As I wrote before, we have a bunch of filers (and a ton of volumes w/ luns on them), that I need to monitor. At first, I tried the existing NetApp Nagios-Plugin(s), but they all use SNMP and with that I can either watch all volumes or none. And that didn’t satisfy me.
Don’t get me wrong, the existing plugins are okay and I still use them for stuff (like GLOBALSTATUS or FAN/CPU/POWER) which isn’t present in the API or real hard to get at, however I wanted more. So I ended up looking at the NetApp API, and ended up writing a “short” plugin for Nagios using Perl.
Maybe if I’m ever bored, I’ll rewrite it using C, but for now the Perl plugin has to suffice.
So far the plugin supports the following things:
- Monitoring FlexVolumes (simply watching the free space)
- Monitoring LUN space (the allocated space inside a FlexVolume for iSCSI/FC LUNs)
- Monitoring Snapshot space (the allocated space inside a FlexVolume for Snapshots)
- Monitoring SnapVault relations (and their age)
- Monitoring SnapMirror relations (and their age)
The plugin will return performance data for most (if not all) of those classes. It needs a user on the filer you wish to monitor – which sadly needs to have the admin role.
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#!/usr/bin/perl -w # check_netapp-volume is a Nagios plugin to monitor a single volume # and it's occupied space. # Copyright (c) 2013, Christian Thomas Heim <christian.heim@barfoo.org> # # This module is free software; you can redistribute it and/or modify it # under the terms of GNU General Public License (GPL) version 3. use strict; use warnings; use lib "/usr/lib/perl5/site_perl/5.10.0/NetApp"; use NaServer; use NaElement; use Nagios::Plugin; use File::Basename; # IMPORTANT: Nagios plugins could be executed using embedded perl in this case # the main routine would be executed as a subroutine and all the # declared subroutines would therefore be inner subroutines # This will cause all the global lexical variables not to stay shared # in the subroutines! # # All variables are therefore declared as package variables... use vars qw( $VERSION $PROGNAME $plugin $verbose $WAFL_VOL_RESERVE ); $VERSION = '0.1'; $PROGNAME = basename($0); $WAFL_VOL_RESERVE = '1.03'; $plugin = Nagios::Plugin->new( usage=> "Usage: %s --hostname=<hostname> --cliuser=<cliuser> --clipassword=<clipassword> --flexvol=<volumename> ( -w|--warning=<warningthreshold> ) ( -c|--critical=<criticalthreshold> ) ( --snapreserve ) ( --lunspace ) ( --free ) ( --snapvault ) ( --snapmirror ) ( --aggr=aggr0 )", version => $VERSION, blurb => 'This plugin checks a single volume for it\'s occupied space', license => "This nagios plugin is free software, and comes with ABSOLUTELY NO WARRANTY. It may be used, redistributed and/or modified under the terms of the GNU General Public Licence (see http://www.fsf.org/licensing/licenses/gpl.txt).", extra => " Examples: Checking the free space of a FlexVolume (default): $PROGNAME -H 10.0.0.35 -u root -p toaster123 --flexvol=sles_boot --free -w 85 -c 92 Checking the amount of lun space for a FlexVolume: $PROGNAME -H 10.0.0.35 -u root -p toaster123 --flexvol=sles_boot --lunspace Checking the Snap Reserve of a FlexVolume: $PROGNAME -H 10.0.0.35 -u root -p toaster123 --flexvol=sles_boot --snapreserve -w 80 -c 92 Checking the SnapVault age of a Qtree-transfer: $PROGNAME -H 10.0.0.35 -u root -p toaster123 --flexvol=sles_boot --snapvault -w 24 -c 26 Checking the SnapMirror age of a Qtree-transfer: $PROGNAME -H 10.0.0.35 -u root -p toaster123 --flexvol=sles_boot --snapmirror -w 24 -c 26 Checking the free space of an aggregate: $PROGNAME -H 10.0.0.35 -u root -p toaster123 --aggr=aggr0 -w 85 -c 92 " ); $plugin->add_arg( spec => 'hostname|H=s', help => qq{-H, --hostname=STRING Hostname/IP-Adress to use for the check.}, required => 1, ); $plugin->add_arg( spec => 'cliuser=s', help => qq{--cliuser=STRING Username for CLI/API access.}, required => 1, ); $plugin->add_arg( spec => 'clipassword=s', help => qq{--clipassword=STRING Password for CLI/API access.}, required => 1, ); $plugin->add_arg( spec => 'flexvol=s', help => qq{-f, --flexvol=STRING FlexVolume that should be checked.}, required => 0, ); $plugin->add_arg( spec => 'aggr=s', help => qq{-a, --aggr=STRING Aggregate that should be checked.}, required => 0, ); $plugin->add_arg( spec => 'snapreserve', help => qq{--snapreserve Check the Snap Reserve of the selected volume.}, required => 0, ); $plugin->add_arg( spec => 'lunspace', help => qq{--lunspace Check if all LUNs and the Snapshot reserve fit into the volume.