sata2 without hot plug? check if your sda sdb sdc will change after removing it, it´s depends on your udev or another /dev filesystem 2011/2/23 Roberto Nunnari <roberto.nunnari@xxxxxxxx>: > Hello. > > I have a linux box, with two 2TB sata HD in raid 1. > > Now, one disk is in failed state and it has no spares: > # cat /proc/mdstat > Personalities : [raid1] > md1 : active raid1 sdb4[2](F) sda4[0] > 1910200704 blocks [2/1] [U_] > > md0 : active raid1 sdb1[1] sda2[0] > 40957568 blocks [2/2] [UU] > > unused devices: <none> > > > The drives are not hot-plug, so I need to shutdown the box. > > My plan is to: > # sfdisk -d /dev/sdb > sdb.sfdisk > # mdadm /dev/md1 -r /dev/sdb4 > # mdadm /dev/md0 -r /dev/sdb1 > # shutdown -h now > > replace the disk and boot (it should come back up, even without one drive, > right?) > > # sfdisk /dev/sdb < sdb.sfdisk > # mdadm /dev/md1 -a /dev/sdb4 > # mdadm /dev/md0 -a /dev/sdb1 > > and the drives should start to resync, right? > > This is my first time I do such a thing, so please, correct me > if the above is not correct, or is not a best practice for > my configuration. > > My last backup of md1 is of mid november, so I need to be > pretty sure I will not lose my data (over 1TB). > > A bit abount my environment: > # mdadm --version > mdadm - v1.12.0 - 14 June 2005 > # cat /etc/redhat-release > CentOS release 4.8 (Final) > # uname -rms > Linux 2.6.9-89.31.1.ELsmp i686 > > Thank you very much and best regards. > Robi > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Roberto Spadim Spadim Technology / SPAEmpresarial -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
