メインコンテンツまでスキップ

Azure CVOディスクのレイテンシを一部のディスクで確認

Views:
1
Visibility:
Public
Votes:
0
Category:
cloud-volumes-ontap-cvo
Specialty:
perf<a>2009835144</a>
Last Updated:

環境

  • ONTAP 9
  • CVO HA
  • Azure
  • ページブロブディスク

問題

  • DNS TTL値が正しく報告されないことがあります。
    • ページBLOBのAzureのベストプラクティスは60秒TTLです。
  • ディスクの利用率が100%と報告され、レイテンシが高くなります。
    • ノード上のディスクのサブセットまたはすべてのディスクを指定できます。
cluster::> set -privilege advanced Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel. Do you want to continue? {y|n}: y cluster::*> name-service cache hosts forward-lookup show -vserver <cluster_name> <--Make sure the SVM name matches cluster name before the prompt (::*> in this case) (vserver services name-service cache hosts forward-lookup show) IP Address IP Create Vserver Host Protocol Family Address Source Time TTL(sec) --------- -------- -------- ------- -------------- ------- ---------- -------- cluster pageblobhost.blob.core.windows.net Any Ipv4 dns 53050 20.1.2.3 11/28/ 2023 09:22:43 cluster pageblobhost.blob.core.windows.net Any Ipv4 dns 25462 20.1.2.3 11/28/ 2023 09:26:40 ... cluster::*> run -node node1 statit -b ... (wait 30 seconds) cluster::*> run -node node1 statit -e ... disk ut% xfers ureads--chain-usecs writes--chain-usecs cpreads-chain-usecs greads--chain-usecs gwrites-chain-usecs /data_aggr1/plex0/rg0: 0a.11.1 10 23.42 0.00 .... . 11.21 61.56 133 12.21 57.15 50 0.00 .... . 0.00 .... . 0a.10.1 11 23.80 0.00 .... . 11.66 59.25 147 12.14 57.37 55 0.00 .... . 0.00 .... . 1a.12.1 100 158.69 120.29 5.43 2299 10.26 34.39 553 28.15 9.93 839 0.00 .... . 0.00 .... . 0a.11.2 100 156.09 118.85 5.39 2253 9.96 34.97 553 27.28 10.05 794 0.00 .... . 0.00 .... .
cluster::> qos statistics volume latency show -vserver svm1 -volume vol1 Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- -total- - 4.71ms 185.00us 7.00us 468.00us 4.04ms 0ms 0ms 11.03s vol1-wid32140 32140 22.22s 86.00us 125.00us 904.00us 321.11ms 0ms 0ms 16.34s
 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.