}, required => 0, ); $plugin->add_arg( spec => 'snapvault', help => qq{--snapvault Check the SnapVault age of a Qtree-SnapVault transfer.}, required => 0, ); $plugin->add_arg( spec => 'snapmirror', help => qq{--snapmirror Check the SnapMirror age of a Qtree-SnapVault transfer.}, required => 0, ); $plugin->add_arg( spec => 'sis', help => qq{--sis Check the Deduplication information.}, required => 0, ); $plugin->add_arg( spec => 'free', help => qq{--free Check the free space of a volume.}, required => 0, ); $plugin->add_arg( spec => 'warning|w=i', help => qq{-i, --warning=INTEGER Free space left in percent that should be considered WARNING.}, required => 0, ); $plugin->add_arg( spec => 'critical|c=i', help => qq{-c, --critical=INTEGER Free space left in percent that should be considered CRITICAL.}, required => 0, ); # Parse arguments and process standard ones (e.g. usage, help, version) $plugin->getopts; my ( $hostname, $username, $password, $aggregate, $flexvol, $warning, $critical, $stdout, $filer, $mode ); $hostname = $plugin->opts->hostname; $aggregate = $plugin->opts->aggr; $flexvol = $plugin->opts->flexvol; $username = $plugin->opts->cliuser; $password = $plugin->opts->clipassword; $warning = $plugin->opts->warning; $critical = $plugin->opts->critical; $verbose = $plugin->opts->verbose; if ( defined $plugin->opts->aggr ) { $mode = "aggregate"; } elsif ( defined $plugin->opts->lunspace ) { $mode = "lunspace"; } elsif ( defined $plugin->opts->snapreserve ) { $mode = "snapreserve"; } elsif ( defined $plugin->opts->snapvault ) { $mode = "snapvault"; } elsif ( defined $plugin->opts->snapmirror ) { $mode = "snapmirror"; } elsif ( defined $plugin->opts->sis ) { $mode = "sis"; } elsif ( defined $plugin->opts->free ) { $mode = "volspace"; } else { $mode = "volspace"; } $filer = NaServer->new($hostname, 1, 3); $stdout = $filer->set_style("LOGIN"); if (ref ($stdout) eq "NaElement" && $stdout->results_errno != 0 ) { $plugin->nagios_exit(UNKNOWN, "Unable to set login type. ". $stdout->results_reason()); } $filer->set_admin_user($username, $password); $stdout = $filer->set_transport_type("HTTPS"); if (ref ($stdout) eq "NaElement" && $stdout->results_errno != 0 ) { $plugin->nagios_exit(UNKNOWN, "Unable to set transport to HTTPS. ". $stdout->results_reason() ); } sub byteconv($) { my $c = shift; $c >= 1073741824 ? sprintf("%0.2fTB", $c/1073741824) : $c >= 1048576 ? sprintf("%0.2fGB", $c/1048576) : $c >= 1024 ? sprintf("%0.2fMB", $c/1024) : $c . "B"; } sub timeconv($) { my $secs = shift; if ($secs >= 365*24*60*60) { return sprintf '%.1f years', $secs/(365*24*60*60) } elsif ($secs >= 24*60*60) { return sprintf '%.1f days', $secs/(24*60*60) } elsif ($secs >= 60*60) { return sprintf '%.1f hours', $secs/(60*60) } elsif ($secs >= 60) { return sprintf '%.1f minutes', $secs/(60) } else { return sprintf '%.1f seconds', $secs } } sub aggrspaceinfo { my $session = $_[0]; my $aggr = $_[1]; my $out; my $status; my @result; my $aggrinfo; my $aggr_size; my $aggr_free; my $aggr_used; my $aggr_vol_alloc; my $aggr_vol_used; my %aggri = (); $out = $session->invoke("aggr-space-list-info", "aggregate", $aggr); if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } $status = $out->child_get("aggregates"); if ($status->children_get() eq 0) { # snapreserve might be 0 } elsif ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } foreach $aggrinfo (@result){ $aggr_size = $aggrinfo->child_get_string("size-nominal")/1024; $aggr_free = $aggrinfo->child_get_string("size-free")/1024; $aggr_used = $aggrinfo->child_get_string("size-used")/1024; $aggr_vol_alloc = $aggrinfo->child_get_string("size-volume-allocated")/1024; $aggr_vol_used = $aggrinfo->child_get_string("size-volume-used")/1024; if ($verbose) { print("aggr_size: ". byteconv($aggr_size) ."\n"); print("aggr_used: ". byteconv($aggr_used) ."\n"); print("aggr_free: ". byteconv($aggr_free) ."\n"); print("aggr_vol_allocated: ". byteconv($aggr_vol_alloc) ."\n"); print("aggr_vol_used: ". byteconv($aggr_vol_used) ."\n"); } } $aggri{"aggr_size"} = $aggr_size; $aggri{"aggr_free"} = $aggr_free; $aggri{"aggr_used"} = $aggr_used; $aggri{"aggr_vol_alloc"} = $aggr_vol_alloc; $aggri{"aggr_vol_used"} = $aggr_vol_used; return (\%aggri); } sub snaplistinfo { my $session = $_[0]; my $vol = $_[1]; my $out; my $status; my @result; my $snapinfo; my $snap_used; my $snap_cumulative; my %snapi = (); $out = $session->invoke("snapshot-list-info", "target-type", "volume", "target-name", $vol); if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } $status = $out->child_get("snapshots"); if ($status->children_get() eq 0) { # snapreserve might be 0 } elsif ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } foreach $snapinfo (@result){ $snap_used += $snapinfo->child_get_string("total"); if ($verbose) { print("snap_name: ". $snapinfo->child_get_string("name") ."