以下哪个快照自动删除选项在延迟删除和删除顺序之间具有较高的优先级？

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Category:: fas-systems<a>Snapshot自动删除</a><a>2009-201245</a>

Specialty:: core

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适用场景

ONTAP 9

问题解答

Defer delete 选项具有高优先级。

追加信息

请参见此测试结果：

cluster1::*> version NetApp Release Dirtwolf__9.8.0: Wed Dec 09 01:07:39 UTC 2020

cluster1::*> snapshot autodelete show -vserver svm1_cluster1 -volume vol5 Vserver Name: svm1_cluster1 Volume Name: vol5 Enabled: true Commitment: try Defer Delete: user_created Delete Order: oldest_first Defer Delete Prefix: (not specified) Target Free Space: 20% Trigger: snap_reserve Destroy List: none Is Constituent Volume: false

原始、快照预留容量为10%。此操作不会触发快照自动删除

luster1::*> df vol5 Filesystem kbytes used avail capacity Mounted on Vserver /vol/vol5/ 996148 103396 892752 10% /vol5 svm1_cluster1 /vol/vol5/.snapshot 52428 5040 47388 10% /vol5/.snapshot svm1_cluster1 2 entries were displayed.

cluster1::*> snapshot show -vserver svm1_cluster1 -volume vol5 -fields vserver,volume,snapshot,size,create-time vserver volume snapshot create-time size ------------- ------ -------- ------------------------ ----- svm1_cluster1 vol5 user1 Wed Jun 15 05:32:27 2022 172KB svm1_cluster1 vol5 user2 Wed Jun 15 05:32:44 2022 156KB svm1_cluster1 vol5 user3 Wed Jun 15 05:32:48 2022 160KB svm1_cluster1 vol5 user4 Wed Jun 15 05:32:51 2022 160KB svm1_cluster1 vol5 user5 Wed Jun 15 05:32:53 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0535 Wed Jun 15 05:35:00 2022 180KB svm1_cluster1 vol5 user6 Wed Jun 15 05:37:12 2022 172KB svm1_cluster1 vol5 user7 Wed Jun 15 05:37:15 2022 140KB svm1_cluster1 vol5 user8 Wed Jun 15 05:37:17 2022 180KB svm1_cluster1 vol5 user9 Wed Jun 15 05:37:20 2022 140KB svm1_cluster1 vol5 user10 Wed Jun 15 05:37:23 2022 140KB svm1_cluster1 vol5 user11 Wed Jun 15 05:37:40 2022 200KB svm1_cluster1 vol5 user112 Wed Jun 15 05:37:43 2022 140KB svm1_cluster1 vol5 user13 Wed Jun 15 05:37:49 2022 140KB svm1_cluster1 vol5 user14 Wed Jun 15 05:37:53 2022 212KB svm1_cluster1 vol5 user15 Wed Jun 15 05:37:57 2022 140KB svm1_cluster1 vol5 user16 Wed Jun 15 05:38:17 2022 140KB svm1_cluster1 vol5 user17 Wed Jun 15 05:38:21 2022 212KB svm1_cluster1 vol5 user18 Wed Jun 15 05:38:25 2022 140KB svm1_cluster1 vol5 user19 Wed Jun 15 05:38:27 2022 140KB svm1_cluster1 vol5 user20 Wed Jun 15 05:38:31 2022 140KB svm1_cluster1 vol5 user21 Wed Jun 15 05:39:26 2022 140KB svm1_cluster1 vol5 user22 Wed Jun 15 05:39:46 2022 240KB svm1_cluster1 vol5 user23 Wed Jun 15 05:39:51 2022 140KB svm1_cluster1 vol5 user24 Wed Jun 15 05:39:57 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0540 Wed Jun 15 05:40:00 2022 140KB svm1_cluster1 vol5 user25 Wed Jun 15 05:40:01 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0545 Wed Jun 15 05:45:00 2022 252KB svm1_cluster1 vol5 5min.2022-06-15_0550 Wed Jun 15 05:50:00 2022 164KB svm1_cluster1 vol5 user26 Wed Jun 15 05:52:07 2022 140KB svm1_cluster1 vol5 user27 Wed Jun 15 05:52:18 2022 200KB 31 entries were displayed.

