eG Monitoring
 

Measures reported by IbmStorwizeCanisterTest

The IBM Storwize V7000 solution consists of one or two control enclosures and, optionally, up to 18 expansion enclosures (and supports the intermixing of the different expansion enclosures). Within each enclosure are two canisters. Control enclosures contain two node canisters, and expansion enclosures contain two expansion canisters.

The expansion canister is a hardware unit that includes the serial-attached SCSI (SAS) interface hardware that enables the node hardware to use the drives of the expansion enclosure.

The node canister is a hardware unit that includes the node hardware, fabric and service interfaces, and serial-attached SCSI (SAS) expansion ports.

This test reveals the current status of each canister available in the enclosure of the IBM Storwize v7000 storage system, so that defective canisters can be promptly isolated and issues fixed.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
status Indicates the current status of this canister.   This measure can report any of the following values:

  • offline
  • online
  • degraded

    • The numeric values that correspond to the above-mentioned measure values are as follows:

    Measure Value Numeric Value Description
    offline 0 The canister could not be detected.
    online 1 The canister is present and working normally.
    degraded 2 The canister is present but not working normally.

    Note:

    By default, this measure reports the above-mentioned Measure Values while indicating the status of a canister. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.

    The detailed diagnosis of this measure if enabled, lists the type of the canister, the node ID and the name of the node to which the canister is attached.