\n"); print("snap_size: ". byteconv($snapinfo->child_get_string("total")) ."\n"); print("snap_used: " . byteconv($snap_used) ."\n"); } } # Another fix for API misbehaviour. If there are no snapshots inside # a volume, the API returns nothing ... if ( !$snap_used ) { $snap_used = "0" }; $snapi{"snap_total"} = $snap_used; return (\%snapi); } sub vollistinfo { my $session = $_[0]; my $vol = $_[1]; my $out; my $status; my @result; my $volinfo; my %voli; my $vol_size_avail; my $vol_size_used; my $vol_size_total; my $vol_snap_reserve; $out = $session->invoke("volume-list-info", "volume", $vol); if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } $status = $out->child_get("volumes"); if ($status->children_get() eq 0) { # No output $plugin->nagios_exit(UNKNOWN, "FlexVol not found."); } elsif ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } # Get the total size used in this volume for luns foreach $volinfo (@result){ if ($verbose) { print("vol-size-avail: " . byteconv($volinfo->child_get_string("size-available")/1024) ."\n"); print("vol-size-used: " . byteconv($volinfo->child_get_string("size-used")/1024) ."\n"); print("vol-size-total: " . byteconv($volinfo->child_get_string("size-total")/1024) ."\n"); print("snapshot-blocks-reserved: " . byteconv($volinfo->child_get_string("snapshot-blocks-reserved")) ."\n"); print("snapshot-percent-reserved: " . $volinfo->child_get_string("snapshot-percent-reserved") ."\n"); } $vol_size_avail = $volinfo->child_get_string("size-available")/1024; $vol_size_used = $volinfo->child_get_string("size-used")/1024; $vol_size_total = $volinfo->child_get_string("size-total")/1024; $vol_snap_reserve = $volinfo->child_get_string("snapshot-blocks-reserved"); } $voli{"vol_size_avail"} = $vol_size_avail; $voli{"vol_size_used"} = $vol_size_used; $voli{"vol_size_total"} = $vol_size_total; $voli{"vol_snap_reserve"} = $vol_snap_reserve; return (\%voli); } sub lunlistinfo { my $session = $_[0]; my $vol = $_[1]; my $out; my $status; my @result; my $luninfo; my $lunsize_total; my $lunsize_used; my %luni = (); $out = $session->invoke("lun-list-info", "volume-name", $vol); if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } $status = $out->child_get("luns"); if ($status->children_get() eq 0) { # No output $plugin->nagios_exit(UNKNOWN, "FlexVol not found."); } elsif ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } # Get the total size used in this volume for luns foreach $luninfo (@result){ if ($verbose) { print("alignment: " . $luninfo->child_get_string("alignment") ."\n"); print("mapped: " . $luninfo->child_get_string("mapped") ."\n"); print("online: " . $luninfo->child_get_string("online") ."\n"); print("lun-size: " . byteconv($luninfo->child_get_string("size")/1024) ."\n"); print("lun-size-used: " . byteconv($luninfo->child_get_string("size-used")/1024) ."\n"); } $lunsize_total += $luninfo->child_get_string("size")/1024; $lunsize_used += $luninfo->child_get_string("size-used")/1024; } if ( $lunsize_used > $lunsize_total ) { my $tmp_used = $lunsize_used; my $tmp_total = $lunsize_total; if ($verbose) { print("lun-size(rewritten): ". byteconv($tmp_total) ."\n"); print("lun-size-used(rewritten): ". byteconv($tmp_used) ."\n"); } $lunsize_total = $tmp_used; $lunsize_used = $tmp_total; } $luni{"lun_size_total"} = $lunsize_total; $luni{"lun_size_used"} = $lunsize_used; $luni{"lun_size_free"} = $lunsize_total - $lunsize_used; return (\%luni); } sub snapvaultinfo { my $session = $_[0]; my $vol = $_[1]; # Define all variables used in this sub-routine as local thus avoiding # variable clashing and other - potential dangerous stuff my $out; my $status; my @result; my $sv_state; my $sv_status; my $sv_progress; my $sv_lag_time; my $sv_error; my $svinfo; my %svi = (); # Run the API command with the full vol-path constructed as /vol/$flexvol/sv $out = $session->invoke("snapvault-primary-get-relationship-status", "system-path", "/vol/". $vol ."