netapp plugin: Added support for SnapVaultĀ® statistics.
[collectd.git] / src / netapp.c
index abd5612..f719724 100644 (file)
@@ -1,6 +1,6 @@
 /**
  * collectd - src/netapp.c
- * Copyright (C) 2009  Sven Trenkel
+ * Copyright (C) 2009,2010  Sven Trenkel
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -38,8 +38,8 @@ typedef void service_handler_t(host_config_t *host, na_elem_t *result, void *dat
 
 struct cna_interval_s
 {
-       time_t interval;
-       time_t last_read;
+       cdtime_t interval;
+       cdtime_t last_read;
 };
 typedef struct cna_interval_s cna_interval_t;
 
@@ -79,7 +79,7 @@ typedef struct {
        cna_interval_t interval;
        na_elem_t *query;
 
-       time_t timestamp;
+       cdtime_t timestamp;
        uint64_t name_cache_hit;
        uint64_t name_cache_miss;
        uint64_t find_dir_hit;
@@ -104,7 +104,7 @@ typedef struct {
 typedef struct disk_s {
        char *name;
        uint32_t flags;
-       time_t timestamp;
+       cdtime_t timestamp;
        uint64_t disk_busy;
        uint64_t base_for_disk_busy;
        double disk_busy_percent;
@@ -153,7 +153,7 @@ typedef struct data_volume_perf_s data_volume_perf_t;
 struct data_volume_perf_s {
        char *name;
        uint32_t flags;
-       time_t timestamp;
+       cdtime_t timestamp;
 
        uint64_t read_bytes;
        uint64_t write_bytes;
@@ -219,6 +219,16 @@ typedef struct {
 } cfg_volume_usage_t;
 /* }}} cfg_volume_usage_t */
 
+/*! Data types for SnapVault statistics {{{
+ *
+ * \brief Persistent data for SnapVault(R) statistics
+ */
+typedef struct {
+       cna_interval_t interval;
+       na_elem_t *query;
+} cfg_snapvault_t;
+/* }}} cfg_snapvault_t */
+
 /*! Data types for system statistics {{{
  *
  * \brief Persistent data for system performance counters
@@ -242,13 +252,14 @@ struct host_config_s {
        int port;
        char *username;
        char *password;
-       int interval;
+       cdtime_t interval;
 
        na_server_t *srv;
        cfg_wafl_t *cfg_wafl;
        cfg_disk_t *cfg_disk;
        cfg_volume_perf_t *cfg_volume_perf;
        cfg_volume_usage_t *cfg_volume_usage;
+       cfg_snapvault_t *cfg_snapvault;
        cfg_system_t *cfg_system;
 
        struct host_config_s *next;
@@ -354,6 +365,17 @@ static void free_cfg_volume_usage (cfg_volume_usage_t *cvu) /* {{{ */
        sfree (cvu);
 } /* }}} void free_cfg_volume_usage */
 
+static void free_cfg_snapvault (cfg_snapvault_t *sv) /* {{{ */
+{
+       if (sv == NULL)
+               return;
+
+       if (sv->query != NULL)
+               na_elem_free (sv->query);
+
+       sfree (sv);
+} /* }}} void free_cfg_snapvault */
+
 static void free_cfg_system (cfg_system_t *cs) /* {{{ */
 {
        if (cs == NULL)
@@ -383,6 +405,7 @@ static void free_host_config (host_config_t *hc) /* {{{ */
        free_cfg_wafl (hc->cfg_wafl);
        free_cfg_volume_perf (hc->cfg_volume_perf);
        free_cfg_volume_usage (hc->cfg_volume_usage);
+       free_cfg_snapvault (hc->cfg_snapvault);
        free_cfg_system (hc->cfg_system);
 
        if (hc->srv != NULL)
@@ -566,7 +589,7 @@ static int submit_values (const char *host, /* {{{ */
                const char *plugin_inst,
                const char *type, const char *type_inst,
                value_t *values, int values_len,
-               time_t timestamp)
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_list_t vl = VALUE_LIST_INIT;
 
@@ -576,6 +599,9 @@ static int submit_values (const char *host, /* {{{ */
        if (timestamp > 0)
                vl.time = timestamp;
 
+       if (interval > 0)
+               vl.interval = interval;
+
        if (host != NULL)
                sstrncpy (vl.host, host, sizeof (vl.host));
        else
@@ -590,33 +616,34 @@ static int submit_values (const char *host, /* {{{ */
        return (plugin_dispatch_values (&vl));
 } /* }}} int submit_uint64 */
 
-static int submit_two_counters (const char *host, const char *plugin_inst, /* {{{ */
-               const char *type, const char *type_inst, counter_t val0, counter_t val1,
-               time_t timestamp)
+static int submit_two_derive (const char *host, const char *plugin_inst, /* {{{ */
+               const char *type, const char *type_inst, derive_t val0, derive_t val1,
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t values[2];
 
-       values[0].counter = val0;
-       values[1].counter = val1;
+       values[0].derive = val0;
+       values[1].derive = val1;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               values, 2, timestamp));
-} /* }}} int submit_two_counters */
+                               values, 2, timestamp, interval));
+} /* }}} int submit_two_derive */
 
-static int submit_counter (const char *host, const char *plugin_inst, /* {{{ */
-               const char *type, const char *type_inst, counter_t counter, time_t timestamp)
+static int submit_derive (const char *host, const char *plugin_inst, /* {{{ */
+               const char *type, const char *type_inst, derive_t counter,
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t v;
 
-       v.counter = counter;
+       v.derive = counter;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               &v, 1, timestamp));
-} /* }}} int submit_counter */
+                               &v, 1, timestamp, interval));
+} /* }}} int submit_derive */
 
 static int submit_two_gauge (const char *host, const char *plugin_inst, /* {{{ */
                const char *type, const char *type_inst, gauge_t val0, gauge_t val1,
-               time_t timestamp)
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t values[2];
 
@@ -624,18 +651,19 @@ static int submit_two_gauge (const char *host, const char *plugin_inst, /* {{{ *
        values[1].gauge = val1;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               values, 2, timestamp));
+                               values, 2, timestamp, interval));
 } /* }}} int submit_two_gauge */
 
 static int submit_double (const char *host, const char *plugin_inst, /* {{{ */
-               const char *type, const char *type_inst, double d, time_t timestamp)
+               const char *type, const char *type_inst, double d,
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t v;
 
        v.gauge = (gauge_t) d;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               &v, 1, timestamp));
+                               &v, 1, timestamp, interval));
 } /* }}} int submit_uint64 */
 
 /* Calculate hit ratio from old and new counters and submit the resulting
@@ -647,7 +675,8 @@ static int submit_cache_ratio (const char *host, /* {{{ */
                uint64_t new_misses,
                uint64_t old_hits,
                uint64_t old_misses,
-               time_t timestamp)
+               cdtime_t timestamp,
+               cdtime_t interval)
 {
        value_t v;
 
@@ -664,12 +693,12 @@ static int submit_cache_ratio (const char *host, /* {{{ */
        }
 
        return (submit_values (host, plugin_inst, "cache_ratio", type_inst,
-                               &v, 1, timestamp));
+                               &v, 1, timestamp, interval));
 } /* }}} int submit_cache_ratio */
 
 /* Submits all the caches used by WAFL. Uses "submit_cache_ratio". */
 static int submit_wafl_data (const char *hostname, const char *instance, /* {{{ */
-               cfg_wafl_t *old_data, const cfg_wafl_t *new_data)
+               cfg_wafl_t *old_data, const cfg_wafl_t *new_data, int interval)
 {
        /* Submit requested counters */
        if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_NAME_CACHE | HAVE_WAFL_NAME_CACHE)
@@ -677,28 +706,28 @@ static int submit_wafl_data (const char *hostname, const char *instance, /* {{{
                submit_cache_ratio (hostname, instance, "name_cache_hit",
                                new_data->name_cache_hit, new_data->name_cache_miss,
                                old_data->name_cache_hit, old_data->name_cache_miss,
-                               new_data->timestamp);
+                               new_data->timestamp, interval);
 
        if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_DIR_CACHE | HAVE_WAFL_FIND_DIR)
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_FIND_DIR))
                submit_cache_ratio (hostname, instance, "find_dir_hit",
                                new_data->find_dir_hit, new_data->find_dir_miss,
                                old_data->find_dir_hit, old_data->find_dir_miss,
-                               new_data->timestamp);
+                               new_data->timestamp, interval);
 
        if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_BUF_CACHE | HAVE_WAFL_BUF_HASH)
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_BUF_HASH))
                submit_cache_ratio (hostname, instance, "buf_hash_hit",
                                new_data->buf_hash_hit, new_data->buf_hash_miss,
                                old_data->buf_hash_hit, old_data->buf_hash_miss,
-                               new_data->timestamp);
+                               new_data->timestamp, interval);
 
        if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_INODE_CACHE | HAVE_WAFL_INODE_CACHE)
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_INODE_CACHE))
                submit_cache_ratio (hostname, instance, "inode_cache_hit",
                                new_data->inode_cache_hit, new_data->inode_cache_miss,
                                old_data->inode_cache_hit, old_data->inode_cache_miss,
-                               new_data->timestamp);
+                               new_data->timestamp, interval);
 
        /* Clear old HAVE_* flags */
        old_data->flags &= ~HAVE_WAFL_ALL;
@@ -724,7 +753,7 @@ static int submit_wafl_data (const char *hostname, const char *instance, /* {{{
  * update flags appropriately. */
 static int submit_volume_perf_data (const char *hostname, /* {{{ */
                data_volume_perf_t *old_data,
-               const data_volume_perf_t *new_data)
+               const data_volume_perf_t *new_data, int interval)
 {
        char plugin_instance[DATA_MAX_NAME_LEN];
 
@@ -738,16 +767,16 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
        if (HAS_ALL_FLAGS (old_data->flags, CFG_VOLUME_PERF_IO)
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_VOLUME_PERF_BYTES_READ | HAVE_VOLUME_PERF_BYTES_WRITE))
        {
-               submit_two_counters (hostname, plugin_instance, "disk_octets", /* type instance = */ NULL,
-                               (counter_t) new_data->read_bytes, (counter_t) new_data->write_bytes, new_data->timestamp);
+               submit_two_derive (hostname, plugin_instance, "disk_octets", /* type instance = */ NULL,
+                               (derive_t) new_data->read_bytes, (derive_t) new_data->write_bytes, new_data->timestamp, interval);
        }
 
        /* Check for and submit disk-operations values */
        if (HAS_ALL_FLAGS (old_data->flags, CFG_VOLUME_PERF_OPS)
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_VOLUME_PERF_OPS_READ | HAVE_VOLUME_PERF_OPS_WRITE))
        {
-               submit_two_counters (hostname, plugin_instance, "disk_ops", /* type instance = */ NULL,
-                               (counter_t) new_data->read_ops, (counter_t) new_data->write_ops, new_data->timestamp);
+               submit_two_derive (hostname, plugin_instance, "disk_ops", /* type instance = */ NULL,
+                               (derive_t) new_data->read_ops, (derive_t) new_data->write_ops, new_data->timestamp, interval);
        }
 
        /* Check for, calculate and submit disk-latency values */
@@ -791,7 +820,7 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
                }
 
                submit_two_gauge (hostname, plugin_instance, "disk_latency", /* type instance = */ NULL,
-                               latency_per_op_read, latency_per_op_write, new_data->timestamp);
+                               latency_per_op_read, latency_per_op_write, new_data->timestamp, interval);
        }
 
        /* Clear all HAVE_* flags. */
@@ -812,6 +841,16 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
        return (0);
 } /* }}} int submit_volume_perf_data */
 
+static cdtime_t cna_child_get_cdtime (na_elem_t *data) /* {{{ */
+{
+       time_t t;
+
+       t = (time_t) na_child_get_uint64 (data, "timestamp", /* default = */ 0);
+
+       return (TIME_T_TO_CDTIME_T (t));
+} /* }}} cdtime_t cna_child_get_cdtime */
+
+
 /* 
  * Query functions
  *
@@ -820,7 +859,7 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
  */
 /* Data corresponding to <WAFL /> */
 static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /* {{{ */
-               na_elem_t *data)
+               na_elem_t *data, int interval)
 {
        cfg_wafl_t perf_data;
        const char *plugin_inst;
@@ -831,7 +870,7 @@ static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /*
 
        memset (&perf_data, 0, sizeof (perf_data));
        
-       perf_data.timestamp = (time_t) na_child_get_uint64 (data, "timestamp", 0);
+       perf_data.timestamp = cna_child_get_cdtime (data);
 
        instances = na_elem_child(na_elem_child (data, "instances"), "instance-data");
        if (instances == NULL)
@@ -899,7 +938,7 @@ static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /*
                }
        }
 
-       return (submit_wafl_data (hostname, plugin_inst, cfg_wafl, &perf_data));
+       return (submit_wafl_data (hostname, plugin_inst, cfg_wafl, &perf_data, interval));
 } /* }}} void cna_handle_wafl_data */
 
 static int cna_setup_wafl (cfg_wafl_t *cw) /* {{{ */
@@ -946,7 +985,7 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -955,7 +994,7 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
        if (host->cfg_wafl == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_wafl->interval.interval + host->cfg_wafl->interval.last_read) > now)
                return (0);
 
@@ -973,7 +1012,7 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
                return (-1);
        }
 
-       status = cna_handle_wafl_data (host->name, host->cfg_wafl, data);
+       status = cna_handle_wafl_data (host->name, host->cfg_wafl, data, host->interval);
 
        if (status == 0)
                host->cfg_wafl->interval.last_read = now;
@@ -984,9 +1023,9 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <Disks /> */
 static int cna_handle_disk_data (const char *hostname, /* {{{ */
-               cfg_disk_t *cfg_disk, na_elem_t *data)
+               cfg_disk_t *cfg_disk, na_elem_t *data, cdtime_t interval)
 {
-       time_t timestamp;
+       cdtime_t timestamp;
        na_elem_t *instances;
        na_elem_t *instance;
        na_elem_iter_t instance_iter;
@@ -995,7 +1034,7 @@ static int cna_handle_disk_data (const char *hostname, /* {{{ */
        if ((cfg_disk == NULL) || (data == NULL))
                return (EINVAL);
        