此时、将从活动文件系统中删除70 MB的数据、而通过最新Snapshot user27
Snapshot预留容量删除的数据占用的Snapshot预留空间将增加到148%

cluster1::*> snapshot show -vserver svm1_cluster1 -volume vol5 -fields vserver,volume,snapshot,size,create-tim e vserver volume snapshot create-time size ------------- ------ -------- ------------------------ ----- svm1_cluster1 vol5 user1 Wed Jun 15 05:32:27 2022 172KB svm1_cluster1 vol5 user2 Wed Jun 15 05:32:44 2022 156KB svm1_cluster1 vol5 user3 Wed Jun 15 05:32:48 2022 160KB svm1_cluster1 vol5 user4 Wed Jun 15 05:32:51 2022 160KB svm1_cluster1 vol5 user5 Wed Jun 15 05:32:53 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0535 Wed Jun 15 05:35:00 2022 180KB svm1_cluster1 vol5 user6 Wed Jun 15 05:37:12 2022 172KB svm1_cluster1 vol5 user7 Wed Jun 15 05:37:15 2022 140KB svm1_cluster1 vol5 user8 Wed Jun 15 05:37:17 2022 180KB svm1_cluster1 vol5 user9 Wed Jun 15 05:37:20 2022 140KB svm1_cluster1 vol5 user10 Wed Jun 15 05:37:23 2022 140KB svm1_cluster1 vol5 user11 Wed Jun 15 05:37:40 2022 200KB svm1_cluster1 vol5 user112 Wed Jun 15 05:37:43 2022 140KB svm1_cluster1 vol5 user13 Wed Jun 15 05:37:49 2022 140KB svm1_cluster1 vol5 user14 Wed Jun 15 05:37:53 2022 212KB svm1_cluster1 vol5 user15 Wed Jun 15 05:37:57 2022 140KB svm1_cluster1 vol5 user16 Wed Jun 15 05:38:17 2022 140KB svm1_cluster1 vol5 user17 Wed Jun 15 05:38:21 2022 212KB svm1_cluster1 vol5 user18 Wed Jun 15 05:38:25 2022 140KB svm1_cluster1 vol5 user19 Wed Jun 15 05:38:27 2022 140KB svm1_cluster1 vol5 user20 Wed Jun 15 05:38:31 2022 140KB svm1_cluster1 vol5 user21 Wed Jun 15 05:39:26 2022 140KB svm1_cluster1 vol5 user22 Wed Jun 15 05:39:46 2022 240KB svm1_cluster1 vol5 user23 Wed Jun 15 05:39:51 2022 140KB svm1_cluster1 vol5 user24 Wed Jun 15 05:39:57 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0540 Wed Jun 15 05:40:00 2022 140KB svm1_cluster1 vol5 user25 Wed Jun 15 05:40:01 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0545 Wed Jun 15 05:45:00 2022 252KB svm1_cluster1 vol5 5min.2022-06-15_0550 Wed Jun 15 05:50:00 2022 164KB svm1_cluster1 vol5 user26 Wed Jun 15 05:52:07 2022 140KB svm1_cluster1 vol5 user27 Wed Jun 15 05:52:18 2022 71.28MB 31 entries were displayed.

cluster1::*> df vol5 Filesystem kbytes used avail capacity Mounted on Vserver /vol/vol5/ 996148 55888 940260 5% /vol5 svm1_cluster1 /vol/vol5/.snapshot 52428 77724 0 148% /vol5/.snapshot svm1_cluster1 2 entries were displayed.

已触发Snapshot自动删除功能。
它首先删除最早的计划快照、即 5min.2022-06-15_0535

cluster1::*> snapshot show -vserver svm1_cluster1 -volume vol5 -fields vserver,volume,snapshot,size,create-tim e vserver volume snapshot create-time size ------------- ------ -------- ------------------------ ----- svm1_cluster1 vol5 user1 Wed Jun 15 05:32:27 2022 172KB svm1_cluster1 vol5 user2 Wed Jun 15 05:32:44 2022 156KB svm1_cluster1 vol5 user3 Wed Jun 15 05:32:48 2022 160KB svm1_cluster1 vol5 user4 Wed Jun 15 05:32:51 2022 160KB svm1_cluster1 vol5 user5 Wed Jun 15 05:32:53 2022 168KB svm1_cluster1 vol5 user6 Wed Jun 15 05:37:12 2022 172KB svm1_cluster1 vol5 user7 Wed Jun 15 05:37:15 2022 140KB svm1_cluster1 vol5 user8 Wed Jun 15 05:37:17 2022 180KB svm1_cluster1 vol5 user9 Wed Jun 15 05:37:20 2022 140KB svm1_cluster1 vol5 user10 Wed Jun 15 05:37:23 2022 140KB svm1_cluster1 vol5 user11 Wed Jun 15 05:37:40 2022 200KB svm1_cluster1 vol5 user112 Wed Jun 15 05:37:43 2022 140KB svm1_cluster1 vol5 user13 Wed Jun 15 05:37:49 2022 140KB svm1_cluster1 vol5 user14 Wed Jun 15 05:37:53 2022 212KB svm1_cluster1 vol5 user15 Wed Jun 15 05:37:57 2022 140KB svm1_cluster1 vol5 user16 Wed Jun 15 05:38:17 2022 140KB svm1_cluster1 vol5 user17 Wed Jun 15 05:38:21 2022 212KB svm1_cluster1 vol5 user18 Wed Jun 15 05:38:25 2022 140KB svm1_cluster1 vol5 user19 Wed Jun 15 05:38:27 2022 140KB svm1_cluster1 vol5 user20 Wed Jun 15 05:38:31 2022 140KB svm1_cluster1 vol5 user21 Wed Jun 15 05:39:26 2022 140KB svm1_cluster1 vol5 user22 Wed Jun 15 05:39:46 2022 240KB svm1_cluster1 vol5 user23 Wed Jun 15 05:39:51 2022 140KB svm1_cluster1 vol5 user24 Wed Jun 15 05:39:57 2022 140KB svm1_cluster1 vol5 user25 Wed Jun 15 05:40:01 2022 140KB svm1_cluster1 vol5 5min.2022-06-15_0545 Wed Jun 15 05:45:00 2022 252KB svm1_cluster1 vol5 5min.2022-06-15_0550 Wed Jun 15 05:50:00 2022 164KB svm1_cluster1 vol5 user26 Wed Jun 15 05:52:07 2022 140KB svm1_cluster1 vol5 user27 Wed Jun 15 05:52:18 2022 71.32MB 29 entries were displayed.

