Zimbra masters/gurus....

Our Zimbra server was running on a physical server which I had no input when it was set up at all. Anyway, to cut the long story short two drives failed in a raid5 array and at this point it looks like the array is unrecoverable.

I have a nightly backup of both the Zimbra mysql database and the /opt/zimbra folder. Will this be enough to recover the Zimbra instance? If so, can anyone point me to relevant procedures to do this recovery?