-       timestamp = (time_t) na_child_get_uint64(data, "timestamp", 0);
+       timestamp = cna_child_get_cdtime (data);
 
        instances = na_elem_child (data, "instances");
        if (instances == NULL)
@@ -1098,7 +1137,7 @@ static int cna_handle_disk_data (const char *hostname, /* {{{ */
 
        if ((cfg_disk->flags & CFG_DISK_BUSIEST) && (worst_disk != NULL))
                submit_double (hostname, "system", "percent", "disk_busy",
-                               worst_disk->disk_busy_percent, timestamp);
+                               worst_disk->disk_busy_percent, timestamp, interval);
 
        return (0);
 } /* }}} int cna_handle_disk_data */
@@ -1140,7 +1179,7 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1150,7 +1189,7 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
        if (host->cfg_disk == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_disk->interval.interval + host->cfg_disk->interval.last_read) > now)
                return (0);
 
@@ -1168,7 +1207,7 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
                return (-1);
        }
 
-       status = cna_handle_disk_data (host->name, host->cfg_disk, data);
+       status = cna_handle_disk_data (host->name, host->cfg_disk, data, host->interval);
 
        if (status == 0)
                host->cfg_disk->interval.last_read = now;
@@ -1179,14 +1218,14 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <VolumePerf /> */
 static int cna_handle_volume_perf_data (const char *hostname, /* {{{ */
-               cfg_volume_perf_t *cvp, na_elem_t *data)
+               cfg_volume_perf_t *cvp, na_elem_t *data, cdtime_t interval)
 {
-       time_t timestamp;
+       cdtime_t timestamp;
        na_elem_t *elem_instances;
        na_elem_iter_t iter_instances;
        na_elem_t *elem_instance;
        
-       timestamp = (time_t) na_child_get_uint64(data, "timestamp", 0);
+       timestamp = cna_child_get_cdtime (data);
 
        elem_instances = na_elem_child(data, "instances");
        if (elem_instances == NULL)
@@ -1264,7 +1303,7 @@ static int cna_handle_volume_perf_data (const char *hostname, /* {{{ */
                        }
                } /* for (elem_counter) */
 
-               submit_volume_perf_data (hostname, v, &perf_data);
+               submit_volume_perf_data (hostname, v, &perf_data, interval);
        } /* for (volume) */
 
        return (0);
@@ -1311,7 +1350,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1321,7 +1360,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
        if (host->cfg_volume_perf == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_volume_perf->interval.interval + host->cfg_volume_perf->interval.last_read) > now)
                return (0);
 
@@ -1339,7 +1378,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
                return (-1);
        }
 
-       status = cna_handle_volume_perf_data (host->name, host->cfg_volume_perf, data);
+       status = cna_handle_volume_perf_data (host->name, host->cfg_volume_perf, data, host->interval);
 
        if (status == 0)
                host->cfg_volume_perf->interval.last_read = now;
@@ -1350,7 +1389,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <VolumeUsage /> */
 static int cna_submit_volume_usage_data (const char *hostname, /* {{{ */
-               cfg_volume_usage_t *cfg_volume)
+               cfg_volume_usage_t *cfg_volume, int interval)
 {
        data_volume_usage_t *v;
 
@@ -1398,32 +1437,32 @@ static int cna_submit_volume_usage_data (const char *hostname, /* {{{ */
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_NORM_FREE))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "free",
-                                       (double) norm_free, /* timestamp = */ 0);
+                                       (double) norm_free, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SIS_SAVED))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "sis_saved",
-                                       (double) sis_saved, /* timestamp = */ 0);
+                                       (double) sis_saved, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_NORM_USED))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "used",
-                                       (double) norm_used, /* timestamp = */ 0);
+                                       (double) norm_used, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SNAP_RSVD))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "snap_reserved",
-                                       (double) snap_reserve_free, /* timestamp = */ 0);
+                                       (double) snap_reserve_free, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SNAP_USED | HAVE_VOLUME_USAGE_SNAP_RSVD))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "snap_reserve_used",
-                                       (double) snap_reserve_used, /* timestamp = */ 0);
+                                       (double) snap_reserve_used, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SNAP_USED))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "snap_normal_used",
-                                       (double) snap_norm_used, /* timestamp = */ 0);
+                                       (double) snap_norm_used, /* timestamp = */ 0, interval);
 
                /* Clear all the HAVE_* flags */
                v->flags &= ~HAVE_VOLUME_USAGE_ALL;
@@ -1440,7 +1479,7 @@ static int cna_change_volume_status (const char *hostname, /* {{{ */
        notification_t n;
 
        memset (&n, 0, sizeof (&n));
-       n.time = time (NULL);
+       n.time = cdtime ();
        sstrncpy (n.host, hostname, sizeof (n.host));
        sstrncpy (n.plugin, "netapp", sizeof (n.plugin));
        sstrncpy (n.plugin_instance, v->name, sizeof (n.plugin_instance));
@@ -1490,7 +1529,7 @@ static void cna_handle_volume_snap_usage(const host_config_t *host, /* {{{ */
        {
                ERROR ("netapp plugin: cna_handle_volume_snap_usage: "
                                "na_elem_child (\"snapshots\") failed "
-                               "for host %s.", hostname);
+                               "for host %s.", host->name);
                na_elem_free(data);
                return;
        }
@@ -1525,7 +1564,7 @@ static int cna_handle_volume_usage_data (const host_config_t *host, /* {{{ */
        {
                ERROR ("netapp plugin: cna_handle_volume_usage_data: "
                                "na_elem_child (\"volumes\") failed "
-                               "for host %s.", hostname);
+                               "for host %s.", host->name);
                return (-1);
        }
 
