W dniu 2009-12-01 11:06, RedShift pisze: > Jancio Wodnik wrote: > >> W dniu 30.11.2009 14:08, Farkas Levente pisze: >> >>> hi, >>> it's been a few weeks since rhel/centos 5.4 released and there were many >>> discussion about this new "feature" the weekly raid partition check. >>> we've got a lot's of server with raid1 system and i already try to >>> configure them not to send these messages, but i'm not able ie. i >>> already add to the SKIP_DEVS all of my swap partitions (since i read it >>> on linux-kernel list that there can be mismatch_cnt even though i still >>> not understand why?). but even the data partitions (ie. all of my >>> servers all raid1 partitions) produce this error (ie. ther mismatch_cnt >>> is never 0 at the weekend). and this cause all of my raid1 partitions >>> are rebuild during the weekend. and i don't like it:-( >>> so my questions: >>> - is it a real bug in the raid1 system? >>> - is it a real bug in my disk which runs raid (not really believe since >>> it's dozens of servers)? >>> - the /etc/cron.weekly/99-raid-check is wrong in rhel/centos-5.4? >>> or what's the problem? >>> can someone enlighten me? >>> thanks in advance. >>> regards. >>> >>> >>> >> Hi. I have this problem on my 2 servers (Both Centos 5.4) - every >> weekend my raid1 set is rebuild, because >> >> mismatch_cnt is never 0 at the weekend. What is really going on ? My 1TB disk whith raid1 are rebuild every weekend. >> >> > They aren't being rebuilt, they are being checked if the data on the RAID disks are consistent. There are various reasons why mismatch_cnt can be higher than 0, for example aborted writes. Generally it's not really something to be worried about if you have for example a swap partition in your RAID array. If you do a repair and then a check the mismatch_cnt should reset to 0. > > Hi. Nope, they are rebuild: /dev/md0 -> /boot and /dev/md1 -> /home and from log: /etc/cron.weekly/99-raid-check: WARNING: mismatch_cnt is not 0 on /dev/md0 WARNING: mismatch_cnt is not 0 on /dev/md1 And from dmesg: md: syncing RAID array md7 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 976759936 blocks. md: syncing RAID array md0 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 104320 blocks. md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md6 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md8 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md6 until md0 has finished resync (they share one or more physical units) md: delaying resync of md4 until md0 has finished resync (they share one or more physical units) md: delaying resync of md6 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md8 until md0 has finished resync (they share one or more physical units) md: md0: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda1 disk 1, wo:0, o:1, dev:sdb1 md: delaying resync of md8 until md4 has finished resync (they share one or more physical units) md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: delaying resync of md6 until md8 has finished resync (they share one or more physical units) md: syncing RAID array md4 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 4096448 blocks. md: md4: sync done. md: delaying resync of md6 until md8 has finished resync (they share one or more physical units) md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) md: syncing RAID array md8 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 929914368 blocks. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda6 disk 1, wo:0, o:1, dev:sdb6 md: md7: sync done. md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: delaying resync of md6 until md8 has finished resync (they share one or more physical units) RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sdc1 disk 1, wo:0, o:1, dev:sdd1 md: md8: sync done. md: syncing RAID array md6 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 7823552 blocks. md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda9 disk 1, wo:0, o:1, dev:sdb9 md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: md6: sync done. md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: syncing RAID array md5 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. RAID1 conf printout: md: using 128k window, over a total of 2048192 blocks. --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda8 md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) disk 1, wo:0, o:1, dev:sdb8 md: md5: sync done. md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: syncing RAID array md3 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 8193024 blocks. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda7 disk 1, wo:0, o:1, dev:sdb7 md: md3: sync done. md: syncing RAID array md1 RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda5 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 8193024 blocks. disk 1, wo:0, o:1, dev:sdb5 md: md1: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda3 disk 1, wo:0, o:1, dev:sdb3 CIFS VFS: cifs_mount failed w/return code = -6 CIFS VFS: cifs_mount failed w/return code = -6 SELinux: initialized (dev cifs, type cifs), uses genfs_contexts md: syncing RAID array md7 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 976759936 blocks. md: syncing RAID array md0 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 104320 blocks. md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md6 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md8 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: delaying resync of md6 until md0 has finished resync (they share one or more physical units) md: delaying resync of md4 until md0 has finished resync (they share one or more physical units) md: delaying resync of md6 until md0 has finished resync (they share one or more physical units) md: delaying resync of md1 until md0 has finished resync (they share one or more physical units) md: delaying resync of md5 until md0 has finished resync (they share one or more physical units) md: delaying resync of md8 until md0 has finished resync (they share one or more physical units) md: delaying resync of md3 until md0 has finished resync (they share one or more physical units) md: md0: sync done. md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) md: delaying resync of md8 until md4 has finished resync (they share one or more physical units) md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md6 until md8 has finished resync (they share one or more physical units) md: syncing RAID array md4 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 4096448 blocks. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda1 disk 1, wo:0, o:1, dev:sdb1 md: md4: sync done. md: delaying resync of md6 until md8 has finished resync (they share one or more physical units) md: syncing RAID array md8 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 929914368 blocks. md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda6 disk 1, wo:0, o:1, dev:sdb6 md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: md7: sync done. md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) RAID1 conf printout: md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) --- wd:2 rd:2 md: delaying resync of md6 until md8 has finished resync (they share one or more physical units) disk 0, wo:0, o:1, dev:sdc1 disk 1, wo:0, o:1, dev:sdd1 md: md8: sync done. md: syncing RAID array md6 md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda9 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. disk 1, wo:0, o:1, dev:sdb9 md: using 128k window, over a total of 7823552 blocks. md: delaying resync of md5 until md6 has finished resync (they share one or more physical units) md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: md6: sync done. md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: delaying resync of md3 until md5 has finished resync (they share one or more physical units) md: syncing RAID array md5 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 2048192 blocks. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda8 disk 1, wo:0, o:1, dev:sdb8 md: md5: sync done. md: delaying resync of md1 until md3 has finished resync (they share one or more physical units) md: syncing RAID array md3 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 8193024 blocks. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda7 disk 1, wo:0, o:1, dev:sdb7 md: md3: sync done. md: syncing RAID array md1 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 8193024 blocks. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda5 disk 1, wo:0, o:1, dev:sdb5 md: md1: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda3 disk 1, wo:0, o:1, dev:sdb3 This is a some kind of madness ! Jancio_Wodnik >> Has anybody make bugzilla this ? >> >> >> > I don't think so, this is a feature, not a bug... And as long as it's shipped with upstream it'll be shipped with CentOS. > > > Best regards, > > Glenn > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > >