Please help to find reasons for sudden reboots

[drnicolas]

I am using a ZFS configuration with my NAS.

More or less for testing and as a proof of concept, I created several ZF S datasets and a ZFS volume a few nmonths ago.

My special problems seems to come from one of the datasets named 'BACKUPS'. This dataset is shared as a CIFS share.

The next thing to remember is the ZFS dataset which is exposed via iSCSI.

Both are used as a disk based backup device by backup exec.

Backups to the ZFS volume/iSCSI seem to work fine.

Another thing is usinge the CIFS share as a backup:
After some time or different Gbs backed up I see sudden reboots ! Therefore the backups fail with "unexpected network errors".
So far, I was not able to find any reason.

For me the ZFS seems to be okay.

Code: Select all

Last login: Sun Feb  8 23:14:53 2015 from 192.168.1.21
Welcome to NAS4Free!
hp-nas: ~ # zfs list
NAME                 USED  AVAIL  REFER  MOUNTPOINT
vStorage            4.07T  1.30T  46.2M  /mnt/vStorage
vStorage/B2Dext     2.38T  1.30T  2.38T  -
vStorage/BACKUP     1.19T   577G  1.19T  /mnt/vStorage/BACKUP
vStorage/EMULE      16.3G  13.7G  16.3G  /mnt/vStorage/EMULE
vStorage/FAXARCHIV   476M  24.0M   476M  /mnt/vStorage/FAXARCHIV
vStorage/GUTACHTEN  13.6M   286M  13.6M  /mnt/vStorage/GUTACHTEN
vStorage/Projekte   1005M  14.0G  1005M  /mnt/vStorage/Projekte
vStorage/SCANS      6.24M  93.8M  6.24M  /mnt/vStorage/SCANS
vStorage/SOFTWARE    180G  69.7G   180G  /mnt/vStorage/SOFTWARE
vStorage/VMs         280G  19.8G   280G  /mnt/vStorage/VMs
vStorage/media      26.8G   473G  26.8G  /mnt/vStorage/media
hp-nas: ~ # zpool status -v vStorage
  pool: vStorage
 state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
        still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
        the pool may no longer be accessible by software that does not support
        the features. See zpool-features(7) for details.
  scan: scrub repaired 0 in 19h25m with 0 errors on Wed Jan 14 20:25:22 2015
config:

        NAME          STATE     READ WRITE CKSUM
        vStorage      ONLINE       0     0     0
          raidz1-0    ONLINE       0     0     0
            ada0      ONLINE       0     0     0
            ada1.nop  ONLINE       0     0     0
            ada2      ONLINE       0     0     0

errors: No known data errors
hp-nas: ~ #

Also I managed to get persistent log. But theres is nothing special right before the reboot.

Only strange SMB messages


Can someone help me ?

[gwalborn]

What are the device names of your ethernet interface(s)?

[drnicolas]

There is only one: em0

[Barnabas]

Please post your system specs (firmware, hardware, etc)

[drnicolas]

It is a HP N54L with 12GB ECC-RAM; Build is 1283

The only thing I have seen is as slowly but constant rising µC-Temp while doing the backups;
Yesterday it ended up with 50.7° C but no reboot was seen. (Which is new )

[ChriZathens]

AFAIK N54L does not normally support more than 8GB Ram.
There are configurations with 16GB Ram that work without issues, but with specific Ram types.
Perhaps you could leave it with only 8GB ECC and see what happens?

[Princo]

If Memory is healthy, than it's a swap issue.
I wrote about it in the german section of this board: viewtopic.php?f=29&t=8229#p50248
Regards
Princo

[drnicolas]

It has been several weeks since my last posting:

As staded before, i ran a config with 12Gb (4+8) ECC-RAM and had sudden reboots only during Long backup sessions.
The reboots came at varying moments of the backup, sometimes a few minutes after start, sometimes 2 hours later.

I was ordered to run memtest to find RAM-issues. Nevertheless I did so and memtest succeeded with standrad config.

I was thinking it is not a RAM-issue, but then tried the "F2" Option in memtest which uses all CPU-cores - and the Computer freezes after 8 or 9 minutes!

The I removed the 4G RAM - same Problem
Only with the original 4G RAM-stick memtest succeded under all conditions - and the reboots no more occurred.

Are there RAM-Settings available which make my 8G RAM-stick work ? It is a Kingston stick with same specifications than the original 4G

I have a HP N54L

[Lee Sharp]

A lot of branded computers have specific (and non-published) memory requirements. According to Kingston, it only supports the KTH-PL316E/8G or the KTH-PL313E/8G so if it is not one of those...

http://www.kingston.com/us/memory/searc ... erver_Gen8

[ChriZathens]

It also supports the KTD-PE313E which I am guessing are exactly the same memory, validated for Dell poweredge servers.
I have those in my backup NAS (n40l) - I currently have one dimm, but had two for almost two years- and facing no issues whatsoever. ..