/sv"); # If results_status equals failed, die. if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } # Get the API status element $status = $out->child_get("status"); # Die if children_get equals 0, otherwise fill the array if ($status->children_get() eq 0) { $plugin->nagios_exit(UNKNOWN, "FlexVol not found."); } elsif ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } # Walk through each array element (there should only be one, as we # explicitly selected only a single volume) foreach $svinfo (@result){ $sv_state = $svinfo->child_get_string("state"); $sv_status = $svinfo->child_get_string("status"); $sv_progress = $svinfo->child_get_string("transfer-progress"); $sv_lag_time = $svinfo->child_get_string("lag-time"); $sv_error = $svinfo->child_get_string("current-transfer-error"); } # Sadly the API isn't written that well ... if there is no current-transfer-error # the whole element doesn't exist. So in order that we get through 'use strict' # we need a small hack. if ( !$sv_error ) { $sv_error = "none" }; if ( !$sv_progress ) { $sv_progress = "none" }; if ( !$sv_lag_time ) { $sv_lag_time = 0 }; if ( $verbose ) { print("sv_state: $sv_state\n"); print("sv_status: $sv_status\n"); print("sv_lag-time: ". $sv_lag_time ."s\n"); print("sv_progress: $sv_progress\n"); print("sv_transfer-error: $sv_error\n"); } # Add the below values as hash elements $svi{"sv_state"} = $sv_state; $svi{"sv_status"} = $sv_status; $svi{"sv_progress"} = $sv_progress; $svi{"sv_lag_time"} = $sv_lag_time; $svi{"sv_error"} = $sv_error; # Return the hash return (\%svi); } sub snapmirrorinfo { my $session = $_[0]; my $vol = $_[1]; # Define all variables used in this sub-routine as local thus avoiding # variable clashing and other - potential dangerous stuff my $out; my $status; my @result; my $sm_state; my $sm_status; my $sm_progress; my $sm_lag_time; my $sm_error; my $sminfo; my %smi = (); # Run the API command with the FlexVol name $out = $session->invoke("snapmirror-get-status", "location", $vol); # If results_status equals failed, die. if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } # Get the API status element $status = $out->child_get("snapmirror-status"); # Die if $status is unset, otherwise fill the array if ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } # Walk through each array element (there should only be one, as we # explicitly selected only a single volume) foreach $sminfo (@result){ $sm_state = $sminfo->child_get_string("state"); $sm_status = $sminfo->child_get_string("status"); $sm_progress = $sminfo->child_get_string("transfer-progress"); $sm_lag_time = $sminfo->child_get_string("lag-time"); $sm_error = $sminfo->child_get_string("current-transfer-error"); } # Sadly the API isn't written that well ... if there is no current-transfer-error # the whole element doesn't exist. So in order that we get through 'use strict' # we need a small hack. if ( !$sm_error ) { $sm_error = "none" }; if ( !$sm_progress ) { $sm_progress = 0 }; if ( $verbose ) { print("sm_state: $sm_state\n"); print("sm_status: $sm_status\n"); print("sm_lag-time: ". $sm_lag_time ."s\n"); print("sm_progress: $sm_progress\n"); print("sm_transfer-error: $sm_error\n"); } # Add the below values as hash elements $smi{"sm_state"} = $sm_state; $smi{"sm_status"} = $sm_status; $smi{"sm_progress"} = $sm_progress; $smi{"sm_lag_time"} = $sm_lag_time; $smi{"sm_error"} = $sm_error; # Return the hash return (\%smi); } sub sisinfo { my $session = $_[0]; my $vol = $_[1]; # Define all variables used in this sub-routine as local thus avoiding # variable clashing and other - potential dangerous stuff my $out; my $status; my @result; my $sis_state; my $sis_changelog_usage; my $sis_stale_fingerprint; my $sis_last_operation_end; my $sis_last_success_operation; my $sisinfo; my %sis = (); # Run the API command with the FlexVol name $out = $session->invoke("sis-status", "path", '/vol/'.$vol, "verbose", "true"); # If results_status equals failed, die. if ($out->results_status() eq "failed") { $plugin->nagios_exit(UNKNOWN, $out->results_reason()); } # Get the API status element $status = $out->child_get("sis-object"); # Die if $status is unset, otherwise fill the array if ($status) { @result = $status->children_get(); } else { $plugin->nagios_exit(UNKNOWN, "Unable to process result."); } # Walk through each array element (there should only be one, as we # explicitly selected only a single volume) foreach $sisinfo (@result){ $sis_state = $sisinfo->child_get_string("state"); $sis_stale_fingerprint = $sisinfo->child_get_string("stale-fingerprint-percentage"); $sis_changelog_usage = $sisinfo->child_get_string("changelog-used-percent"); $sis_last_operation_end = $sisinfo->child_get_string("last-operation-end-timestamp"); $sis_last_success_operation = $sisinfo->child_get_string("last-success-operation-end-timestamp"); } if ( $verbose ) { print("sis_state $sis_state\n"); print("sis_changelog_usage $sis_changelog_usage\n"); print("sis_stale_fingerprint $sis_stale_fingerprint\n"); print("sis_last_operation_end ".scalar(localtime($sis_last_operation_end))."