很快、大多数快照都会被删除

快照预留容量为140%

cluster1::*> df vol5 Filesystem kbytes used avail capacity Mounted on Vserver /vol/vol5/ 996148 52448 943700 5% /vol5 svm1_cluster1 /vol/vol5/.snapshot 52428 73444 0 140% /vol5/.snapshot svm1_cluster1 2 entries were displayed.

Snapshot自动删除仍会继续

cluster1::*> snapshot show -vserver svm1_cluster1 -volume vol5 -fields vserver,volume,snapshot,size,create-time vserver volume snapshot create-time size ------------- ------ -------- ------------------------ ----- svm1_cluster1 vol5 user26 Wed Jun 15 05:52:07 2022 140KB svm1_cluster1 vol5 user27 Wed Jun 15 05:52:18 2022 71.33MB 2 entries were displayed.

cluster1::*> snapshot show -vserver svm1_cluster1 -volume vol5 -fields vserver,volume,snapshot,size,create-time vserver volume snapshot create-time size ------------- ------ -------- ------------------------ ------- svm1_cluster1 vol5 user27 Wed Jun 15 05:52:18 2022 71.33MB

最后、删除所有快照并释放快照预留空间

cluster1::*> snapshot show -vserver svm1_cluster1 -volume vol5 -fields vserver,volume,snapshot,size,create-time There are no entries matching your query.

cluster1::*> df vol5 Filesystem kbytes used avail capacity Mounted on Vserver /vol/vol5/ 996148 30456 965692 3% /vol5 svm1_cluster1 /vol/vol5/.snapshot 52428 0 52428 0% /vol5/.snapshot svm1_cluster1 2 entries were displayed.

event log show 已记录准确的快照删除顺序

cluster1::*> event log show Time Node Severity Event ------------------- ---------------- ------------- --------------------------- 6/15/2022 05:58:56 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user27' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:58:45 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user26' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:58:35 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user25' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:58:24 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user24' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:58:13 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user23' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:58:02 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user22' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:57:51 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user21' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:57:40 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user20' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:57:30 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user19' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:57:19 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user18' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:57:08 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user17' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:56:58 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user16' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:56:47 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user15' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:56:36 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user14' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:56:25 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user13' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:56:04 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user11' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:55:53 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user10' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:55:43 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user9' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:55:32 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user8' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:55:21 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user7' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:55:00 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy '5min.2022-06-15_0555' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:55:00 cluster1-01 INFORMATIONAL wafl.vol.snap_create.done: type="Volume", owner="", vol="vol5", app="", volident="@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181", run_time="0" 6/15/2022 05:54:55 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user6' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:54:44 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user5' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:54:34 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user4' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:54:23 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user3' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:54:12 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user2' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:54:02 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy 'user1' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:53:51 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy '5min.2022-06-15_0550' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:53:40 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy '5min.2022-06-15_0545' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:53:29 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy '5min.2022-06-15_0540' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage. 6/15/2022 05:53:19 cluster1-01 INFORMATIONAL wafl.volume.snap.autoDelete: Deleting Snapshot copy '5min.2022-06-15_0535' in volume 'vol5@vserver:5f4c3202-5759-11eb-b4fc-005056b0b181' to recover storage.