Select partitions based on the filesystem type.
-=item B<IgnoreSelected> I<true>|I<false>
+=item B<IgnoreSelected> B<true>|B<false>
Invert the selection: If set to true, all partitions B<except> the ones that
match any one of the criteria are collected. By default only selected
partitions are collected if a selection is made. If no selection is configured
at all, B<all> partitions are selected.
-=item B<ReportByDevice> I<true>|I<false>
+=item B<ReportByDevice> B<true>|B<false>
Report using the device name rather than the mountpoint. i.e. with this I<false>,
(the default), it will report a disk as "root", but with it I<true>, it will be
"sda1" (or whichever).
+=item B<ReportReserved> B<true>|B<false>
+
+When enabled, the blocks reserved for root are reported separately. When
+disabled (the default for backwards compatibility reasons) the reserved space
+will be included in the "free" space.
+
+When disabled, the "df" type will be used to store "free" and "used" space. The
+mount point or disk name (see option B<ReportByDevice>) is used as type
+instance in this case (again: backwards compatibility).
+
+When enabled, the type "df_complex" is used and three files are created. The
+mount point or disk name is used as plugin instance and the type instance is
+set to "free", "reserved" and "used" as appropriate.
+
+Enabling this option is recommended.
+
+=item B<ReportInodes> B<true>|B<false>
+
+Enables or disables reporting of free, reserved and used inodes. Defaults to
+inode collection being disabled.
+
+Enable this option if inodes are a scarce resource for you, usually because
+many small files are stored on the disk. This is a usual scenario for mail
+transfer agents and web caches.
+
=back
=head2 Plugin C<disk>
</Disks>
<VolumePerf>
+ Interval 30
GetIO "volume0"
IgnoreSelectedIO false
GetOps "volume0"
</VolumePerf>
<VolumeUsage>
- Capacity "vol0"
- Capacity "vol1"
+ Interval 30
+ GetCapacity "vol0"
+ GetCapacity "vol1"
IgnoreSelectedCapacity false
- Snapshot "vol1"
- Snapshot "vol3"
+ GetSnapshot "vol1"
+ GetSnapshot "vol3"
IgnoreSelectedSnapshot false
</VolumeUsage>
=over 4
-=item B<Multiplier> I<Multiplier>
-
-The host specific interval between data collections is multiplied by this value
-for collecting these data.
-
-Optional
-
-Type: integer
+=item B<Interval> I<Seconds>
-Default: 1
+Collect the respective statistics every I<Seconds> seconds. Defaults to the
+host specific setting.
=back
=over 4
+=item B<Interval> I<Seconds>
+
+Collect volume performance data every I<Seconds> seconds.
+
=item B<GetIO> I<Volume>
=item B<GetOps> I<Volume>
=over 4
-=item B<Capacity> I<VolumeName>
+=item B<Interval> I<Seconds>
+
+Collect volume usage statistics every I<Seconds> seconds.
+
+=item B<GetCapacity> I<VolumeName>
The current capacity of the volume will be collected. This will result in two
to four value lists, depending on the configuration of the volume. All data
=item B<IgnoreSelectedCapacity> B<true>|B<false>
-Specify whether to collect only the volumes selected by the B<Capacity> option
-or to ignore those volumes. B<IgnoreSelectedCapacity> defaults to B<false>.
-However, if no B<Capacity> option is specified at all, all capacities will be
-selected anyway.
+Specify whether to collect only the volumes selected by the B<GetCapacity>
+option or to ignore those volumes. B<IgnoreSelectedCapacity> defaults to
+B<false>. However, if no B<GetCapacity> option is specified at all, all
+capacities will be selected anyway.
+
+=item B<GetSnapshot> I<VolumeName>
+
+Select volumes from which to collect snapshot information.
-=item B<Snapshot> I<VolumeName>
+Usually, the space used for snapshots is included in the space reported as
+"used". If snapshot information is collected as well, the space used for
+snapshots is subtracted from the used space.
-B<Defunct!> Select volumes from which to collect snapshot information.
+To make things even more interesting, it is possible to reserve space to be
+used for snapshots. If the space required for snapshots is less than that
+reserved space, there is "reserved free" and "reserved used" space in addition
+to "free" and "used". If the space required for snapshots exceeds the reserved
+space, that part allocated in the normal space is subtracted from the "used"
+space again.
Repeat this option to specify multiple volumes.
=item B<IgnoreSelectedSnapshot>
-Specify whether to collect only the volumes selected by the B<Snapshot> option
-or to ignore those volumes. B<IgnoreSelectedSnapshot> defaults to B<false>.
-However, if no B<Snapshot> option is specified at all, all capacities will be
-selected anyway.
+Specify whether to collect only the volumes selected by the B<GetSnapshot>
+option or to ignore those volumes. B<IgnoreSelectedSnapshot> defaults to
+B<false>. However, if no B<GetSnapshot> option is specified at all, all
+capacities will be selected anyway.
=back