\n"); print("sis_last_success_operation ".scalar(localtime($sis_last_success_operation))."\n"); print("timestamps:\n"); print("sis_last_operation_end: $sis_last_operation_end\n"); print("sis_last_success_operation: $sis_last_success_operation\n"); print("current_time: ".time."\n"); } # Add the below values as hash elements $sis{"sis_state"} = $sis_state; $sis{"sis_changelog_usage"} = $sis_changelog_usage; $sis{"sis_stale_fingerprint"} = $sis_stale_fingerprint; $sis{"sis_last_operation_end"} = $sis_last_operation_end; $sis{"sis_last_success_operation"} = $sis_last_success_operation; # Return the hash return (\%sis); } if ( $mode eq "aggregate" ) { # Get the aggregate information my $info = aggrspaceinfo($filer, $aggregate); my $aggr_size = $info->{"aggr_size"}; my $aggr_free = $info->{"aggr_free"}; my $aggr_used = $info->{"aggr_used"}; my $aggr_vol_alloc = $info->{"aggr_vol_alloc"}; my $aggr_vol_used = $info->{"aggr_vol_used"}; $plugin->set_thresholds( warning => $warning, critical => $critical, ); $plugin->add_perfdata( label => "aggr_size", value => $aggr_size, uom => 'KB', ); $plugin->add_perfdata( label => "aggr_free", value => $aggr_free, uom => 'KB', ); $plugin->add_perfdata( label => "aggr_used", value => $aggr_used, uom => 'KB', ); $plugin->add_perfdata( label => "aggr_vol_alloc", value => $aggr_vol_alloc, uom => 'KB', ); # Calculate the warning threshold if (defined $warning) { $warning = sprintf "%.0f", $aggr_size / 100 * $warning; if ($verbose) { print("warning: ". $warning ."\n") }; } # Calculate the critical threshold if (defined $critical) { $critical = sprintf "%.0f", $aggr_size / 100 * $critical; if ($verbose) { print("critical: ". $critical ."\n") }; } if ( defined $warning && defined $critical ) { if ( ($aggr_used > $warning) && ($aggr_used < $critical) ) { $plugin->nagios_exit(WARNING, "Aggregate ". $aggregate ." has grown above the defined WARNING threshold (". byteconv($warning) .")."); } if ( ($aggr_used > $warning) && ($aggr_used > $critical) ) { $plugin->nagios_exit(CRITICAL, "Aggregate ". $aggregate ." has grown above the defined CRITICAL threshold (". byteconv($warning) .")."); } if ( ($critical > $aggr_used) && ($warning > $aggr_used) && ($aggr_size > $aggr_used) ) { $plugin->nagios_exit(OK, "Aggregate ". $aggregate ." is ok."); } } else { # Check the volume allocation if ( ($aggr_vol_alloc > $aggr_size) && ($aggr_vol_used < $aggr_size) ) { $plugin->nagios_exit(WARNING, "Aggregate ". $aggregate ." is overcommited, but has enough free space to accomodate all volumes for now."); } if ( ($aggr_vol_alloc < $aggr_vol_used) || ($aggr_size > $aggr_used) ) { $plugin->nagios_exit(OK, "Aggregate ". $aggregate ." is ok."); } } } elsif ( $mode eq "lunspace" ) { # Get a list of all luns and sum them up # Get the snapreserve my $luns = lunlistinfo($filer, $flexvol); my $vols = vollistinfo($filer, $flexvol); my $snap = snaplistinfo($filer, $flexvol); # lun info my $lun_avail = $luns->{"lun_size_free"}; my $lun_used = $luns->{"lun_size_used"}; my $lun_total = $luns->{"lun_size_total"}; # vol info (Data Space) my $vol_avail = $vols->{"vol_size_avail"}; my $vol_used = $vols->{"vol_size_used"}; my $vol_total = $vols->{"vol_size_total"}; # snap info (Snapshot Reserve) my $snap_avail = $vols->{"vol_snap_reserve"} - $snap->{"snap_total"}; my $snap_used = $snap->{"snap_total"}; my $snap_total = $vols->{"vol_snap_reserve"}; # flex info my $flex_used = $vol_used + $snap_used; my $flex_total = $vol_total + $snap_total; my $flex_avail = $flex_total - $flex_used; $plugin->add_perfdata( label => "lun_total", value => $lun_total, uom => 'KB', ); $plugin->add_perfdata( label => "lun_used", value => $lun_used, uom => 'KB', ); $plugin->add_perfdata( label => "lun_avail", value => $lun_avail, uom => 'KB', ); $plugin->add_perfdata( label => "vol_total", value => $vol_total, uom => 'KB', ); $plugin->add_perfdata( label => "vol_used", value => $vol_used, uom => 'KB', ); $plugin->add_perfdata( label => "vol_avail", value => $vol_avail, uom => 'KB', ); $plugin->add_perfdata( label => "flex_total", value => $flex_total, uom => 'KB', ); $plugin->add_perfdata( label => "flex_used", value => $flex_used, uom => 'KB', ); $plugin->add_perfdata( label => "flex_avail", value => $flex_avail, uom => 'KB', ); $plugin->add_perfdata( label => "snap_total", value => $snap_total, uom => 'KB', ); $plugin->add_perfdata( label => "snap_used", value => $snap_used, uom => 'KB', threshold => $plugin->threshold, ); $plugin->add_perfdata( label => "snap_avail", value => $snap_avail, uom => 'KB', threshold => $plugin->threshold, ); # Only consider snapshot reserve stuff if it is above 0 if ( $snap_total > 0 ) { # FlexVol still has space left if ( ($lun_used + $snap_used) < $flex_total ) { if ( $snap_used >= $snap_total && $lun_used < $lun_total ) { $plugin->nagios_exit(WARNING, "Snapshot Reserve lending space from Data space. Missing capacity: ". byteconv($snap_used-$snap_total)); } if ( $lun_used >= $lun_total && $snap_used < $snap_total ) { $plugin->nagios_exit(WARNING, "Data Space lending space from Snapshot Reserve. Missing capacity: ". byteconv($lun_used-$lun_total)); } if ( $lun_used < $lun_total && $snap_used < $snap_total ) { $plugin->nagios_exit(OK, "Data Space (". byteconv($lun_total) .") and Snapshot Reserve (". byteconv($snap_total) .") fit into FlexVol (". byteconv($flex_total). "). "); } } else { $plugin->nagios_exit(CRITICAL, "Data Space and Snapshot Reserve are out out space. Missing capacity (Data): ". byteconv($lun_used-$lun_total) ." (Snap): ". byteconv($snap_used-$snap_total)); } } if ( $snap_total == 0 ) { # FlexVol still has space left if ( $lun_used < $flex_total && $lun_used < $lun_total ) { $plugin->nagios_exit(OK, "Data Space (". byteconv($lun_total) .") and Snapshot Reserve (". byteconv($snap_total) .") fit into FlexVol (". byteconv($flex_total). "). "); } else { $plugin->nagios_exit(CRITICAL, "Data Space and Snapshot Reserve are out out space. Missing capacity (Data): ". byteconv($lun_used-$lun_total) ." (Snap): ". byteconv($snap_used-$snap_total)); } } } elsif ( $mode eq "volspace" ) { my $vols = vollistinfo($filer, $flexvol); # Just get the volume size and the free space left # vol_size_avail: Free space inside the volume # vol_size_used: Used space inside the volume my $vol_size_a = sprintf "%.0f", $vols->{"vol_size_avail"}; my $vol_size_u = sprintf "%.0f", $vols->{"vol_size_used"}; my $vol_size_t = sprintf "%.0f", $vol_size_a + $vol_size_u; if ( defined $warning && defined $critical) { $warning = sprintf "%.0f", $vol_size_t / 100 * $warning; $critical = sprintf "%.0f", $vol_size_t / 100 * $critical; if ($verbose) { print("warning: ". $warning ."\n") }; if ($verbose) { print("critical: ". $critical ."\n") }; $plugin->set_thresholds( warning => $warning, critical => $critical, ); $plugin->add_perfdata( label => "volspace_used", value => $vol_size_u, uom => 'KB', ); $plugin->add_perfdata( label => "volspace_total", value => $vol_size_t, uom => 'KB', threshold => $plugin->threshold, ); $plugin->nagios_exit($plugin->check_threshold($vol_size_u), "FlexVol remaining space: ". byteconv($vol_size_a)); } else { $plugin->nagios_exit(UNKNOWN, "You need warning and critical to use the volspace mode."); } } elsif ( $mode eq "snapreserve" ) { my $vols = vollistinfo($filer, $flexvol); my $snap = snaplistinfo($filer, $flexvol); # Get the snapreserve and the used snapreserve my $snap_total = $vols->{"vol_snap_reserve"}; my $snap_used = $snap->{"snap_total"}; my $snap_avail = $vols->{"vol_snap_reserve"} - $snap->{"snap_total"}; my $vol_total = $vols->{"vol_size_total"}; my $vol_used = $vols->{"vol_size_used"}; my $vol_avail = $vols->{"vol_size_avail"}; if ( defined $warning && defined $critical) { $warning = sprintf "%.0f", $snap_total / 100 * $warning; $critical = sprintf "%.0f", $snap_total / 100 * $critical; if ($verbose) { print("warning: ". $warning ."\n"); print("critical: ". $critical ."\n"); } $plugin->set_thresholds( warning => $warning, critical => $critical, ); $plugin->add_perfdata( label => "snapreserve_total", value => $snap_total, uom => 'KB', ); $plugin->add_perfdata( label => "snapreserve_used", value => $snap_used, uom => 'KB', threshold => $plugin->threshold, ); if ( $snap_total > 0 ) { my $snap_percent = sprintf "%.0f", $snap_used / $snap_total * 100; $plugin->nagios_exit($plugin->check_threshold($snap_used), "FlexVol Snap Reserve used: ". byteconv($snap_used). " (". $snap_percent ."%)"); } else { $plugin->nagios_exit($plugin->check_threshold($snap_used), "FlexVol Snap Reserve used: ". byteconv($snap_used)); } } else { $plugin->add_perfdata( label => "snapreserve_total", value => $snap_total, uom => 'KB', ); $plugin->add_perfdata( label => "snapreserve_used", value => $snap_used, uom => 'KB', ); if ( $vol_used < $vol_total && $snap_used > $snap_total ) { $plugin->nagios_exit(WARNING, "Snapshots are lending space from data space (Used: ". byteconv($snap_used) ." vs. Reserve: ". byteconv($snap_total) .")"); } elsif ( $vol_used > $vol_total && $snap_used > $snap_total ) { $plugin->nagios_exit(CRITICAL, "Snapshots are lending space from data space, the volume is out of space and resulted