@@ -1586,6 +1625,9 @@ static int cna_handle_volume_usage_data (const host_config_t *host, /* {{{ */
                if (sis == NULL)
                        continue;
 
+               if (na_elem_child(sis, "sis-info"))
+                       sis = na_elem_child(sis, "sis-info");
+               
                sis_state = na_child_get_string(sis, "state");
                if (sis_state == NULL)
                        continue;
@@ -1650,7 +1692,7 @@ static int cna_handle_volume_usage_data (const host_config_t *host, /* {{{ */
                } /* }}} end of 32-bit workaround */
        } /* for (elem_volume) */
 
-       return (cna_submit_volume_usage_data (host->name, cfg_volume));
+       return (cna_submit_volume_usage_data (host->name, cfg_volume, host->interval));
 } /* }}} int cna_handle_volume_usage_data */
 
 static int cna_setup_volume_usage (cfg_volume_usage_t *cvu) /* {{{ */
@@ -1675,7 +1717,7 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1685,7 +1727,7 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
        if (host->cfg_volume_usage == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_volume_usage->interval.interval + host->cfg_volume_usage->interval.last_read) > now)
                return (0);
 
@@ -1712,23 +1754,182 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
        return (status);
 } /* }}} int cna_query_volume_usage */
 
+/* Data corresponding to <SnapVault /> */
+static int cna_handle_snapvault_data (const char *hostname, /* {{{ */
+               cfg_snapvault_t *cfg_snapvault, na_elem_t *data, cdtime_t interval)
+{
+       na_elem_t *status;
+       na_elem_iter_t status_iter;
+
+       status = na_elem_child (data, "status-list");
+       if (! status) {
+               ERROR ("netapp plugin: SnapVault status record missing status-list");
+               return (0);
+       }
+
+       status_iter = na_child_iterator (status);
+       for (status = na_iterator_next (&status_iter);
+                       status != NULL;
+                       status = na_iterator_next (&status_iter))
+       {
+               const char *dest_sys, *dest_path, *src_sys, *src_path;
+               char plugin_instance[DATA_MAX_NAME_LEN];
+               uint64_t value;
+
+               dest_sys  = na_child_get_string (status, "destination-system");
+               dest_path = na_child_get_string (status, "destination-path");
+               src_sys   = na_child_get_string (status, "source-system");
+               src_path  = na_child_get_string (status, "source-path");
+
+               if ((! dest_sys) || (! dest_path) || (! src_sys) || (! src_path))
+                       continue;
+
+               value = na_child_get_uint64 (status, "lag-time", UINT64_MAX);
+               if (value == UINT64_MAX) /* no successful baseline transfer yet */
+                       continue;
+
+               /* possible TODO: make plugin instance configurable */
+               ssnprintf (plugin_instance, sizeof (plugin_instance),
+                               "snapvault-%s", dest_path);
+               submit_double (hostname, plugin_instance, /* type = */ "delay", NULL,
+                               (double)value, /* timestamp = */ 0, interval);
+
+               value = na_child_get_uint64 (status, "last-transfer-duration", UINT64_MAX);
+               if (value != UINT64_MAX)
+                       submit_double (hostname, plugin_instance, /* type = */ "duration", "last_transfer",
+                                       (double)value, /* timestamp = */ 0, interval);
+
+               value = na_child_get_uint64 (status, "transfer-progress", UINT64_MAX);
+               if (value == UINT64_MAX)
+                       value = na_child_get_uint64 (status, "last-transfer-size", UINT64_MAX);
+               if (value != UINT64_MAX) {
+                       value *= 1024; /* this is kilobytes */
+                       submit_derive (hostname, plugin_instance, /* type = */ "if_rx_octets", "transferred",
+                                       value, /* timestamp = */ 0, interval);
+               }
+       } /* for (status) */
+
+       return (0);
+} /* }}} int cna_handle_snapvault_data */
+
+static int cna_handle_snapvault_iter (host_config_t *host, /* {{{ */
+               na_elem_t *data)
+{
+       const char *tag;
+
+       uint32_t records_count;
+       uint32_t i;
+
+       records_count = na_child_get_uint32 (data, "records", UINT32_MAX);
+       if (records_count == UINT32_MAX)
+               return 0;
+
+       tag = na_child_get_string (data, "tag");
+       if (! tag)
+               return 0;
+
+       DEBUG ("netapp plugin: Iterating %u SV records (tag = %s)", records_count, tag);
+
+       for (i = 0; i < records_count; ++i) {
+               na_elem_t *elem;
+
+               elem = na_server_invoke (host->srv,
+                               "snapvault-secondary-relationship-status-list-iter-next",
+                               "maximum", "1", "tag", tag, NULL);
+
+               if (na_results_status (elem) != NA_OK)
+               {
+                       ERROR ("netapp plugin: cna_handle_snapvault_iter: "
+                                       "na_server_invoke failed for host %s: %s",
+                                       host->name, na_results_reason (data));
+                       na_elem_free (elem);
+                       return (-1);
+               }
+
+               cna_handle_snapvault_data (host->name, host->cfg_snapvault, elem, host->interval);
+               na_elem_free (elem);
+       }
+
+       na_elem_free (na_server_invoke (host->srv,
+                       "snapvault-secondary-relationship-status-list-iter-end",
+                       "tag", tag, NULL));
+       return (0);
+} /* }}} int cna_handle_snapvault_iter */
+
+static int cna_setup_snapvault (cfg_snapvault_t *sv) /* {{{ */
+{
+       if (sv == NULL)
+               return (EINVAL);
+
+       if (sv->query != NULL)
+               return (0);
+
+       sv->query = na_elem_new ("snapvault-secondary-relationship-status-list-iter-start");
+       if (sv->query == NULL)
+       {
+               ERROR ("netapp plugin: na_elem_new failed.");
+               return (-1);
+       }
+
+       return (0);
+} /* }}} int cna_setup_snapvault */
+
+static int cna_query_snapvault (host_config_t *host) /* {{{ */
+{
+       na_elem_t *data;
+       int status;
+       cdtime_t now;
+
+       if (host == NULL)
+               return EINVAL;
+
+       if (host->cfg_snapvault == NULL)
+               return 0;
+
+       now = cdtime ();
+       if ((host->cfg_snapvault->interval.interval + host->cfg_snapvault->interval.last_read) > now)
+               return (0);
+
+       status = cna_setup_snapvault (host->cfg_snapvault);
+       if (status != 0)
+               return (status);
+       assert (host->cfg_snapvault->query != NULL);
+
+       data = na_server_invoke_elem (host->srv, host->cfg_snapvault->query);
+       if (na_results_status (data) != NA_OK)
+       {
+               ERROR ("netapp plugin: cna_query_snapvault: na_server_invoke_elem failed for host %s: %s",
+                               host->name, na_results_reason (data));
+               na_elem_free (data);
+               return (-1);
+       }
+
+       status = cna_handle_snapvault_iter (host, data);
+
+       if (status == 0)
+               host->cfg_snapvault->interval.last_read = now;
+
+       na_elem_free (data);
+       return (status);
+} /* }}} int cna_query_snapvault */
+
 /* Data corresponding to <System /> */
 static int cna_handle_system_data (const char *hostname, /* {{{ */
-               cfg_system_t *cfg_system, na_elem_t *data)
+               cfg_system_t *cfg_system, na_elem_t *data, int interval)
 {
        na_elem_t *instances;
        na_elem_t *counter;
        na_elem_iter_t counter_iter;
 
-       counter_t disk_read = 0, disk_written = 0;
-       counter_t net_recv = 0, net_sent = 0;
-       counter_t cpu_busy = 0, cpu_total = 0;
+       derive_t disk_read = 0, disk_written = 0;
+       derive_t net_recv = 0, net_sent = 0;
+       derive_t cpu_busy = 0, cpu_total = 0;
        uint32_t counter_flags = 0;
 
        const char *instance;
-       time_t timestamp;
+       cdtime_t timestamp;
        
-       timestamp = (time_t) na_child_get_uint64 (data, "timestamp", 0);
+       timestamp = cna_child_get_cdtime (data);
 
        instances = na_elem_child(na_elem_child (data, "instances"), "instance-data");
        if (instances == NULL)
@@ -1765,48 +1966,48 @@ static int cna_handle_system_data (const char *hostname, /* {{{ */
                        continue;
 
                if (!strcmp(name, "disk_data_read")) {
-                       disk_read = (counter_t) (value * 1024);
+                       disk_read = (derive_t) (value * 1024);
                        counter_flags |= 0x01;
                } else if (!strcmp(name, "disk_data_written")) {
-                       disk_written = (counter_t) (value * 1024);
+                       disk_written = (derive_t) (value * 1024);
                        counter_flags |= 0x02;
                } else if (!strcmp(name, "net_data_recv")) {
-                       net_recv = (counter_t) (value * 1024);
+                       net_recv = (derive_t) (value * 1024);
                        counter_flags |= 0x04;
                } else if (!strcmp(name, "net_data_sent")) {
-                       net_sent = (counter_t) (value * 1024);
+                       net_sent = (derive_t) (value * 1024);
                        counter_flags |= 0x08;
                } else if (!strcmp(name, "cpu_busy")) {
-                       cpu_busy = (counter_t) value;
+                       cpu_busy = (derive_t) value;
                        counter_flags |= 0x10;
                } else if (!strcmp(name, "cpu_elapsed_time")) {
-                       cpu_total = (counter_t) value;
+                       cpu_total = (derive_t) value;
                        counter_flags |= 0x20;
                } else if ((cfg_system->flags & CFG_SYSTEM_OPS)
                                && (value > 0) && (strlen(name) > 4)
                                && (!strcmp(name + strlen(name) - 4, "_ops"))) {
-                       submit_counter (hostname, instance, "disk_ops_complex", name,
-                                       (counter_t) value, timestamp);
+                       submit_derive (hostname, instance, "disk_ops_complex", name,
+                                       (derive_t) value, timestamp, interval);
                }
        } /* for (counter) */
 
