On 6/13/2012 1:04 PM, Ramon Hofer wrote: > On Tue, 12 Jun 2012 18:35:57 -0500 > Stan Hoeppner <s...@hardwarefreak.com> wrote: > >>> Hmm, probably I have to create a raid5 with the four empty 2 TB >>> disks attached to the LSI. Then: >>> >>> ~$ mdadm -C /dev/md0 -n1 -l linear /dev/md1 >> >> WTF? > > I also had to add --force to create the array with one raid5. > > >>> Now I copy the content from the old raid5 with the four 1.5 TB >>> disks to the new linear md0. >> >> Shuffleboard... You didn't previously make clear that not all 8 disks >> were freely available to build your stack from the ground up. The >> instructions I gave you assumed that all 8 drives were clean. Now >> you're attempting to modify the precise instructions I gave you and >> play shuffleboard with your data and disks, attempting to migrate on >> the fly. > > Sorry, I wrote this too in another thread :-( > I like taking some risk :-) > > But since the old raid isn't written only read I didn't fear to loose > the data.
No, no, no risk of losing the data. The problem is with the resulting XFS AG layout you got from this procedure, as I mentioned in the other reply. Everything will still work, assuming mdadm will allow you to add another array after having to use --force to create the linear. I've never tried creating a linear array with one device before. If that works, and the xfs grow works, you should be ok, just with less performance. > >> This may not have a good outcome. I guess you feel that you >> understand this stuff and are confident in your ability at this point >> to effect the outcome you desire. If things break badly, I'll try to >> assist, but I make no promises WRT outcomes nor guarantee my >> availability. > > I wanted to finally do something ;-) I was being a bit dramatic there, frustration showing I guess. ;) Like I said, should be ok, if mdadm doesn't puke adding the other array in. -- Stan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4fd9a2b7.6010...@hardwarefreak.com
