NetApp Monitoring Blog


Knowledge and insights from developing monitoring plugins for NetApp

Category: Snapshots

Check for volumes snapshot-policy?

check_netapp_pro already provides a way to flag volumes which do not have snapshots at all. The check SnapshotLessVolume just looks for the size used by snapshots and if that size is equal to…

Snapshots-Check gets powerful filtering-parameters

The present version of the Snapshots-check already understood the filtering parameter –check_only=no_reserve|with_reserve (see also this post [German only]). Based on a customer request we implemented now the ability to add an additional filter…

SnapDrive troubles with Snapshots Check

If you are checking your filer with the Snapshots plugin, you may get an error like: Can’t call method “attr” on an undefined value at /opt/…/lib/nagios/plugins/check_netapp_pro/checks/Snapshots.pm line 289. The reason for this is,…

Filter check_only=with_luns|without_luns for SnapshotLessVolumes check

Wit the next release, SnapshotLessVolumes will receive the option ‑‑check_only=with_lun|without_lun. 7m filers can also use without_lun_7m. With this option you can limit the check to volumes with or without LUNs, regardless of any naming conventions.

Filter check_only=with_luns|without_luns für Check SnapshotLessVolumes

Der Check SnapshotLessVolumes bekommt mit dem nächsten Release die Option ‑‑check_only=with_lun|without_lun. Für 7m-Filer ist auch der Wert without_lun_7m möglich. Damit kann nun von einer Namenskonvention unabhängig gefiltert werden, ob Volumes mit oder ohne LUN vom…

SnapshotLessVolume replaces Snapshots – searching for volumes without snapshots

In an example (that has now been removed from our help page) we described how the snapshots check could be used with the metric number to find volumes that don’t have any snapshots. Unfortunately, this…

Neuer Check SnapshotLessVolume ersetzt Snapshots zur Suche nach Snapshot-losen Volumes

Laut einem Beispiel (das aus der Onlinehilfe inzwischen entfernt wurde) hätte der Check Snapshots mit der Metrik number verwendet werden können um Volumes zu finden, die keine Snapshots haben. Das war leider irreführend…

Monitoring disk usage of specific Snapshots

Snapshots can be used to monitor the disk usage of snapshots on a volume. Up until now, the check compared the sum of all snapshots on a volume to a threshold. The check is very…

Speicherbedarf einzelner Snapshots überwachen

Der Check Snapshots wird verwendet um den durch Snapshot-Kopien verbratenen Platz auf einem Volume zu überwachen. Bisher wurde dazu die Summe aller Snapshots auf einem Volume mit einem Schwellwert verglichen. Zahlreiche Optionen wie die…

Accelerating the cdot collector

After having received feedback from a client saying the cluster mode collector get_netapp-cm.pl needs up to 45 seconds or more to collect 4500 snapshots, we looked into possibilities to accelerate the getter. In previous versions we…

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