-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm late to the thread, but I just did this on my home backup file server. I had a 5x500gb raid 5 /dev/md1 which I reshaped by adding a 6th 500gb drive into. The reshaping tool about 20 hours, and then the ext3 resize took another 5 hours. All online, even continued to perform rsync backups - no issues. Gotta love mdadm! On 08/31/2010 09:15 PM, Yaron wrote: > > In case anyone is interested, once the array was done reshaping, resize2fs > started working. It's resizing the thing right now... while it's mounted. > Didn't even WARN me about it. Seems to be working fine but is super-super > slow. I /really/ wish I'd remembered to unmount it first but there is NO > WAY I am messing with this thing while it's running... > >> On Tue, Aug 31, 2010 at 10:07 AM, Yaron <tclug at freakzilla.com> wrote: >> Anyone here use software RAID and use mdadm to expand an array? >> >> I used to have a RAID0 array with two disks, and tried to grow >> it... only >> to find you can't add devices to a RAID0 (no idea why, it seems >> like it'd >> be the easiest!) Anyway, I had to use the two additional disks >> to make a >> RAID5 array (by splitting them into two partitions each), copy >> all the >> data to THAT one and then grow it using the original RAID >> devices. >> >> Yeah, bit of a mess, and I eventually got the RAID5 built, let >> that run >> for a bit to make sure it actually works, then nuked the old >> RAID0, split >> one of the drives into partitions the same size I'm using for >> the RAID5 >> volumes, and added them to the current array. >> >> That all went well, except when I tried to resize the >> filesystem, >> resize2fs says it's already at maximum. >> >> I do notice from /proc/mdstat that the array is "reshaping" (and >> it's >> going to take forEVER) and I'm wondering if resize2fs isn't >> supposed to >> work until that's done. >> >> If that's NOT the case and it's supposed to be able to resize >> the >> filesystem as soon as I've grown the array, then either >> somethng's wrong >> or I've missed something. I've followed the Linux RAID Wiki's >> instructions >> and have no indication of either of those though. >> >> Anyone? >> >> >> >> -Yaron >> >> -- >> >> _______________________________________________ >> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >> tclug-list at mn-linux.org >> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >> >> >> >> > > > -Yaron > > -- > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAkx/7KMACgkQvE9HrEfeE4dX/ACg0XpX52XwR3H+vxLAASrzwfaP lLEAnR/QRR/qFSUi4nfkqgk33ZGhSGFg =BTZI -----END PGP SIGNATURE-----