1 title: NetApp Filers: Used space in Filesystem Using 32-Bit Counters
3 catalog: hw/storagehw/netapp
7 This check measures the usage of aggregates and volumes in a NetAPP filer.
8 As opposed to the check {df_netapp} this one is using {32bit counters}
9 which might overflow and give negative results!
10 Please use {df_netapp} instead of {df_netapp32} if your OnTAP version and
11 SNMP configuration supports it.
13 The usage is checked against a warning and a critical level.
14 If a snapshot reserve is configured, snapshot growth will affect
15 the volume usage just like normal data.
16 Snapshots will also be listed, if their size is non-zero.
18 As of version {1.1.9i9} Check_MK supports {trends}. This means that
19 the {df} check is now able to compute the {change} of the used space
20 over the time and can make a forecast into the future. It can estimate
21 the point of time where the filesystem will be full.
23 In the default configuration the check will compute the trend based on the
24 data of the last 24 hours. Similar like the CPU load this is done with
25 a logarithmic average that weights the more recent time more than time
26 farer away. Also data beyond the 24 hours will to some small degree be
27 reflected in the computation. The advantage of this algorithm is a more
28 precise prediction and a simpler implementation, which does not need any
29 access to any RRDs or similar storage.
31 Please note, that when a volume is started being monitored, then
32 the trend of the past is unknown and will be assumed to be {zero}. That means
33 that it will take at least one trend range of time until the trend approximately
37 The name of the aggregate or volume on the NetAPP filer.
40 df supports inventory. All filesystem the agent reports
41 will be inventorized except mount points listed in
42 {inventory_df_exclude_mountpoints} and filesystem types
43 listed in {inventory_df_exclude_fs}. The Windows agent
44 only reports fixed disks. The Linux agent reports filesystems
45 that have a size and are not of type smbfs, tmpfs, cifs or nfs.