-----Original Message----- From: Greg Freemyer <greg.freemyer@gmail.com> To: opensuse@opensuse.org Subject: Re: [opensuse] worried: failing disk or raid10? Date: Sat, 29 Jun 2013 16:11:06 -0400 On Sat, Jun 29, 2013 at 5:54 AM, Hans Witvliet <suse@a-domani.nl> wrote:
On my 12.2 system my syslog keeps telling (warning?) :
Jun 29 11:00:43 storage dbus-daemon[954]: **** CHANGED /sys/devices/virtual/block/md127 Jun 29 11:00:45 storage dbus-daemon[954]: **** POLL SYNCING MD /sys/devices/virtual/block/md127 Jun 29 11:00:45 storage dbus-daemon[954]: **** CHANGING /sys/devices/virtual/block/md127 Jun 29 11:00:45 storage dbus-daemon[954]: **** UPDATING /sys/devices/virtual/block/md127 Jun 29 11:00:45 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 Jun 29 11:00:45 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata2/host1/target1:0:0/1:0:0:0/block/sdb/sdb1 Jun 29 11:00:45 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata3/host2/target2:0:0/2:0:0:0/block/sdc/sdc1 Jun 29 11:00:45 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata4/host3/target3:0:0/3:0:0:0/block/sdd/sdd1 Jun 29 11:00:45 storage dbus-daemon[954]: **** EMITTING CHANGED for /sys/devices/virtual/block/md127 Jun 29 11:00:45 storage dbus-daemon[954]: **** CHANGED /sys/devices/virtual/block/md127 Jun 29 11:00:47 storage dbus-daemon[954]: **** POLL SYNCING MD /sys/devices/virtual/block/md127 Jun 29 11:00:47 storage dbus-daemon[954]: **** CHANGING /sys/devices/virtual/block/md127 Jun 29 11:00:47 storage dbus-daemon[954]: **** UPDATING /sys/devices/virtual/block/md127 Jun 29 11:00:47 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 Jun 29 11:00:47 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata2/host1/target1:0:0/1:0:0:0/block/sdb/sdb1 Jun 29 11:00:47 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata3/host2/target2:0:0/2:0:0:0/block/sdc/sdc1 Jun 29 11:00:47 storage dbus-daemon[954]: **** UPDATING /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/0000:03:01.0/ata4/host3/target3:0:0/3:0:0:0/block/sdd/sdd1 Jun 29 11:00:47 storage dbus-daemon[954]: **** EMITTING CHANGED for /sys/devices/virtual/block/md127 Jun 29 11:00:47 storage dbus-daemon[954]: **** CHANGED /sys/devices/virtual/block/md127
iostat -1 tels me that all four disk are continuously reading at a pace od 60MBps. And once every couple of seconds, four block are written.
Even when nothing happens on the box, top gives: 447 root 20 0 0 0 0 R 36.3 0.0 2:59.07 md127_raid10 4526 root 20 0 0 0 0 D 12.2 0.0 1:08.64 md127_resync
Should i be worried, or just leave the system at rest for a while ;-)
Your logs, etc. are consistent with a raid resync. A resync is pretty common so in and of itself nothing is wrong. A resync should be caused by an uncontrolled shutdown, on reboot the array has to be verified. If that was the tirgger, great. Also, a resync can be run via cron every once in a while to scan for bad media blocks. If that is the trigger, maybe you should move it to the middle of the night so it won't bother you in the future. Both of the above are good things. A resync can be caused because a disk is coming and going from the SATA bus. That is a bad thing. If this might be the cause, look thru the logs for that. Greg -----Original Message----- Thanks Greg, I think i had two issues: A flaky LSI scsi-card causing hard freezing of the entire system. And a 4*3TB raid needing time re rebuild mdstat said it needed about 10 hours to complete, so i let the machine/disks run without any extra burden. Seems to be running fine, so it is rsyncing the obs right now.. hw -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org