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SnapMirror 目标节点上的 CPU 利用率较高

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ontap-9
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perf
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适用场景

  • ONTAP 9
  • SnapMirror DP 关系 

问题描述 

  •  如果由于SnapMirror 作业正在进行中而导致CPU利用率较高、则会出现延迟。
  • 根据性能归档图、D刀片式服务器利用率的首要工作负载是WAFL扫描、WAFL CP、WAFL和SnapMirror。

  • 的输出 wafl scan status  显示了 一些扫描程序、例如Snap create摘要更新、块所有权计算和卷解扫(适用于SnapMirror)扫描。

  • 由于这是SnapMirror的目标、因此这些扫描程序是预期的。


::>system node run -node * -command wafl scan status

Node: xxxx
Volume xxx:
 Scan id           Type of scan    progress
  603754    snap create summary update    block 496578 of 676206
  604189   block ownership calculation   block 469500 of 676205
Volume xxy:
 Scan id           Type of scan    progress
  604343   snap create summary update   block 6452 of 45690
  604265    blocks used summary update    block 24304 of 45690

Volume abc:
 Scan id           Type of scan    progress
  604291    snap create summary update    block 7689 of 59397
  604234    blocks used summary update    block 13233 of 59397
    55       volume deswizzling   snap 366, inode 183826 of 33554416. level 1 of normal files. Totals: Normal files: L1:1798785/3219086468 L2:6755/3234086207 L3:3369/1298071658 L4:0/0    Inode file: L0:0/0 L1:0/0 L2:0/0 L3:0/0 L4:0/0

 

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