On Mon, Dec 09, 2024 at 08:50:37PM -0000, Stuart Henderson wrote:
> On 2024-12-09, Bryan Vyhmeister <br...@bsdjournal.net> wrote:
> > I have a system with 4 3TB hard drives in a softraid(4) RAID 5 array. I
> > would like to expand the array to use much larger hard drives. I could
> > offline one drive, replace it with a larger drive, and then create a new
> > 'd' RAID partition of the new size (with fdisk(8) and disklabel(8). Then
> > I would initiate a rebuild. Once that was done on all four drives, would
> > it be possible to modify the sofraid(4) volume's fdisk and disklabel so
> > I could use growfs(8) to increase the size of the softraid(4) RAID 5
> > volume?
> >
> > I came across a thread asking about this exact issue for a softraid(4)
> > crypto volume and it was not possible to expland the softraid(4) volume
> > in that case. I am guessing that the same is probably true for RAID 5
> > but I am hoping that I may have overlooked something. Thank you.
> 
> Not possible with softraid, you'd need to backup/restore or attach both
> sets at the same time and copy across. (That will probably be quicker
> and certainly safer than reconstructing the raid5 four times anyway..)

That is what I expected. Thank you for the confirmation.

Bryan

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