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由于DIMM降级、单个节点的性能较差且CPU使用率较高

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ontap-9
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perf<a>性能</a><a>延迟</a><a>内存</a><a>DIMM</a><a>2009668470</a>
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适用场景

  • ONTAP 9
  • AFF A400

问题描述

  • CPU高会导致一个节点性能不佳。
  • 数据聚合中的写入延迟较高。示例

Time         Node        Severity    Event
------------------- ---------------- ------------- ---------------------------
7/24/2023 18:33:25  node_name     ERROR      wafl.cp.toolong: Aggregate aggr_name experienced a long CP.
7/24/2023 18:15:22  node_name     ERROR      wafl.cp.toolong: Aggregate aggr_name experienced a long CP.

  • 发生崩溃后节点重新启动、并生成核心转储文件。示例

"process on cpu17 hung (telnet_0) for 5001 milliseconds! in SK process telnet_0 on release 9.10.1P12 (C"

  • DIMM模块中存在可更正的错误。示例

Number of correctable ECC since boot 60362216: Information about Correctable ECC: ECC error at DIMM-xx: CE-03-2106-18AEE039,ADDR 0x5959b3100,(Node(1), Memory controller(0), CH(0), DIMM(0), Rank(0), Bank Group(2), Bank(0x0), Row(0x52ad), Col(0x2c0))
Correctable Machine Check Error at CPU17 McBank7. SKL_IMC0 Error: STATUS<0xcc10000001010090> (...)

Number of correctable ECC since boot 60427752: Information about Correctable ECC: ECC error at DIMM-xx: CE-03-2106-18AEE039,ADDR 0x8698e9d00,(Node(1), Memory controller(0), CH(0), DIMM(0), Rank(1), Bank Group(0), Bank(0x0), Row(0x7d3f), Col(0x70))
Correctable Machine Check Error at CPU13 McBank7. SKL_IMC0 Error: STATUS<0xcc10000001010090> (...)

  • 已为该DIMM触发内存错误警报。示例

[node_name: mgwd: callhome.hm.alert.critical:debug]: Call home for Health Monitor process nphm: CriticalCECCCountMemErrAlert[DIMM-xx].

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