+ $cache = {};
+ while (my $line = <$fh>)
+ {
+ chomp ($line);
+ my @fields = split (' ', $line);
+ $cache->{$fields[0] . '-' . $fields[1]} = $fields[2];
+ }
+ close ($fh);
+ }
+
+ return (defined ($cache->{$orig_instance})
+ ? $cache->{$orig_instance}
+ : $orig_instance);
+}}
+
+sub special_disk
+{
+ my $orig_filename = shift;
+ my $orig = shift;
+ my $dest_filename = shift;
+ my $dest = shift;
+ my $dest_directory;
+
+ $dest->{'type_instance'} = undef;
+ $dest->{'plugin_instance'} = _special_disk_instance ($orig->{'type_instance'});
+ if ($dest->{'plugin_instance'} eq $orig->{'type_instance'})
+ {
+ print qq(echo "You may need to rename these files" >&2\n);
+ }
+
+ $dest->{'type'} = 'disk_merged';
+ $dest_filename = get_filename ($dest);
+
+ $dest_directory = dirname ($dest_filename);
+ if (!exists ($OutDirs{$dest_directory}))
+ {
+ print "[ -d '$OutDir/$dest_directory' ] || mkdir -p '$OutDir/$dest_directory'\n";
+ $OutDirs{$dest_directory} = 1;
+ }
+
+ print "./extractDS.px -i '$InDir/$orig_filename' -s 'rmerged' -s 'wmerged' -o '$OutDir/$dest_filename' -d 'read' -d 'write'\n";
+
+ $dest->{'type'} = 'disk_octets';
+ $dest_filename = get_filename ($dest);
+ print "./extractDS.px -i '$InDir/$orig_filename' -s 'rbytes' -s 'wbytes' -o '$OutDir/$dest_filename' -d 'read' -d 'write'\n";
+
+ $dest->{'type'} = 'disk_ops';
+ $dest_filename = get_filename ($dest);
+ print "./extractDS.px -i '$InDir/$orig_filename' -s 'rcount' -s 'wcount' -o '$OutDir/$dest_filename' -d 'read' -d 'write'\n";
+
+ $dest->{'type'} = 'disk_time';
+ $dest_filename = get_filename ($dest);
+ print "./extractDS.px -i '$InDir/$orig_filename' -s 'rtime' -s 'wtime' -o '$OutDir/$dest_filename' -d 'read' -d 'write'\n";
+}
+
+sub exit_usage
+{
+ print <<EOF;
+Usage: $0 [-i indir] [-o outdir] [--hostname myhostname]
+EOF
+ exit (1);