升级到9.8倍后、FlexGroup vol报告的Snapshot大小大幅增加

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Category:: ontap-9

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适用场景

FlexGroup快照
ONTAP 9.8及更高版本

问题描述

升级到ONTAP 9.8及更高版本后，报告的Snapshot大小可能会大幅增加，而不是df -h 。

升级前

::> df -h fg* Filesystem total used avail capacity /vol/fg_vol/ 3420GB 253GB 3166GB 7% /vol/fg_vol/.snapshot 180GB 6003MB 174GB 3%

::> snapshot show fg* ---Blocks--- Vserver Volume Snapshot Size Total% Used% -------- -------- ------------------------------------- -------- ------ ----- svm1 fg_vol daily.2021-03-24_0010 3.93GB 0% 2% daily.2021-03-25_0010 1.19GB 0% 0% hourly.2021-03-25_1205 693.5MB 0% 0% hourly.2021-03-25_1305 44.07MB 0% 0% hourly.2021-03-25_1405 5.46MB 0% 0% hourly.2021-03-25_1505 5.46MB 0% 0% hourly.2021-03-25_1605 5.44MB 0% 0% hourly.2021-03-25_1705 5.40MB 0% 0%

升级后

::> df -h fg* Filesystem total used avail capacity /vol/fg_vol/ 3420GB 253GB 3166GB 7% /vol/fg_vol/.snapshot 180GB 5994MB 174GB 3%

::> snapshot show fg* ---Blocks--- Vserver Volume Snapshot Size Total% Used% -------- -------- ------------------------------------- -------- ------ ----- svm1 fg_vol daily.2021-03-24_0010 234.7GB 7% 48% daily.2021-03-25_0010 253GB 7% 50% hourly.2021-03-25_1505 251.2GB 7% 50% hourly.2021-03-25_1605 251.2GB 7% 50% hourly.2021-03-25_1705 251.2GB 7% 50% hourly.2021-03-25_1805 251.2GB 7% 50% hourly.2021-03-25_1905 251.2GB 7% 50% hourly.2021-03-25_2005 251.2GB 7% 50%

注意： 在FlexGroup成分卷级别不会出现这种情况。