On 7/7/20 4:40 PM, Ken Bloom wrote:
Side note, if you want to be proactive And replace drives preventatively, remember that for raid 5 you can only do one drive at a time, raid 6 2 drives,
I would *STRONGLY* *DISCOURAGE* replacing two drives in a RAID 6 at the same time. Doing so renders the array subject to a single drive failure causing total loss.
I *strongly* *suggest* only replacing one drive at a time in any given array. Period. End of story.
After all, if it's proactive, why do you /need/ to do it faster than one drive at a time?
but you need to have insertable Hot spares Or you lose data and you can’t do the next set of drives until the new ones are rebuilt....bottom line, it’s not efficient to do this.
I would suggest that you not use your (cold|hot) spares pool for this proactive drive replacement. Instead, purchase the new drive(s) when you are ready to do the swap.
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