Issue with SR and coalesce

its ok buddy, please don't feel it, i'm following the discussion and trying to figure out whats happening too.
I added another SR and i'm monitoring the status. Still having performance issues (1 SR is SAS) but, the coalesce number seems to be finally decreasing.
Watching out the backup jobs running and keep you all in touch

lucasljorge

@lucasljorge

thanks to @nikade and @dthenot for the quick response. I wiped out the "old SR" with coalesce issues after migrating. Seems to be running ok.

Byte_Smarter

@lucasljorge

Yeah I am at a loss restored systems from Full backups onto a new SR multiple times and it just will not let us backup while they run, turn them off works fine.

Its like XCP's failing to make a snapshot, but you can make snapshots manually and its fine.

Maybe new SR is broken? if that's the case how does that happen when it was just created and added. If there a SR repair tool?

I can not find the error we are getting anywhere and the fact it does not have any logs of coalescing makes me thing its just not doing its job.

tjkreidl

@lucasljorge How full is the storage, percentage-wise? If over around 90%, a coalesce operation sometimes will not work. You may have to shuffle some of your VM storage to a different SR.
If your host is not responding, you may have to do a reboot to clear out stuck taks if the "xe task-cancel" command isn't working.

lucasljorge

@Byte_Smarter hard to tell whats happening. The Xen version here is 8.2

I read somewhere in other XCP documentation, that the SR has to be at least 30% free to do backup and coalesce jobs properly.

I think that was the problem here, the SR went full and we're unable to run any job. But i had to recreate the old SR to get a success response from Orchestra.

Did you try to migrate the VDI's to another SR?

lucasljorge

@tjkreidl it was around 85% full.

Byte_Smarter

@lucasljorge Its a Brand New SR that we moved them too with TB of free space

Byte_Smarter

@Byte_Smarter said in Issue with SR and coalesce:

@lucasljorge Its a Brand New SR that we moved them too with TB of free space

By moved we used a backup restore instead of a migration.

lucasljorge

@Byte_Smarter I would try updating XCP first, I'm just not sure the impacts

don't know too if there are differences between migration and restoring a backup to the master/orchestra

Byte_Smarter

@lucasljorge

Yeah we are thinking that too, it would involve downtime on all 10 of the systems in the pool to complete so that would be a scheduled task.

tjkreidl

@lucasljorge That may be the issue. That's pretty full for a coalesce to work!

Byte_Smarter

@tjkreidl Would a not full disk still have the issue be just a completely different issue ?

tjkreidl

@Byte_Smarter Sure, that's of course possible. Does "xe task-list" show any currently running tasks? Anything else of possible value in the logs?

Byte_Smarter

@tjkreidl

xe task-list

Shows no tasks are running at this moment