添加磁盘架时延迟较长

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适用场景

ONTAP 9
DS224C

问题描述

热添加新磁盘架后、在短时间内实现高延迟(约80毫秒)(DS224C)
EMS日志、3个驱动器报告、 shm.threshold.agrsvIOCount. 同一磁盘架12上的其他驱动器没有任何延迟。

[?] Tue Jul 04 13:33:53 +0900 [t1-tnfsto-s02-node2: disk_server_0: shm.threshold.agrsvIOCount:notice]: Disk 5a.12.0 has exceeded 12 IOs which have latencies greater than the threshold.

[?] Tue Jul 04 13:33:58 +0900 [t1-tnfsto-s02-node2: disk_server_1: shm.threshold.agrsvIOCount:notice]: Disk 5a.12.2 has exceeded 12 IOs which have latencies greater than the threshold.

[?] Tue Jul 04 13:33:58 +0900 [t1-tnfsto-s02-node2: disk_server_0: shm.threshold.agrsvIOCount:notice]: Disk 5a.12.10 has exceeded 12 IOs which have latencies greater than the threshold.

磁盘架13的模块A和B上的固件版本不同

Shelf 13: DS224-12 Firmware rev. IOM12B A: 0120 IOM12B B: 0100