topic Re: volume snapshot policy create question in ONTAP Discussions

volume snapshot policy create question

ANTON_MSSM — Thu, 05 Jun 2025 05:49:20 GMT

Hi, I want to be able to create a policy for my cifs vserver that takes snapshots at specific times. on 7mode this is easy, I bet its easy on 8mode too if I knew how get the syntax correctly.

Ive been reading this https://library.netapp.com/ecmdocs/ECMP1197113/html/GUID-EE28F2E6-A114-4345-B7B5-858EF5D58563.html which shows an example so here is what I dont understand, where can I specify the hours that I want this snapshot to be on ?

I want the hourly snapshot to happen at 6,9,12,15,18

I also want to keep 1 nightly that happens at 0

I dont want any weekly snapshots

vserverA::> volume snapshot policy create -vserver vserverA -policy default-keep-5-hourly -schedule1 hourly -count1 5 -prefix1 hourly -enabled true

:volume snapshot policy> show

Vserver: vserverA

Number of Is

Policy Name Schedules Enabled Comment

------------------------ --------- ------- ----------------------------------

default-keep-5-hourly 1 true -

Schedule Count Prefix SnapMirror Label

---------------------- ----- ---------------------- -------------------

hourly 5 hourly -

Ok thats great, but when does it occur at hourly ? every hour? Can somebody point out the correct syntax, thanks

Re: volume snapshot policy create question

JTVNETAPP — Tue, 19 Nov 2013 17:45:56 GMT

take a look at "job schedule show" this will show the hourly schedule. and then "job schedule cron" to modify or create a new schedule to your liking, which you can then use with the snapshot policy.

Hope this helps.

Re: volume snapshot policy create question

ANTON_MSSM — Tue, 19 Nov 2013 18:34:28 GMT

thats great thanks you for pointing me in the right direction, I was able to create a cron and link it the the policy. now another question... how do I add an additional cron to an existing policy schedule ?

:volume snapshot policy> show

Vserver: cifs_test

Number of Is

Policy Name Schedules Enabled Comment

------------------------ --------- ------- ----------------------------------

default-keep-5-hourly 1 true -

Schedule Count Prefix SnapMirror Label

---------------------- ----- ---------------------- -------------------

cifs_cron 104 hourly -

now I created another cron job that will do a daily backup at 0:30, called it cifs_cron_nightly

:volume snapshot policy> job schedule show -name cifs_cron_nightly

Schedule Name: cifs_cron_nightly

Schedule Type: cron

Description: @0:30

Or do I have to create a new policy ? because the default policy has 3 schedules;

Policy Name Schedules Enabled Comment

------------------------ --------- ------- ----------------------------------

default 3 true Default policy with hourly, daily & weekly schedules.

Schedule Count Prefix SnapMirror Label

---------------------- ----- ---------------------- -------------------

hourly 6 hourly -

daily 2 daily daily

weekly 2 weekly weekly

I want to do the same thing more or less

Re: volume snapshot policy create question

JTVNETAPP — Tue, 19 Nov 2013 19:16:26 GMT

I would create a new policy which combines the up to 5 schedules you want.

vol snapshot policy create -policy test -enabled true ?

(volume snapshot policy create)

[ -comment <text> ] Comment

[-schedule1] <text> Schedule1 Name

[-count1] {0..255} Maximum Snapshot Copies for Schedule1

[ -prefix1 <text> ] Snapshot Copy Name Prefix for Schedule1

[ -schedule2 <text> ] Schedule2 Name

[ -count2 {0..255} ] Maximum Snapshot Copies for Schedule2

[ -prefix2 <text> ] Snapshot Copy Name Prefix for Schedule2

[ -schedule3 <text> ] Schedule3 Name

[ -count3 {0..255} ] Maximum Snapshot Copies for Schedule3

[ -prefix3 <text> ] Snapshot Copy Name Prefix for Schedule3

[ -schedule4 <text> ] Schedule4 Name

[ -count4 {0..255} ] Maximum Snapshot Copies for Schedule4

[ -prefix4 <text> ] Snapshot Copy Name Prefix for Schedule4

[ -schedule5 <text> ] Schedule5 Name

[ -count5 {0..255} ] Maximum Snapshot Copies for Schedule5

[ -prefix5 <text> ] Snapshot Copy Name Prefix for Schedule5

Re: volume snapshot policy create question

ANTON_MSSM — Tue, 19 Nov 2013 19:35:17 GMT

ok it looks like re-creating the policy is the way to go because I cannot modify the existing policy and schedules... strange.