From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Norman Zhang" Subject: Re: RAID1 removal Date: Fri, 20 Jun 2003 14:20:49 -0700 Sender: linux-raid-owner@vger.kernel.org Message-ID: References: Return-path: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids system_lists@nullzone.org wrote: > You just need change the disk now and use the 'hotadd' tool to > insert the new one into the raid. I think could be great > update the file /etc/raidtab too. So I don't need to remove drive from /proc/scsi/scsi? > About you are looking in /proc/mdstat ... you see only a disk on a 2 > disk raid. Where is the second one? out ... u got that using the > setfaulty... The faulty disk is still in the chassis. I pull the disk out by accident and stuck it back in afterwards 8( But I did set raidsetfaulty after that as described below. Regards, Norman >> I tried to remove a hot-swap RAID1 SCSI disk from the chassis. So I >> issued the following command >> >>> raidsetfaulty /dev/md4 /dev/sdd6 >>> raidhotremove /dev/md4 /dev/sdd6 >> >> But got the following message, >> >> /dev/md4: cannot hot-remove disk: disk is not in array! >> >> So I presume the disk is offline or something, and issued the >> following command >> >> echo "scsi remove-single-device 1 0 3 0" > /proc/scsi/scsi >> >> When I checked the newly created /proc/scsi/scsi, the device is >> still listed in the file. I checked /proc/mdstat and saw the >> following >> >> md4: active raid1 scsi/host1/bus0/target2/lun0/part6[0] >> 521984 blocks [2/1][U_] >> >> How do I remove the device, so I can add a new device to reconstruct >> the array again? Please give me a few pointers?