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CONAP-195770:从SSD介质错误中恢复可能会导致发生原因客户端IO延迟

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问题描述

当SSD返回多个带有介质的IOS或已恢复错误状态时、ONTAP可能会暂时使驱动器从RAID组脱机以修复介质错误。在此过程中、ONTAP可能会不必要地对驱动器重新加电、这可能会产生发生原因长时间客户端IO延迟、因为重新加电后、驱动器需要一些时间才能恢复。
EMS日志:
[?]  Mon Oct 21 08:38:25 +0900 [node1: scsi_cmdblk_strthr_admin: scsi.cmd.notReadyCondition:notice]: Disk device 0d.16.1: Device returns not yet ready: CDB 0x28:628b3180:0008: Sense Data SCSI:not ready- Drive spinning up (0x2- 0x4 0x1 0x0)(5970).
注:2/4/1 (0x2 - 0x4 0x1 0x0) 是标准SCSI检查条件。它表示逻辑单元正在准备就绪

 

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