in offline luns!"); } else { $plugin->nagios_exit(OK, "Snap reserve (". byteconv($snap_total) .") of FlexVol $flexvol is OK."); } } } elsif ( $mode eq "snapvault" ) { my $sv = snapvaultinfo($filer, $flexvol); if ( defined $warning ) { $warning = $warning*60*60 }; if ( defined $critical ) { $critical = $critical*60*60 }; my $sv_lag_time = $sv->{"sv_lag_time"}; my $sv_state = $sv->{"sv_state"}; my $sv_status = $sv->{"sv_status"}; my $sv_progress = $sv->{"sv_progress"}; my $sv_error = $sv->{"sv_error"}; if ( defined $warning && defined $critical ) { $plugin->set_thresholds( warning => $warning, critical => $critical, ); } $plugin->add_perfdata( label => "snapvault_lag_time", value => $sv_lag_time, uom => 's', threshold => $plugin->threshold, ); if ($sv_state eq "snapvaulted" && $sv_status eq "quiescing" && $sv_error eq "could not register source qtree information") { $plugin->nagios_exit(CRITICAL, "SnapVault in stuck in quiescing-state - no space left?"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "quiescing" && $sv_error eq "replication destination write failed: No space left on device") { $plugin->nagios_exit(CRITICAL, "SnapVault in stuck in quiescing-state - no space left!"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && $sv_error eq "replication destination failed to create checksum storage") { $plugin->nagios_exit(CRITICAL, "SnapVault in stuck in quiescing-state"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && $sv_error eq "process was aborted") { $plugin->nagios_exit(CRITICAL, "SnapVault transfer was aborted"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && $sv_error eq "destination requested snapshot that does not exist on the source") { $plugin->nagios_exit(CRITICAL, "SnapVault was unable to transfer a snapshot - none found. Possible configuration error?"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && ($sv_error eq "none" || $sv_error eq "source contains no new data; suspending transfer to destination")) { if(!$warning && !$critical) { $plugin->nagios_exit(OK, "SnapVault Age: ". timeconv($sv_lag_time)); } else { if ($sv_lag_time >= $critical) { $plugin->nagios_exit(CRITICAL, "SnapVault Age: ". timeconv($sv_lag_time)); } elsif ($sv_lag_time < $critical && $sv_lag_time >= $warning) { $plugin->nagios_exit(WARNING, "SnapVault Age: ". timeconv($sv_lag_time)); } else { $plugin->nagios_exit(OK, "SnapVault Age: ". timeconv($sv_lag_time)); } } } elsif ($sv_state eq "uninitialized" && $sv_status eq "transferring") { $plugin->nagios_exit(OK, "SnapVault baseline transfer: ". byteconv($sv_progress)); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "transferring") { $plugin->nagios_exit(OK, "SnapVault update transfer: ". byteconv($sv_progress)); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && $sv_error eq "replication destination write failed: No space left on device" ) { $plugin->nagios_exit(CRITICAL, "SnapVault aborted: no space left!"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && $sv_error eq "could not register source qtree information" ) { $plugin->nagios_exit(CRITICAL, "SnapVault in stuck in quiescing-state - no space left?"); } elsif ($sv_state eq "snapvaulted" && $sv_status eq "idle" && $sv_error eq "transfer aborted because of network error: Connection reset by peer" ) { $plugin->nagios_exit(WARNING, "SnapVault transfer aborted, networking issues? - Age: ". timeconv($sv_lag_time)); } } elsif ( $mode eq "snapmirror" ) { my $sm = snapmirrorinfo($filer, $flexvol); if ( defined $warning ) { $warning = $warning*60*60 }; if ( defined $critical ) { $critical = $critical*60*60 }; my $sm_lag_time = $sm->{"sm_lag_time"}; my $sm_state = $sm->{"sm_state"}; my $sm_status = $sm->{"sm_status"}; my $sm_progress = $sm->{"sm_progress"}; my $sm_error = $sm->{"sm_error"}; if ( defined $warning && defined $critical ) { $plugin->set_thresholds( warning => $warning, critical => $critical, ); } $plugin->add_perfdata( label => "snapmirror_lag_time", value => $sm_lag_time, uom => 's', threshold => $plugin->threshold, ); if ($sm_state eq "snapmirrored" && $sm_status eq "quiescing" && $sm_error eq "could not register source qtree information") { $plugin->nagios_exit(CRITICAL, "SnapMirror is stuck in quiescing-state - no space left?"); } elsif ($sm_state eq "snapmirrored" && $sm_status eq "idle" && $sm_error eq "destination requested snapshot that does not exist on the source") { $plugin->nagios_exit(CRITICAL, "SnapMirror was unable to transfer a snapshot - none found. Possible configuration error?"); } elsif ($sm_state eq "unknown" && $sm_status eq "idle") { $plugin->nagios_exit(WARNING, "SnapMirror orphan found. Should be removed!"); } elsif ($sm_state eq "unknown" && $sm_status eq "idle with restart checkpoint" && $sm_error eq "destination is offline, is restricted, or does not exist") { $plugin->nagios_exit(CRITICAL, "SnapMirror: Destination volume offline or missing"); } elsif ( ($sm_state eq "snapmirrored" || $sm_state eq "source") && $sm_status eq "idle" && ($sm_error eq "none" || $sm_error eq "Nothing to transfer")) { if(!