explain better.. do you have 2 disks in raid1, and removed one disk, or removed two disks? could you send dmesg messages? 2012/8/9 Miquel van Smoorenburg <mikevs@xxxxxxxxxx>: > Setup: kernel 3.2.21 (debian testing), mdadm 3.2.5. > > I created a RAID1 imsi array on a supermicro server for testing > purposes. I'm trying to see what happens if I hot-remove disks, > hot-add them, reboot, etc to test the resiliency of this setup. > > So I removed (by pulling it out) one disk, then simulated adding > a blank replacement disk by putting it back in and running > mdadm --zero-superblock on it. > > I re-added it to the container with mdadm /dev/md127 --add /dev/sda.. > and now it just sits there. How do I get the RAID1 array (dev/md126) > to start using this disk? The manpage says: > > -a, --add > hot-add listed devices. If a device appears to have recently > been part of the array (possibly it failed or was removed) the > device is re-added as described in the next point. If that > fails or the device was never part of the array, the device is > added as a hot-spare. If the array is degraded, it will imme‐ > diately start to rebuild data onto that spare. > > However, nothing is happening: > > root@server3-b05-tpb:~/tmp# cat /proc/mdstat > Personalities : [raid1] > md126 : active raid1 sdb[0] > 31457280 blocks super external:/md127/0 [2/1] [_U] > > md127 : inactive sda[1](S) sdb[0](S) > 6306 blocks super external:imsm > > > Thanks, > > Mike. > -- > 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
