On Fri, 2008-04-11 at 13:40 +0200, martin f krafft wrote: > tags 465556 unreproducible upstream > thanks > > also sprach Philipp Wollschlegel <[EMAIL PROTECTED]> [2008.02.13.0946 +0100]: > > mdadm hotadd flag is not interpreted correctly: > > > > debian:/home/folken# mdadm --manage /dev/md1 -a /dev/sda2 > > > > the return value of the above is 0. but the raiddevice is not > > added to the device. > > I cannot reproduce this: > > lapse:/tmp/cdt.nnet6607> sudo losetup -f one > #[1,305] > lapse:/tmp/cdt.nnet6607> sudo losetup -f two > #[306] > lapse:/tmp/cdt.nnet6607> sudo mdadm -Cn2 -l1 /dev/md0 /dev/loop[01] > #[307] > mdadm: array /dev/md0 started. > lapse:/tmp/cdt.nnet6607> sudo mdadm --set-faulty /dev/md0 /dev/loop1 > #[308] > mdadm: set /dev/loop1 faulty in /dev/md0 > lapse:/tmp/cdt.nnet6607> cat /proc/mdstat > #[309] > Personalities : [raid1] > md0 : active raid1 loop1[2](F) loop0[0] > 8128 blocks [2/1] [U_] > > unused devices: <none> > lapse:/tmp/cdt.nnet6607> sudo mdadm --remove /dev/md0 /dev/loop1 > #[310] > mdadm: hot removed /dev/loop1 > lapse:/tmp/cdt.nnet6607> sudo mdadm -a /dev/md0 /dev/loop1; echo $? > #[311] > mdadm: re-added /dev/loop1 > 0 > lapse:/tmp/cdt.nnet6607> cat /proc/mdstat > #[312] > Personalities : [raid1] > md0 : active raid1 loop1[1] loop0[0] > 8128 blocks [2/2] [UU] > > unused devices: <none>
I tried it with the commands you entered and it works as long as the second device added was once a member. (e.g. set faulty) it failes if the md array is created initialy with missing keyword and is then added with the manage command. Like so: [EMAIL PROTECTED]:/tmp# for each in one two ; do dd if=/dev/zero of="${each}" bs=1M count=50 ; done 50+0 records in 50+0 records out 52428800 bytes (52 MB) copied, 2.41071 seconds, 21.7 MB/s 50+0 records in 50+0 records out 52428800 bytes (52 MB) copied, 4.03959 seconds, 13.0 MB/s [EMAIL PROTECTED]:/tmp# losetup /dev/loop0 one [EMAIL PROTECTED]:/tmp# losetup /dev/loop1 two [EMAIL PROTECTED]:/tmp# mdadm --create /dev/md2 -n 2 -l 1 /dev/loop0 missing mdadm: array /dev/md2 started. [EMAIL PROTECTED]:/tmp# mdadm --manage /dev/md2 -a /dev/loop1 ; echo $? 0 [EMAIL PROTECTED]:/tmp# mdadm --manage /dev/md2 --add /dev/loop1 ; echo $? mdadm: added /dev/loop1 0 The hiccup seems not architecture specific, but seems to apply to mdadm - v2.5.6 in general. on mdadm - v2.6.4 - 19th October 2007 i wasn't able to reproduce it. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]