$warning && !$critical) { $plugin->nagios_exit(OK, "SnapMirror Age: ". timeconv($sm_lag_time)); } else { if ($sm_lag_time >= $critical) { $plugin->nagios_exit(CRITICAL, "SnapMirror Age: ". timeconv($sm_lag_time)); } elsif ($sm_lag_time < $critical && $sm_lag_time >= $warning) { $plugin->nagios_exit(WARNING, "SnapMirror Age: ". timeconv($sm_lag_time)); } else { $plugin->nagios_exit(OK, "SnapMirror Age: ". timeconv($sm_lag_time)); } } } elsif ($sm_state eq "uninitialized" && $sm_status eq "transferring") { $plugin->nagios_exit(OK, "SnapMirror baseline transfer: ". byteconv($sm_progress)); } elsif ( ($sm_state eq "snapmirrored" || $sm_state eq "source") && $sm_status eq "transferring") { $plugin->nagios_exit(OK, "SnapMirror update transfer: ". byteconv($sm_progress)); } elsif ($sm_state eq "snapmirrored" && $sm_status eq "pending") { $plugin->nagios_exit(OK, "SnapMirror update transfer pending"); } elsif ($sm_state eq "snapmirrored" && $sm_status eq "idle" && $sm_error eq "replication transfer failed to complete") { $plugin->nagios_exit(CRITICAL, "SnapMirror aborted the transfer!"); } elsif ($sm_state eq "snapmirrored" && $sm_status eq "pending" && $sm_error eq "destination volume too small; it must be equal to or larger than the source volume") { $plugin->nagios_exit(CRITICAL, "SnapMirror aborted due to no space left in FlexVol!"); } elsif ($sm_state eq "unknown" && $sm_status eq "pending with restart checkpoint" && $sm_error eq "volume is not online; cannot execute operation") { $plugin->nagios_exit(CRITICAL, "SnapMirror: Volume offline!"); } } elsif ( $mode eq "sis" ) { my $sis = sisinfo($filer, $flexvol); if ( defined $warning ) { $warning = $warning*24*60*60 }; if ( defined $critical ) { $critical = $critical*24*60*60 }; my $sis_state = $sis->{"sis_state"}; my $sis_changelog_usage = $sis->{"sis_changelog_usage"}; my $sis_stale_fingerprint = $sis->{"sis_stale_fingerprint"}; my $sis_last_operation_end = $sis->{"sis_last_operation_end"}; my $sis_last_success_operation = $sis->{"sis_last_success_operation"}; if ( defined $warning && defined $critical ) { $plugin->set_thresholds( warning => $warning, critical => $critical, ); } $plugin->add_perfdata( label => "sis_changelog_usage", value => $sis_changelog_usage, oum => '%' ); $plugin->add_perfdata( label => "sis_stale_fingerprint", value => $sis_stale_fingerprint, oum => '%' ); if ( $sis_state eq "Disabled" && $sis_changelog_usage gt 0 ) { $plugin->nagios_exit(CRITICAL, "SIS enabled, but no SIS run configured - see NetApp Bug-ID 533238"); } if ( $sis_state eq "Enabled" ) { # Sadly, even if a SIS run is cancelled, the # last-operation-state returns 'success'. So we can't really # use it to check the state of the last SIS run. if ( $sis_last_success_operation < (time - $critical) ) { $plugin->nagios_exit(CRITICAL, "SIS last operation failed. Last success: ". scalar(localtime($sis_last_success_operation))); } elsif ( $sis_last_success_operation < (time - $warning) ) { $plugin->nagios_exit(WARNING, "SIS last operation failed. Last success: ". scalar(localtime($sis_last_success_operation))); } else { if ( $sis_stale_fingerprint > 60 ) { $plugin->nagios_exit(WARNING, "SIS ran successful, however the Stale Fingerprints is above 60 percent."); } elsif ( $sis_changelog_usage > 60 ) { $plugin->nagios_exit(WARNING, "SIS ran successful, however the ChangeLog usage is above 60 percent."); } else { $plugin->nagios_exit(OK, "SIS ran successful."); } } } } |
Very nice! My #1 check is
I watch a bunch of other things (like IOPS per protocol) but mostly for historical purposes. Generally if there is an actual problem with the filer this will pick it up.
Yeah, the global status is one of those things I am using additionally 🙂
Hi,
Like what you written but wondered if you had anything similar that did not require nagios that would simply monitor the snapmirror and restart a relationship if it dies.
Can you let me know.? Thanks
Phillip
Hi,
This script doesn’t works for me.
This error appears:
readline() on unopened filehandle S at /usr/local/lib/perl5/site_perl/5.10.1/NetApp/NaServer.pm line 467.
Could you send me the script?
Regards