From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Dake Subject: Re: problems with raidhotgenerateerror Date: Wed, 18 Dec 2002 12:34:10 -0700 Sender: linux-raid-owner@vger.kernel.org Message-ID: <3E00CDB2.9090909@mvista.com> References: <200212180222.gBI2MUD23542@ars.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: To: Claudio Fleiner Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids You should try setting the raid device to faulty which will allow atleast the disk to be hot removed. Thanks -steve Claudio Fleiner wrote: >I was playing around with raid1 using two loopback devices of 4M each. >The config file I'm using looks like this: > >raiddev /dev/md0 > raid-level 1 > nr-raid-disks 2 > nr-spare-disks 0 > chunk-size 4 > persistent-superblock 1 > device /dev/loop0 > raid-disk 0 > device /dev/loop1 > raid-disk 1 > > >Everything works as expected, except that I cannot simulate an error using >raidhotgenerateerror. The command runs just fine (as confirmed by the following strace, >(all unnecessary stuff removed): > >execve("/home/cfl/prog/raidtools-20010914/raidhotgenerateerror", ["/home/cfl/prog/raidtools-20010914/raidhotgenerateerror", "-c", "c", "/dev/md0", "/dev/loop0"], [/* 58 vars */]) = 0 >open("/dev/md0", O_RDONLY) = 4 >ioctl(4, 0x800c0910, 0x804f948) = 0 >open("/dev/md0", O_RDWR) = 5 >fstat64(5, {st_mode=S_IFBLK|0660, st_rdev=makedev(9, 0), ...}) = 0 >stat64("/dev/loop0", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0), ...}) = 0 >ioctl(5, 0x92a, 0x700) = 0 >_exit(0) = ? > >but /proc/mdstat shows that loop0 is still OK (writing to the md0 device >does not make a difference) and removing the drive using raidhotremove >fails): > >Personalities : [raid0] [raid1] [raid5] >read_ahead 1024 sectors >md0 : active raid1 [dev 07:01][1] [dev 07:00][0] > 4032 blocks [2/2] [UU] > > >I'm using Redhat 7.2 with a 2.4.19 kernel. > >Any idea why this is not working? > >Thanks, Claudio > > > >- >To unsubscribe from this list: send the line "unsubscribe linux-raid" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > >