在实施集群交换机更换时、IO暂时暂停

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Category:: ontap-9

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适用场景

ONTAP 9
Cisco Nexus 9336C-FX2

问题描述

vdbench 和sysstat 显示在步骤14的集群交换机更换操作步骤期间，IO暂时挂起。

vdbench

[2025-03-07 16:42:27.027] 16:42:27.045 540 1958.00 15.30 8192 20.02 0.471 0.601 0.438 2.925 0.195 0.9 16.0 10.8 [2025-03-07 16:42:41.356] [2025-03-07 16:42:41.356] 3 07, 2025 interval i/o MB/sec bytes read resp read write resp resp queue cpu% cpu% [2025-03-07 16:42:41.356] rate 1024**2 i/o pct time resp resp max stddev depth sys+u sys [2025-03-07 16:42:41.356] 16:42:28.046 541 946.00 7.39 8192 19.77 0.428 0.497 0.411 3.656 0.136 113.4 7.8 4.1 [2025-03-07 16:42:41.356] 16:42:29.046 542 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 4.6 3.0 [2025-03-07 16:42:41.356] 16:42:30.046 543 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.0 4.6 2.6 [2025-03-07 16:42:41.357] 16:42:31.046 544 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.0 4.5 3.0 [2025-03-07 16:42:41.357] 16:42:32.049 545 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 255.9 6.0 2.5 [2025-03-07 16:42:41.384] 16:42:33.045 546 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.3 4.1 1.5 [2025-03-07 16:42:41.384] 16:42:34.045 547 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 255.6 6.0 3.0 [2025-03-07 16:42:41.384] 16:42:35.045 548 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 4.1 2.6 [2025-03-07 16:42:41.384] 16:42:36.045 549 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 255.9 5.0 2.5 [2025-03-07 16:42:41.384] 16:42:37.045 550 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 4.6 1.5 [2025-03-07 16:42:41.384] 16:42:38.045 551 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 255.8 4.6 2.5 [2025-03-07 16:42:41.413] 16:42:39.049 552 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 4.6 1.0 [2025-03-07 16:42:41.413] 16:42:40.045 553 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 4.6 2.5 [2025-03-07 16:42:41.413] 16:42:41.046 554 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 255.9 4.1 1.5 [2025-03-07 16:42:42.018] 16:42:42.045 555 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 3.1 1.5 [2025-03-07 16:42:43.016] 16:42:43.045 556 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 255.9 4.6 2.0 [2025-03-07 16:42:44.024] 16:42:44.045 557 0.00 0.00 0 0.00 0.000 0.000 0.000 0.000 0.000 256.1 4.6 3.1 [2025-03-07 16:42:45.030] 16:42:45.049 558 8624.00 67.38 8192 17.95 517.602 483.260 525.115 17170.839 2900.045 255.6 22.3 10.9

sysstat

::> system node run -node tststdt601 -command sysstat -u [2025-03-07 16:42:17.093] CPU Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP_Ty Disk [2025-03-07 16:42:17.093] ops/s in out read write read write age hit time [T--H--F--N--B--O--#--:] util [2025-03-07 16:42:27.592] 18% 1865 9670 5470 10243 193013 0 0 2 98% 60% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:29.083] 2% 0 4788 365 0 16 0 0 2 99% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:30.586] 1% 0 28 30 21 3896 0 0 2 100% 1% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:32.094] 4% 0 45 30 0 24 0 0 2 95% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:33.594] 2% 0 37 42 8 0 0 0 2 97% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:35.094] 2% 0 24 22 8 16 0 0 2 98% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:36.594] 6% 0 34 34 8 29 0 0 2 100% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:38.094] 3% 0 3 5 6445 33792 0 0 2 99% 16% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:39.581] 1% 0 23 24 16 16 0 0 2 98% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:41.082] 4% 134 196 75 464 3797 0 0 2 100% 2% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:42.595] 2% 12 1029 40 8 16 0 0 2 96% 0% 0--0--0--0--0--0--0--0 0% [2025-03-07 16:42:44.083] 1% 24 10 16 0 16 0 0 2 99% 0% 0--0--0--0--0--0--0--0 0%

在操作步骤期间、IO会通过直接路径