On 31/03/2011 12:14 AM, David Brown wrote:
If you've got a spare drive slot, and plenty of time, there is another option that lets you keep online and redundant during the process. Re-shape the array to raid 6, while adding one of the new drives. Then you can replace each drive, one at a time, letting the raid recover in between. For the last drive, you just have to remove it then reshape back to raid 5 (although ideally you could buy an extra drive and keep the raid 6 layout - it's worth the cost, assuming you have the drive slot). Once everything is swapped over, you grow the array to fit the new disks.
This makes me wonder... What is recommended as the best practice... Use the entire disk or 1 partition per device? Assuming of course that you won't be booting off the RAID5/6....
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