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NetApp Response to Russia-Ukraine Cyber Threat
In response to the recent rise in cyber threat due to the Russian-Ukraine crisis, NetApp is actively monitoring the global security intelligence and updating our cybersecurity measures. We follow U.S. Federal Government guidance and remain on high alert. Customers are encouraged to monitor the Cybersecurity and Infrastructure Security (CISA) website for new information as it develops and remain on high alert.

ボリューム移動のカットオーバーフェーズ中にレイテンシが増加

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環境

ONTAP 9

問題

ストレージシステム上のすべてのボリュームで、このノード上のボリューム移動のカットオーバーフェーズ中に速度が低下します。 

:カットオーバーフェーズ中にクライアントと Filer の両方から影響を受けた 1 つのボリューム上にパフォーマンス統計が表示されます。 

注: ボリューム移動のカットオーバーフェーズを実施するボリュームではありません

VDbentch log11 18, 2020  interval i/o   MB/sec   bytes   read  resp    read   write    resp    resp  queue  cpu%  cpu%
            rate  1024**2   i/o    pct  time   resp    resp    max   stddev depth sys+u   sys

13:32:50.043  501   17260.00   269.69   16384  79.79   0.921   0.910   0.965   7.402   0.311  15.9  44.2  35.6
13:32:51.043  502   15972.00   249.56   16384  79.66   0.996   1.033   0.850   25.002   0.889  15.9  44.8  35.6
13:32:52.042  503   8553.00   133.64   16384  80.09   1.860   1.868   1.829   8.574   1.722  15.9  22.0  16.5
13:32:53.042  504   3407.00  53.23   16384  80.83  4.693  4.690   4.704   9.185   1.325  16.0   8.9   7.3
13:32:54.044  505   3351.00  52.36   16384  79.14  4.768  4.769   4.765   9.339   1.131  16.0  11.4   9.0
13:32:55.042  506   3406.00   53.22   16384  80.59  4.679  4.694   4.616   10.017   1.302  15.9  10.8   8.2
13:32:56.042  507   3339.00   52.17   16384  81.28  4.796   4.786   4.836   9.095   1.194  16.0  10.6   8.1
13:32:57.042  508   3399.00   53.11   16384  80.94  4.700  4.697   4.714   9.183   1.204  16.0   9.7   8.2
13:32:58.043  509   3570.00   55.78   16384  81.32  4.462   4.473   4.417   9.443   1.454  16.0  10.3   8.7
13:32:59.042  510   6971.00   108.92   16384  80.10  2.297  2.315   2.225   13.173   1.853  15.9  21.1  16.6
13:33:00.044  511   18303.00   285.98   16384  79.92   0.868   0.870   0.858   4.062   0.234  15.9  46.5  39.6
13:33:01.043  512   18439.00   288.11   16384  80.43   0.863   0.874   0.814   6.378   0.353  15.9  48.5  39.3
13:33:02.042  513   17853.00   278.95   16384  79.77   0.891   0.901   0.851   9.553   0.419  15.9  53.1  36.9

qos statistics volume latency show
2020/11/18 13:32:48 Workload       ID   Latency   Network   Cluster    Data    Disk   QoS Max   QoS Min    NVRAM    Cloud  FlexCache   SM Sync      VA
2020/11/18 13:32:48 --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
2020/11/18 13:32:48 volume2  51455   360.00us   261.00us     0ms   26.00us   69.00us     0ms     0ms    4.00us     0ms     0ms     0ms     0ms
2020/11/18 13:32:51 volume2  51455   372.00us   264.00us     0ms   28.00us   76.00us     0ms     0ms    4.00us     0ms     0ms     0ms     0ms
2020/11/18 13:32:54 volume2 51455  1004.00us   160.00us     0ms  682.00us  159.00us     0ms    0ms   3.00us     0ms    0ms    0ms    0ms
2020/11/18 13:32:57 volume2 51455    4.21ms   138.00us     0ms   3.95ms  122.00us     0ms    0ms   4.00us     0ms    0ms    0ms    0m
2020/11/18 13:33:00 volume2 51455    3.81ms   137.00us     0ms   3.54ms  127.00us     0ms    0ms   4.00us     0ms    0ms    0ms    0ms
2020/11/18 13:33:03 volume2  51455   366.00us   143.00us     0ms   128.00us   92.00us     0ms     0ms    3.00us     0ms     0ms     0ms     0ms
2020/11/18 13:33:06 volume2  51455   322.00us   132.00us     0ms   105.00us   82.00us     0ms     0ms    3.00us     0ms     0ms     0ms     0ms

 

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