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lifesupp! message
Hi,
I got this message, "lifesupp! message", while doing a resync (complete history follows) and I think I need some help from experts due the previous messages in this forum about this error.
- My nas is a ReadyNas Pro with 6 bays, all equipped and disks were synced.
- After a failure in disk 2 I procced to replace it but, during the resync, the disk 6 started to report failures.
- At some point I got the following mail from the NAS:
> Complete RAID volume synchronization in C. However, the array is still degraded mode. This may be due to failure of disk synchronization damaged or the presence of a disk array in multiple parity disks.
- Looking at /proc/mdstat gives me this information:
> Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
> md2 : active raid5 sdf5[8](S) sda5[0] sde5[7](F) sdd5[4] sdc5[6] sdb5[2]
> 9743966480 blocks super 1.2 level 5, 16k chunk, algorithm 2 [6/4] [U_UUU_]
> md1 : active raid6 sdf2[8] sda2[0] sde2[6] sdd2[4] sdc2[7] sdb2[2]
> 2096896 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/6] [UUUUUU]
> md0 : active raid1 sdf1[8] sda1[0] sde1[7] sdd1[4] sdc1[6] sdb1[2]
> 4194292 blocks super 1.2 [6/6] [UUUUUU]
> unused devices: <none>
- Status in control panel
So, the question now is: what are the following steps? I have ssh access and a good technical background.
Thanks.
You run into a very common problem. Your drives report okay to the ReadyNAS until heavy operations take place (like resyncing RAIDs). When you have to resync the RAID, it manuevers through all the disks and reads sectors that maybe weren't read in a long time.
Anyway, while you're resyncing a new disk, bad parts of the old disks make themselves visible. You can catch these usually by running a scrub maybe a few times a year. Running the scrub will help you find disks that have problems sooner than later.
Also, you should always have a backup of your important data. A single point of failure is simple that.
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You run into a very common problem. Your drives report okay to the ReadyNAS until heavy operations take place (like resyncing RAIDs). When you have to resync the RAID, it manuevers through all the disks and reads sectors that maybe weren't read in a long time.
Anyway, while you're resyncing a new disk, bad parts of the old disks make themselves visible. You can catch these usually by running a scrub maybe a few times a year. Running the scrub will help you find disks that have problems sooner than later.
Also, you should always have a backup of your important data. A single point of failure is simple that.
Hi,
Personally I recommend using X-RAID2 dual-redundancy (or Flex-RAID RAID-6) rather than the default X-RAID2 single-redundancy (uses RAID-5).
Dealing with a life support problem is beyond the scope of what we would deal with on the community.
You should contact support and enquire about what it would cost for support to look into this for you.
It's important to proceed vary carefully with problems like this.You may end up needing to restore your data from backup (assuming you have one).
You should download your logs so you can provide the zip file to support.
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