        if ((cfg_system->flags & CFG_SYSTEM_DISK)
                        && (HAS_ALL_FLAGS (counter_flags, 0x01 | 0x02)))
-               submit_two_counters (hostname, instance, "disk_octets", NULL,
-                               disk_read, disk_written, timestamp);
+               submit_two_derive (hostname, instance, "disk_octets", NULL,
+                               disk_read, disk_written, timestamp, interval);
                                
        if ((cfg_system->flags & CFG_SYSTEM_NET)
                        && (HAS_ALL_FLAGS (counter_flags, 0x04 | 0x08)))
-               submit_two_counters (hostname, instance, "if_octets", NULL,
-                               net_recv, net_sent, timestamp);
+               submit_two_derive (hostname, instance, "if_octets", NULL,
+                               net_recv, net_sent, timestamp, interval);
 
        if ((cfg_system->flags & CFG_SYSTEM_CPU)
                        && (HAS_ALL_FLAGS (counter_flags, 0x10 | 0x20)))
        {
-               submit_counter (hostname, instance, "cpu", "system",
-                               cpu_busy, timestamp);
-               submit_counter (hostname, instance, "cpu", "idle",
-                               cpu_total - cpu_busy, timestamp);
+               submit_derive (hostname, instance, "cpu", "system",
+                               cpu_busy, timestamp, interval);
+               submit_derive (hostname, instance, "cpu", "idle",
+                               cpu_total - cpu_busy, timestamp, interval);
        }
 
        return (0);
@@ -1835,7 +2036,7 @@ static int cna_query_system (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1844,7 +2045,7 @@ static int cna_query_system (host_config_t *host) /* {{{ */
        if (host->cfg_system == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_system->interval.interval + host->cfg_system->interval.last_read) > now)
                return (0);
 
@@ -1862,7 +2063,7 @@ static int cna_query_system (host_config_t *host) /* {{{ */
                return (-1);
        }
 
-       status = cna_handle_system_data (host->name, host->cfg_system, data);
+       status = cna_handle_system_data (host->name, host->cfg_system, data, host->interval);
 
        if (status == 0)
                host->cfg_system->interval.last_read = now;
@@ -1901,23 +2102,12 @@ static int cna_config_bool_to_flag (const oconfig_item_t *ci, /* {{{ */
 static int cna_config_get_interval (const oconfig_item_t *ci, /* {{{ */
                cna_interval_t *out_interval)
 {
-       time_t tmp;
-
-       if ((ci == NULL) || (out_interval == NULL))
-               return (EINVAL);
-
-       if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
-       {
-               WARNING ("netapp plugin: The `Interval' option needs exactly one numeric argument.");
-               return (-1);
-       }
+       cdtime_t tmp = 0;
+       int status;
 
-       tmp = (time_t) (ci->values[0].value.number + .5);
-       if (tmp < 1)
-       {
-               WARNING ("netapp plugin: The `Interval' option needs a positive integer argument.");
-               return (-1);
-       }
+       status = cf_util_get_cdtime (ci, &tmp);
+       if (status != 0)
+               return (status);
 
        out_interval->interval = tmp;
        out_interval->last_read = 0;
@@ -2303,6 +2493,42 @@ static int cna_config_volume_usage(host_config_t *host, /* {{{ */
        return (0);
 } /* }}} int cna_config_volume_usage */
 
+/* Corresponds to a <SnapVault /> block */
+static int cna_config_snapvault (host_config_t *host, /* {{{ */
+               const oconfig_item_t *ci)
+{
+       cfg_snapvault_t *cfg_snapvault;
+       int i;
+
+       if ((host == NULL) || (ci == NULL))
+               return EINVAL;
+
+       if (host->cfg_snapvault == NULL)
+       {
+               cfg_snapvault = malloc (sizeof (*cfg_snapvault));
+               if (cfg_snapvault == NULL)
+                       return ENOMEM;
+               memset (cfg_snapvault, 0, sizeof (*cfg_snapvault));
+               cfg_snapvault->query = NULL;
+
+               host->cfg_snapvault = cfg_snapvault;
+       }
+
+       cfg_snapvault = host->cfg_snapvault;
+
+       for (i = 0; i < ci->children_num; ++i) {
+               oconfig_item_t *item = ci->children + i;
+
+               if (strcasecmp (item->key, "Interval") == 0)
+                       cna_config_get_interval (item, &cfg_snapvault->interval);
+               else
+                       WARNING ("netapp plugin: The option %s is not allowed within "
+                                       "`SnapVault' blocks.", item->key);
+       }
+
+       return 0;
+} /* }}} int cna_config_snapvault */
+
 /* Corresponds to a <System /> block */
 static int cna_config_system (host_config_t *host, /* {{{ */
                oconfig_item_t *ci)
@@ -2383,6 +2609,7 @@ static host_config_t *cna_config_host (const oconfig_item_t *ci) /* {{{ */
        host->cfg_disk = NULL;
        host->cfg_volume_perf = NULL;
        host->cfg_volume_usage = NULL;
+       host->cfg_snapvault = NULL;
        host->cfg_system = NULL;
 
