Michael, Whaddaya know.. I just happen to have a recipe for doing this. I went through a similar problem about two months ago. Just substitute /dev/hde and /def/hdg where applicable. Copy the MBR to /dev/hdc (done before procedure) prompt# grub Grub> device (hd0) /dev/hdc Grub> root (hd0,0) Grub> setup (hd0) Make sure that we have the partition table for all drives backed up (done before) prompt# sfdisk -d /dev/hda > /raidinfo/partitions.hda prompt# sfdisk -d /dev/hdc > /raidinfo/partitions.hdc prompt# more /proc/mdstat > /raidinfo/mdstat.md Estimated time: zero minutes Shutdown the box Remove /dev/hda and label as âhda badâ Boot box to make sure it boots Shutdown server and place new blank drive in ide0 (new hda) Estimated time: ten minutes Ghost ide1 (hdc) to ide0 (hda) Do âBoot Imageâ copy Estimated time: a little more than an hour Remove ide1 (original hdc) and label as âhdc goodâ Power on to make sure ide0 (new hda) boots Shutdown and place new blank drive in ide1 (new hdc) Power on to make sure it boots Shutdown Estimated time: fifteen minutes Power on and boot Copy the MBR to hdc prompt# grub Grub> device (hd0) /dev/hda Grub> root (hd0,0) Hope this helps, Mike. On Fri, 2004-08-13 at 17:51, Michael Mansour wrote: > Hi, > > I have a server with a 2 disk Linux Software RAID 1 > setup (two 80Gb disks). The first device is /dev/hde > and the second is /dev/hdg. > > The /dev/hde device is ready to fail, as it produces > various SMART errors using smartctl and fails on a > self-test with: > > [root@gazelle root]# smartctl -l selftest /dev/hde > smartctl version 5.30 Copyright (C) 2002-4 Bruce Allen > Home page is http://smartmontools.sourceforge.net/ > > === START OF READ SMART DATA SECTION === > SMART Self-test log structure revision number 1 > Num Test_Description Status > Remaining LifeTime(hours) LBA_of_first_error > # 1 Short offline Completed: read failure > 90% 34 0x0463c0ee > # 2 Short offline Completed: read failure > 90% 1087 0x0425290c > # 3 Extended offline Completed: read failure > 90% 1072 0x0425290c > # 4 Short offline Completed: read failure > 90% 1072 0x0425290c > # 5 Short offline Completed: read failure > 90% 1071 0x0425290c > > The server is running Fedora Core 1. > > I have the new 80Gb disk and wish to replace /dev/hde > device with the new disk, how do I do this? > > The following is how I have the mirror setup: > > # fdisk -l /dev/hde > > Disk /dev/hde: 80.0 GB, 80026361856 bytes > 255 heads, 63 sectors/track, 9729 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > > Device Boot Start End Blocks Id > System > /dev/hde1 * 1 395 3172806 b > Win95 FAT32 > /dev/hde2 396 408 104422+ fd > Linux raid autodetect > /dev/hde3 409 1070 5317515 fd > Linux raid autodetect > /dev/hde4 1071 9729 69553417+ f > Win95 Ext'd (LBA) > /dev/hde5 1071 1331 2096451 fd > Linux raid autodetect > /dev/hde6 1332 1585 2040223+ fd > Linux raid autodetect > /dev/hde7 1586 1716 1052226 fd > Linux raid autodetect > /dev/hde8 1717 4327 20972826 fd > Linux raid autodetect > /dev/hde9 4328 9729 43391533+ fd > Linux raid autodetect > > with /dev/hdg being exactly like above. > > As soon as I pull out the /dev/hde device, the server > won't boot (as grub only resides on /dev/hde), so I > also installed grub on /dev/hdg to overcome that > problem. But now I'm wondering what I must do to pull > out /dev/hde and replace it with the new drive (which > doesn't have any partitioning setup) and then force > Linux to resync the data on /dev/hdg to the new > /dev/hde? > > Is there some way I have to fail the /dev/hde drive, > replace it then put it back on-line? First time I've > done this with Software RAID so I'm not sure. > > Any advice is appreciated. > > Michael. > > > Find local movie times and trailers on Yahoo! Movies. > http://au.movies.yahoo.com >
