Flash Cache故障导致多个聚合的CPS较长

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Category:: ontap-9

Specialty:: perf<a>2009年362420</a><a>用于翻译</a>

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适用场景

ONTAP 9
所有采用基于NVMe的闪存的FAS系统

问题描述

多个聚合的 CP时间较长：

Mon Nov 21 18:55:17 CST [AI-A: wafl_exempt08: wafl.cp.toolong:error]: Aggregate SATA_03 experienced a long CP.

Mon Nov 21 18:57:32 CST [AI-A: wafl_exempt11: wafl.cp.toolong:error]: Aggregate SATA_02 experienced a long CP.

Mon Nov 21 18:58:43 CST [AI-A: wafl_exempt03: wafl.cp.toolong:error]: Aggregate SATA_01 experienced a long CP.

外部缓存写入错误：

Tue Nov 08 02:00:11 CST [AI-A: wafl_exempt07: ems.engine.suppressed:debug]: Event 'extCache.io.writeError' suppressed 77 times in last 457317 seconds.

Tue Nov 08 02:00:11 CST [AI-A: wafl_exempt07: extCache.io.writeError:notice]: WAFL external cache I/O write error: Insertq_save: unable to alloc context chain, code 0

卡状态为 sysconfig -a 输出故障

slot 3: Flash Cache NVMe

Serial Number: S3K6NX0M200744

Part Number: 119-00329

Hardware Revision: A0

Firmware Version: NA01

Model Name: X3311A

Capacity: 1024 GB

Vendor Name: Samsung

State: failed

未观察到高延迟。