The following information can be obtained.
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id: Drive IDs (uuid)
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readIOPS: Number of read operations per second [IOPS]
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writeIOPS: Number of write operations per second [IOPS]
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readTransferRate: Read transfer amount per second [MiB/sec]
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writeTransferRate: Write transfer amount per second [MiB/sec]
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responseTime: Average response time [msec]
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usage: Ratio of I/O operating time of the drive against elapsed time [%]
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Required role: Storage, RemoteCopy, Monitor, or Resource
REST API: GET /v1/objects/performances/drives
CLI: drive_performance_list
When the following operations or failures occur, drive access may occur asynchronously with I/O from the compute node. If the system load is high, the performance may be temporarily affected.
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Expanding storage pool
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Volume operations
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Storage node maintenance
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Adding and removing storage nodes
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Adding and removing drives
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Storage node failure
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Drive failure