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Measures reported by EMCPvMeVDiskStTest
A Vdisk is a group of disk drives configured with a RAID level. The EMC PowerVault ME storage system can have a maximum of 16 Vdisks per controller in a dual controller system for a total of 32 virtual disks. In a single controller system, the maximum is 32 virtual disks.
If a user to the storage system is unable to access data in the storage system, it could be because a faulty, degraded, critical, or simply, an offline Vdisk is holding the disk drive that contains the data being accessed. To be able to proactively detect such abnormalities and promptly initiate corrective action, administrators need to periodically check the health of each Vdisk in the EMC PowerVault ME storage system. This is where the EMCPvMeVDiskStTest helps. This test reports the current operational status and the overall health of each Vdisk in the target storage system, so that administrators are instantly intimated of the abnormal state of a Vdisk and are enabled to rapidly initiate remedial action, so that critical data always remains accessible to users.
Outputs of the test : One set of results for each Vdisk being monitored
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| status |
Indicates the current status of this Vdisk. |
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The values reported by this measure and its numeric equivalents are mentioned in the table below:
| Measure Value |
Numeric Value |
| Offline |
0 |
| Critical |
1 |
| Fault tolerant with down disks |
2 |
| Quarantined critical |
3 |
| Quarantined offline |
4 |
| Quarantined with down disks |
5 |
| The vdisk is stopped |
6 |
| Unknown |
7 |
| Fault tolerant and online |
8 |
| The vdisk is online |
9 |
Note:
By default, this measure reports the above-mentioned Measure Values only. However, in the graph of this measure, the Vdisk status will be represented using the corresponding numeric equivalents only. |
| health |
Indicates the overall health of this vdisk. |
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The values reported by this measure and its numeric equivalents are mentioned in the table below:
| Measure Value |
Numeric Value |
| Fault |
0 |
| Degraded |
1 |
| OK |
2 |
| Unknown |
3 |
Note:
By default, this measure reports the above-mentioned States while indicating the health of this vdisk. 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 name of the vdisk and the primary reason why the health state of that vdisk is what it is. |
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