eG Monitoring
 

Measures reported by IbmStorwizeEncStsTest

Each IBM Storwize V7000 system has one or two (optional) control enclosures that contain node canisters, disk drives, and power supply units. If a control enclosure is not visible to the SAN, then users will not be able to access the storage system. This is why, administrators need to closely monitor the state of each enclosure, and ensure its continuous availability to the SAN. This can be achieved using the IbmStorwizeEncStsTest test.

This test monitors each enclosure and reports its current state and composition, so that administrators can be instantly alerted to the abnormal state of the enclosure.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
status Indicates the current status of this enclosure.   This measure reports the status of the enclosure as follows:

  • offline
  • online
  • degraded

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

    Measure Value Numeric Value Description
    offline 0 A managed or unmanaged enclosure is visible
    online 1 A managed enclosure is not visible, and other fields hold their last known values
    degraded 2 An enclosure is visible, but not down both strands

    Note:

    By default, this measure reports the above-mentioned Measure Values while indicating the status of the enclosure. However, the graph of this measure will be represented using the corresponding numeric equivalents of the States as mentioned in the table above.

    The detailed diagnosis of this measure if enabled, lists the type of the enclosure, the managed status of the enclosure, the IO group ID, the IO group name, the machine type and the serial number of the enclosure. This way, you can accurately determine the I/O groups that will be rendered inaccessible if an enclosure goes offline or is degraded.

    total_canisters Indicates the total number of canisters available in this enclosure. Number  
    online_canisters Indicates the number of canisters contained in this enclosure that are currently online. Number  
    total_PSUs Indicates the total number of power supply units available in this enclosure. Number  
    online_PSUs Indicates the number of power supply units contained in this enclosure that are currently online. Number  
    drive_slots Indicates the total number of slots that can accomodate drives in this enclosure. Number