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IOPS 低于预期时 CPU 利用率较高

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Category:
ontap-9
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适用场景

ONTAP 9

问题描述

  • CPU 利用率较高,但 IOPS 不高。
  • 系统正在提供的 IOPS 数低于预期。
 nodeshell> sysstat -x 1 CPU NFS CIFS Total Net kB/s SSD kB/s Cache CP CP_Ty CP_Ph HDD SSD FCP iSCSI FCP kB/s iSCSI kB/s in out read write hit time [T--H--F--N--B--O--#--:] [n--v--p--f] util util in out in out 87% 0 0 18865 27005 1437837 766806 36 59% 0% 0--0--0--0--0--0--0--0 0--0--0--0 0% 10% 0 18865 0 0 14153 1401718 91% 0 0 20361 54662 1411932 704124 12 59% 0% 0--0--0--0--0--0--0--0 0--0--0--0 0% 11% 0 20349 0 0 84279 1323838 86% 0 0 19373 67099 1362633 636356 36 56% 0% 0--0--0--0--0--0--0--0 0--0--0--0 0% 10% 0 19352 0 0 34314 1297262 83% 0 0 19373 45697 1341457 629160 0 58% 0% 0--0--0--0--0--0--0--0 0--0--0--0 0% 8% 0 19373 0 0 49332 1242115 87% 0 0 24721 41867 875967 592351 0 57% 0% 0--0--0--0--0--0--0--0 0--0--0--0 0% 11% 0 24721 0 0 64270 1178077 98% 0 0 34218 166166 1568906 606936 36 62% 0% 0--0--0--0--0--0--0--0 0--0--0--0 0% 20% 0 34215 0 0 142193 1089826 97% 0 0 22118 76337 668708 718314 62665 57% 99% 0--0--0--0--0--1--0--0 0--1--0--0 0% 19% 0 22118 0 0 61469 1141812 

 

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