1 title: NetApp Filers: Used space and traffic of volumes
3 catalog: hw/storagehw/netapp
7 This check measures the usage of volumes. The usage
8 is checked against a warning and a critical level, which
9 can be specified in numerous ways.
11 {Trends:} This checks supports volume {trends}. This means that the {netapp_api_volumes} check
12 is able to compute the {change} of the used space over the time and can
13 make a forecast into the future. It can estimate the time when
14 the volume will be full.
16 In the default configuration the check will compute the trend based on the
17 data of the last 24 hours using a logarithmic average that gives more recent
18 data a higher weight. Also data beyond the 24 hours will to some small degree be
19 reflected in the computation. The advantage of this algorithm is a more
20 precise prediction and a simpler implementation, which does not need any
21 access to any RRDs or similar storage.
23 Please note that when a volume is started to be monitored,
24 the trend of the past is unknown and is assumed to be {zero}.
25 It will take at least one trend range of time until the trend
26 approximately reflects the reality.
28 You can also enable performance data for the traffic and latency
29 for specific protocols (global, nfs, cifs, san, fcp, iscsi) via the parameters
32 Name of the volume as defined in the system
35 All {local} volumes are automatically inventorized.