Yep, fragment size is set at 20GB on 3592-E05 drives
On Sat, Oct 18, 2008 at 8:47 AM, oersted
<netbackup-forum AT backupcentral DOT com> wrote:
>
> do you have fragment size set on your storage units to something other than
> default?
>
>
> Dean wrote:
>> I am sitting here at home on a Friday night watching the backups run
>> (yeah, I have no life), trying to get an idea about how the
>> performance is going, and trying to help a DBA narrow down a
>> performance problem. I have 3 backups running at the moment (things
>> haven't really kicked off yet). Everything was going fine - I was
>> seeing 60 MB/sec from the main client I am interested in, and about 20
>> MB/sec from the other two, which is all good.
>>
>> Then suddenly everything freezes. It has been about half an hour and
>> nothing has happened.
>>
>> The only error message I see is this one....
>>
>> 1224235829 1 2 16 melrhnbu02 0 0 0 *NULL* bptm Error occurred during
>> initialization. Could not read logging configuration file.
>>
>> (that is from a media server which is not involved in the particular
>> backup I am intersted in, so is probably completely irrelevant)
>>
>> I also get lots of this :
>> bpcd/log.101708:07:43:53.526 [4941] <16> bpcd main: char_count = 7375,
>> .line_count = 55
>> bpcd/log.101708:07:43:57.112 [4954] <16> bpcd main: strlen(pProcList) = 7205
>>
>> GRRRR
>>
>> It;s extremely frustrating having watched a 100GB filesystem backup
>> tick up to about 90GB completed at 60 MB/sec, then everything freezes,
>> when I have a DBA waiting for me to tell him that everything looks OK
>> from the I/O side of things on his server. But I can't give him a
>> definitive answer, because EVERYTHING has locked up for me, from all 3
>> clients that are trying to backup at the moment.
>>
>> Oh NetBackup, why must thou smite me?
>>
>> Well, I was just about to send this email, and things have suddenly
>> started moving again. That's life with NBU, I guess. I should be used
>> to these mysterious lock-ups by now. But it's extremely frustrating,
>> especially when you're trying to do an I/O performance test.
>>
>> So, I guess I'll have to report to the DBA, the first 4 x 20GB
>> fragments ran at 60 MB/sec, but the last 20GB fragment ran at less
>> than 1 MB/sec. What is he going to make of that?
>>
>> NBU 6.5.2 on RHEL 4. Generally it's pretty stable for me, but random
>> lock ups like this continue to occur, as they have since I started
>> with NBU in the 3.4 days.
>>
>> Gehhh, just getting out my frustrations. Thanks for listening.
>> _______________________________________________
>> Veritas-bu maillist - Veritas-bu < at > mailman.eng.auburn.edu
>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>
> +----------------------------------------------------------------------
> |This was sent by solaris AT cablespeed DOT com via Backup Central.
> |Forward SPAM to abuse AT backupcentral DOT com.
> +----------------------------------------------------------------------
>
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