        status = cf_util_get_string (ci, &host->name);
@@ -2417,11 +2644,7 @@ static host_config_t *cna_config_host (const oconfig_item_t *ci) /* {{{ */
                } else if (!strcasecmp(item->key, "Password")) {
                        status = cf_util_get_string (item, &host->password);
                } else if (!strcasecmp(item->key, "Interval")) {
-                       if (item->values_num != 1 || item->values[0].type != OCONFIG_TYPE_NUMBER || item->values[0].value.number != (int) item->values[0].value.number || item->values[0].value.number < 2) {
-                               WARNING("netapp plugin: \"Interval\" of host %s needs exactly one integer argument.", ci->values[0].value.string);
-                               continue;
-                       }
-                       host->interval = item->values[0].value.number;
+                       status = cf_util_get_cdtime (item, &host->interval);
                } else if (!strcasecmp(item->key, "WAFL")) {
                        cna_config_wafl(host, item);
                } else if (!strcasecmp(item->key, "Disks")) {
@@ -2430,6 +2653,8 @@ static host_config_t *cna_config_host (const oconfig_item_t *ci) /* {{{ */
                        cna_config_volume_performance(host, item);
                } else if (!strcasecmp(item->key, "VolumeUsage")) {
                        cna_config_volume_usage(host, item);
+               } else if (!strcasecmp(item->key, "SnapVault")) {
+                       cna_config_snapvault(host, item);
                } else if (!strcasecmp(item->key, "System")) {
                        cna_config_system(host, item);
                } else {
@@ -2493,7 +2718,7 @@ static int cna_init_host (host_config_t *host) /* {{{ */
        na_server_adminuser(host->srv, host->username, host->password);
        na_server_set_timeout(host->srv, 5 /* seconds */);
 
-       return 0;
+       return (0);
 } /* }}} int cna_init_host */
 
 static int cna_init (void) /* {{{ */
@@ -2510,6 +2735,36 @@ static int cna_init (void) /* {{{ */
        return (0);
 } /* }}} cna_init */
 
+static int cna_read_internal (host_config_t *host) { /* {{{ */
+       int status;
+
+       status = cna_query_wafl (host);
+       if (status != 0)
+               return (status);
+
+       status = cna_query_disk (host);
+       if (status != 0)
+               return (status);
+
+       status = cna_query_volume_perf (host);
+       if (status != 0)
+               return (status);
+
+       status = cna_query_volume_usage (host);
+       if (status != 0)
+               return (status);
+
+       status = cna_query_snapvault (host);
+       if (status != 0)
+               return (status);
+
+       status = cna_query_system (host);
+       if (status != 0)
+               return (status);
+
+       return 0;
+} /* }}} int cna_read_internal */
+
 static int cna_read (user_data_t *ud) { /* {{{ */
        host_config_t *host;
        int status;
@@ -2522,12 +2777,14 @@ static int cna_read (user_data_t *ud) { /* {{{ */
        status = cna_init_host (host);
        if (status != 0)
                return (status);
-       
-       cna_query_wafl (host);
-       cna_query_disk (host);
-       cna_query_volume_perf (host);
-       cna_query_volume_usage (host);
-       cna_query_system (host);
+
+       status = cna_read_internal (host);
+       if (status != 0)
+       {
+               if (host->srv != NULL)
+                       na_server_close (host->srv);
+               host->srv = NULL;
+       }
 
        return 0;
 } /* }}} int cna_read */
@@ -2552,14 +2809,13 @@ static int cna_config (oconfig_item_t *ci) { /* {{{ */
 
                        ssnprintf (cb_name, sizeof (cb_name), "netapp-%s", host->name);
 
-                       memset (&interval, 0, sizeof (interval));
-                       interval.tv_sec = host->interval;
+                       CDTIME_T_TO_TIMESPEC (host->interval, &interval);
 
                        memset (&ud, 0, sizeof (ud));
                        ud.data = host;
                        ud.free_func = (void (*) (void *)) free_host_config;
 
-                       plugin_register_complex_read (cb_name,
+                       plugin_register_complex_read (/* group = */ NULL, cb_name,
                                        /* callback  = */ cna_read, 
                                        /* interval  = */ (host->interval > 0) ? &interval : NULL,
                                        /* user data = */ &ud);