RobH added a comment.
Well, we have @Mark's approval to use the on-site spares for this (as we have
plenty.)
Now the only question is how best to implement.
We could do as @Joe suggests and add the two additional disks as raid1 and
extend the LVM onto them.
Ideally, we setup future installs
RobH added a comment.
My issue is if we toss these in as a raid1 and extend the LVM, that is NOT how
we would typically install it from scratch. So when these systems eventually
upgrade and reinstall the distro, it'll involve changing the raid setup and
potentially mount points, etc... I
Smalyshev added a comment.
I think we can add the disks now to raid1 and file a task to reimage them
somewhere in January.
TASK DETAIL
https://phabricator.wikimedia.org/T119579
EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: RobH, Smalyshev
Cc:
RobH added a comment.
That sounds reasonable to me. I'll create the sub-tasks for the on-site
installation of the disks and implementation of both raid1 and space + future
reimage.
TASK DETAIL
https://phabricator.wikimedia.org/T119579
EMAIL PREFERENCES
fgiunchedi added a comment.
drive-by comment: partman will likely to be adjusted too so we don't run into
surprises when reprovisioning
TASK DETAIL
https://phabricator.wikimedia.org/T119579
EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: RobH,
Smalyshev added a comment.
I don't have enough expertise to decide which way is better, but I'd of course
prefer one that does not require reimage if possible and it does not have to
many downsides.
TASK DETAIL
https://phabricator.wikimedia.org/T119579
EMAIL PREFERENCES
RobH added a comment.
It would require a reimage to replace the raid1 with a raid10. However, it
would be the best option in the long run, as a raid10 can then have additional
disk pairs added without reimage. (So adding any further disks in the future
shouldn't require reimage, as long as
Joe added a comment.
btw, it should be noted that the LVM on those disks does not cover the whole
free space as of now, so you still have room to grow;
Also, we could add two new disks in raid1 and add them to the volume group of
the LVM if we want to, without need for reinstalling the server.
Smalyshev added a comment.
@RobH would it require full reimage or can be done incrementally while
preserving existing data? If the latter, sounds good to me to proceed anytime,
if it needs reimage then let's coordinate when it could be done.
TASK DETAIL
