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単一/少数のディスクの利用率が高いため、レイテンシが高く、ディスクエラーが発生します

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Category:
ontap-9
Specialty:
perf<a>2009370404</a>
Last Updated:

環境

  • ONTAP 9
  • FASシステム

問題

  • さまざまなボリュームから高いレイテンシを報告する複数のアラート/ Eメールが届いています:
  • 7476 Sep 20 08:19:24 hdisk68 P SC_DISK_ERR7 path 0 path failure; READ(16) (0000000102206B,00000200) command timeout 7476 Sep 20 08:19:24 hdisk68 P SC_DISK_ERR7 path 0 path failure; READ(16) (0000000102206B,00000200) command timeout Oct 5 08:21:42 Message forwarded from fb-lp-tsm01: root: ERRPT: DE3B8540 1005082122 P H hdisk53 PATH HAS FAILED
 
2009370404 - Alert.png
 
 
2009370404- alert1.pngにE-メールを送信します
 
  • statit コマンドは、単一ディスクの高使用率をレポートします。

Cluster::*> node run -node node1 -command statit -e
...
disk        ut%  xfers  ureads--chain-usecs writes--chain-usecs cpreads-chain-usecs greads--chain-usecs gwrites-chain-usecs
/aggr1_node1/plex0/rg2:
0d.23.18      25  69.19   0.01   2.00  2033  31.50  60.67   175  37.69  51.19   169   0.00   ....    .   0.00   ....    .
0a.21.16      24  69.77   0.01   2.00  6964  32.11  59.56   194  37.66  51.18   90   0.00   ....    .   0.00   ....    .
0d.22.17      57 231.26  133.56   5.45  2075  26.91  29.41   573  70.79   9.87   641   0.00   ....    .   0.00   ....    .
0d.23.22      57 230.68  132.96   5.46  1845  26.83  29.56   646  70.90   9.74   604   0.00   ....    .   0.00   ....    .
0d.23.13      95 295.63  198.16   4.10  5472  26.83  29.76  1371  70.63   9.91  1975   0.01   ....    .   0.00   ....    .
0d.22.18      57 231.26  133.55   5.38  2080  26.84  29.60   561  70.86   9.73   634   0.00   ....    .   0.00   ....    .
0a.20.18      57 231.69  133.54   5.42  1846  27.00  29.46   647  71.15   9.78   608   0.00   ....    .   0.00   ....    .
0a.20.16      57 233.00  134.49   5.48  1879  27.08  30.09   634  71.43   9.83   594   0.00   ....    .   0.00   ....    .
0d.22.19      57 231.98  134.18   5.41  2099  26.87  29.67   567  70.93   9.87   646   0.00   ....    .   0.00   ....    .

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