Re: proactive disk replacement

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On 21/3/17 02:04, Reindl Harald wrote:


Am 20.03.2017 um 15:59 schrieb Adam Goryachev:
On 20/3/17 23:47, Jeff Allison wrote:
Hi all I’ve had a poke around but am yet to find something definitive.

I have a raid 5 array of 4 disks amounting to approx 5.5tb. Now this
disks are getting a bit long in the tooth so before I get into
problems I’ve bought 4 new disks to replace them.

I have a backup so if it all goes west I’m covered. So I’m looking for
suggestions.

My current plan is just to replace the 2tb drives with the new 3tb
drives and move on, I’d like to do it on line with out having to trash
the array and start again, so does anyone have a game plan for doing
that.
Yes, do not fail a disk and then replace it, use the newer replace
method (it keeps redundancy in the array)

how should it keep redundancy when you have to remove a disk anyways except you have enough slots to at least temporary add a additional one?
Yes, assuming you can (at least temporarily) add an additional disk, then you will not lose redundancy by using the replace instead of fail/add method.

Regards,
Adam
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