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Measures reported by OraZFSPoolsTest
ZFS groups underlying storage devices into pools and filesystems, and LUNs (Logical Unit Number), allocate from this storage as needed. Storage is configured in pools that are characterized by their underlying data redundancy and provide space that is shared across all filesystems and LUNs. Each node can have any number of pools, and each pool can be assigned ownership independently in a cluster.
This test monitors the pools in the target storage system and for each pool, this test reports its status, used space, free space, and total space. This helps the administrator to analyze the requirement of space by either adding more space to the pool or by deleting unnecessary data from the pool.
Outputs of the test: One set of results for each Controller: Pool name of the Oracle ZFS Storage System being monitored.
Descriptor: Controller: Pool name
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| poolStatus |
Indicates the status of the pool. |
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The values reported by this measure and its numeric equivalent are mentioned in the table below:
| Measure Value |
Numeric Value |
| Offline |
0 |
| Other |
50 |
| Exported |
60 |
| Unavailable |
70 |
| Faulted |
80 |
| Degraded |
90 |
| Available |
100 |
Note:
By default, this measure reports the above-mentioned States while indicating the capacity of the pool of the Oracle ZFS storage component. However, in the graph of this measure, states will be represented using the corresponding numeric equivalents only.
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| poolUsedSpace |
Indicates the space used by this pool including data and snapshots. |
GB |
Ideally, the value of this measure should be low. If this value grows close to that of the Total Space measure, then you may consider adding more storage to the pool, or free up the space in the pool by deleting unnecessary data.
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| poolFreeSpace |
Indicates the amount of physical disk space available. |
GB |
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| poolTotalSpace |
Indicates the total space provided to this pool. |
GB |
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| poolUsedSpacePCT |
Indicates the space usage in percentage. |
Percent |
A value close to 100% indicates that the pool is currently running out of space.
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| poolFreeSpacePCT |
Indicates the percentage of physical disk space |
Percent |
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