> I am hoping to break the RAID and disconnect the slave ( as a backup), perform the upgrade and make sure this works first.
> If successful, can i just reconnect the slave, establish the RAID and the slave drive is rebuilt ?
> If unsuccessful, can I just connect the slave as the Master, the old master to the slave ,
> establish the RAID and the system will go back to initial setup ( before upgrade)
There is too much "risk" in the above procedure for my personal preference.
Why not just purchase an internal disk-drive (more than 256 GB), and "clone" from your production array onto the new drive. Production outage time: less than 60 minutes -- less if both "source" and "target" are SSD.
Install the new disk-drive onto a "spare" computer.
You do have a "spare" computer, ready to deploy should you have a hardware problem on the production server?
If not, you should!
Then, do the upgrades on the new disk-drive, and test the upgraded software.
If successful, "clone" back from the new drive onto the RAID array. Production outage time: less than 60 minutes.
P.S. How old are the current disk-drives? Out of warranty? Should they be "proactively" replaced before they fail?
This topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.