[OpenIndiana-discuss] server hangs

[Roman Naumenko]

Well, might be the reason. 8 drivers is certainly limit too much for a 
stock psu. But there should be some traces, no?
How did you figure out the reason for errors on your system?

--Roman

Daniel Kjar said the following, on 31-08-11 9:43 PM:
> Careful... are you overtaxing your power supply?  My 148 system was 
> behaving like that when I put too many drives in an ultra 20.
>
> On 8/31/2011 7:48 PM, Roman Naumenko wrote:
>> Hi,
>>
>> I have SunOS 5.11 oi_148 installed on my storage server with 8 disks 
>> in raidz2 pool.
>> It hangs about once in a week and I had to restart it.
>> Can you help me troubleshoot it?
>>
>> It has some zfs volumes shared over nfs and afpd. (afpd is 
>> unfortunately a development version to satisfy OSX Lion).
>>
>> roks at data:~$ afpd -V
>> afpd 2.2.0 - Apple Filing Protocol (AFP) daemon of Netatalk
>>
>> afpd has been compiled with support for these features:
>>
>> AFP3.x support: Yes
>> TCP/IP Support: Yes
>> DDP(AppleTalk) Support: No
>> CNID backends: dbd last tdb
>> SLP support: No
>> Zeroconf support: Yes
>> TCP wrappers support: Yes
>> Quota support: Yes
>> Admin group support: Yes
>> Valid shell checks: Yes
>> cracklib support: No
>> Dropbox kludge: No
>> Force volume uid/gid: No
>> ACL support: Yes
>> EA support: ad | sys
>> LDAP support: Yes
>>
>> It also has time-slider enabled, which is pretty buggy peace of hmmm 
>> software, but it shouldn't cause server to crash or hang.
>>
>> So the problems start with nfs and/or afpd timeouts on clients, but I 
>> still can ssh to the server. Can't read any files or logs though.
>> Then network service disappears in a minute or few minutes, console 
>> becomes frozen and I have to do hard restart at that point.
>>
>> Where should I look to understand what causing this?
>> Since I can't reproduce the problem, I'd like to get prepared when it 
>> happens next time.
>> I couldn't find anything unusual in the logs after restart.
>>
>> time-slider complains for some reason about space on rpool
>> Aug 31 19:41:36 data time-sliderd: [ID 702911 daemon.notice] No more 
>> hourly snapshots left
>> Aug 31 19:41:36 data time-sliderd: [ID 702911 daemon.warning] rpool 
>> exceeded 80% capacity. Hourly and daily automatic snapshots were 
>> destroyed
>>
>> Where does it see 80%?
>>
>> $ df -h
>>
>> Filesystem            Size  Used Avail Use% Mounted on
>> rpool/ROOT/solaris    5.5G  3.0G  2.6G  54% /
>> swap                  1.4G  396K  1.4G   1% /etc/svc/volatile
>> /usr/lib/libc/libc_hwcap1.so.1 5.5G  3.0G  2.6G  54% /lib/libc.so.1
>> swap                  1.4G  8.0K  1.4G   1% /tmp
>> swap                  1.4G   52K  1.4G   1% /var/run
>> rpool/export          2.6G   32K  2.6G   1% /export
>> rpool/export/home     2.6G   33K  2.6G   1% /export/home
>> rpool/export/home/usr1 2.6G   38K  2.6G   1% /export/home/usr1
>> rpool/export/home/usr2 3.0G  385M  2.6G  13% /export/home/usr2
>> rpool                 2.6G   48K  2.6G   1% /rpool
>>
>>
>> --Roman
>>
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>