Moving to new/bigger drives

[AutootuA]

My server is running Ubuntu 6.10 and my version of Zimbra is currently 5.0.19. I want to install new/bigger drives and install Ubuntu 8.04. I've since found a Power Tip on Moving ZCS to Another Server.

Has any one has done this and are there any hidden gotchas?

I'm making room on my NAS for the backup. How can I determine the correct size of backup space required?

[AutootuA]

It looks like I have 114GB in /opt/zimbra/.

# du -sh /opt/zimbra
114G	/opt/zimbra

I'll try a test rsync tonight to see how that goes.

[ringnebula]

If you are going to mount the new drive(s) at /opt or /opt/zimbra it is pretty straight-forward.

Stop zimbra, mount new drives @ temporary mountpoint, rsync from original location to new location, mount new drives at permanent location, update /etc/fstab, etc.

Since you are running network edition you could also use HSM to move old data to the new drives.

[AutootuA]

Is it possible to remove obsolete files? Are current backups kept in the sessions directory? The 5.0.2_GA-7.1 directory has 60GB in it. Is this obsolete data?

root@mail:/opt/zimbra/backup# ls -la
total 52
drwxr-xr-x  5 zimbra zimbra  4096 2009-10-28 00:00 .
drwxr-xr-x 68 root   root    4096 2009-10-20 20:10 ..
drwxr-xr-x  5 root   root    4096 2008-05-07 18:22 5.0.2_GA-7.1
-rw-r-----  1 zimbra zimbra 15397 2009-10-28 00:00 accounts.xml
-rw-r-----  1 zimbra zimbra 15397 2009-10-27 00:00 accounts.xml.old
drwxr-x--- 35 zimbra zimbra  4096 2009-10-28 01:00 sessions
drwxr-x---  2 zimbra zimbra  4096 2009-10-28 01:00 tmp

[ringnebula]

That is a question I don't have the answer to I'm afraid. My guess would be that you could dump the old directory, but I don't want to lead you astray.

[uxbod]

You should not require that directory ... but to be on the safe side why not archive it off somewhere.

[bluezebra]

How can I determine the correct size of backup space required?

You can check the backup schedule in the cron. By default it deletes all backups older than one month. Does one full backup on saturday and incremental backup on all other days. So you will have maximum of 4 full backups and other incrementals in a month. Now checking the size of the store and HSM of your current zimbra installation you can identify the size of backup you'd require. Also consider the new accounts you'd probably add later.

[AutootuA]

Originally Posted by uxbod

You should not require that directory ... but to be on the safe side why not archive it off somewhere.

Just to verify that I did this correctly before I delete, I ran the following to backup up the 5.0.2_GA-7.1 directory.

rsync -avH /opt/zimbra/backup/5.0.2_GA-7.1 /mnt/share

That should give me a reliable backup, right?