Log snapshot information

[CJRoss]

Is there a way to log snapshot information either on Core or Scale? The zettarepl logs don't get picked up by syslog but I'd also like to see the additional information that zfs list -t snapshot provides.

 

[ativadore]

What system or application are the logs from?

 

[CJRoss]

What system or application are the logs from?

I'm not sure what you mean.

 

[Redcoat]

s there a way to log snapshot information either on Core or Scale? The zettarepl logs don't get picked up by syslog but I'd also like to see the additional information that zfs list -t snapshot provides.

Take a look at post #3 in https://www.truenas.com/community/t...-snapshot-tasks-and-replication-tasks.109670/

 

[winnielinnie]

The zpool history <poolname> command will show you dataset creations and destructions, snapshot creations and destructions, snapshot sends and receives, clone creations and promotions, key changes, keys loaded and unloaded, and a bunch of stuff, really. It's like a built-in "ledger" for your pool that is independent of the operating system.

You can use "grep" to filter the results.

How large can the zpool history log be? I never quite figured it out. Apparently it's a tenth of a percent of your pool's size, but this is old information.

 

[CJRoss]

zpool history isn't really what I'm looking for. I ended up configuring a cron task to output the following command on a regular basis.

Code:

zfs list -t snapshot 2>&1 | /usr/bin/logger -t snapshot_list

I need to sit down and come up with a good way to parse and display the output but other things keep requiring my attention.

 

[Ericloewe]

What information are you looking for, exactly? This seems like a weird scenario.

 

[CJRoss]

What information are you looking for, exactly? This seems like a weird scenario.

Probably. I'm mainly looking for a more convenient way to track the space usage across my datasets and snapshots over time.