Updating snapshot expiration

[Donald King]

Hi all.

We initially set up our SyncIQ to retain 12 months of snapshots.  My employer is not requiring me to keep 24 months of snapshots.  My target cluster is big enough for this.  I updated the policies, but I know that does not update the snapshots already take.  I can via command line update the snapshot expiration date for a snapshot expiring soon, using the command below:

isi snapshot snapshots modify --snapshot=54476 --expires=2019-05-13T00:01:16

Has anyone tackled this systematically?  Scripting a way to search for soon to expire snapshots, then changing them by adding a couple of years?

Tanks much.

[afowler]

Not sure if you ever got an answer to your question.  The following command would probably work:

for a in `isi snapshot snapshots list --format=csv --no-footer --no-header|cut -d ',' -f 1`; do isi snapshot snapshots modify $a --expires=2019-05-13T00:01:16; done

Granted now you probably have a handful of snapshots which won't apply to that date now, but this would work if you wanted to modify all of them.

[Robert Chang]

Also maybe consider using the OneFS API if this is something you'd be doing repeatedly.

http://doc.isilon.com/onefs/8.0.0/api/en-us/03-ifs-br-system-config-api.htm

Snapshots resource

Create, modify, delete, or retrieve information about file system snapshots.

Operation	Method and URI
Get a list of all snapshots	GET <cluster-ip:port>/platform/1/snapshot/snapshots
Get a single snapshot	GET <cluster-ip:port>/platform/1/snapshot/snapshots/<id|snapshot name>
Create a snapshot	POST <cluster-ip:port>/platform/1/snapshot/snapshots
Modify a snapshot	PUT <cluster-ip:port>/platform/1/snapshot/snapshots/<id|snapshot name>
Delete all snapshots	DELETE <cluster-ip:port>/platform/1/snapshot/snapshots
Delete a snapshot	DELETE <cluster-ip:port>/platform/1/snapshot/snapshots/<id|snapshot name>
View the detailed JSON schema for this resource, which has information about query parameters and object properties.	GET <cluster-ip:port>/platform/1/snapshot/snapshots/<id|snapshot name>?describe
	GET <cluster-ip:port>/platform/1/snapshot/snapshots?describe

[afowler]

The API is a great resource for tasks like this too.  Feel free to use the script attached as a template for future scripts.  What the one attached will do is to modify all existing snapshot expirations so that they expire 2 years after their creation.  Use script at own risk, and please test first in non-prod environment.  You'll have to save it as a .ps1.