Bob Hetzel wrote: > First a quick note... drives LTO 2nd generation and newer should not > shoeshine unless you're really running way to slow a cpu for what else > is going on with the computer. > That is nice to know - Ive been doing lots of necessary things to avoid shoeshining it seems. > If the room air temp is less than 85 degrees or so it's unlikely in a > tape autoloader cabinet (i.e. good airflow by design) that you've got a > heat problem, imho.
The overland is a 2U unit sat in a regular 19 inch rack its very dense in there (24 tapes 2 drives and a robot) so I'm not sure about the airflow. Temperature as reported by the HP drives is 35 degrees C which corresponds to 95 fahrenheit . The ambient in the rack is about 29 (84) so its marginal. I've moved the library to a cooler area now (maybe 27 Celcius) and am nagging our CO-lo for better cooling. Will soon see if it makes any difference. > More likely is that you're filling up space > somewhere, have a scsi issue, perhaps you need a firmware update to your > library/drive, or need update to a more recent bacula server version due > to some of the various spooling and multi-drive autochanger related > bugs, or have a config problem. > > You should be able to put a thermometer near the drive to find out the > exact air temp near it. > > Also, have you considered spooling everything? I know this may slow > down your backups on fast servers but the increase gained in doing more > than one thing at a time may balance this, especially on incrementals. > I've certainly considered this but may need more spool space for the full backups. Thanks Very much Bob > >> Date: Wed, 27 Feb 2008 09:31:40 +0000 >> From: Bob Cregan <[EMAIL PROTECTED]> >> Subject: Re: [Bacula-users] Volumes marked with Error >> To: bacula-users@lists.sourceforge.net >> Message-ID: <[EMAIL PROTECTED]> >> Content-Type: text/plain; charset=ISO-8859-1; format=flowed >> >> Hi, >> I am running the following >> >> Director, Storage deamon 2.2.6. The library is an Overland Arcvault 24 >> (LTO3) >> Most clients (about 30 ~ 8TB in total) are 2.2.4 >> >> Backup are running through fine, but occasionally a volume is marked >> with status Error when it is nowhere near full. The backups using the >> volume at the time give no errors. Restores from the backups using the >> volume are also OK. >> >> I am losing a lot of tape capacity from this however sometime the tape >> is marked as Error when only a few Gig has been used. >> >> There is one thing that I thought may have a bearing. I am using a >> mixture of spooled and non spooled backups. Some of the backups are on >> old hardware, consist of lots of very small files (several million ~1Kb >> html files ) and the resulting very poor throughput can result in a big >> shoeshining problem - I generally spool these. Other ones are large >> database files with good throughput so I run these direct to tape. The >> spool files can be as big as 80Gb. >> >> The director allows four concurrent jobs, I have two tape drives one of >> which is generally Incrementals only the other Full backups only. >> >> Can there be a problem if a spool file is despooling and a "direct to >> tape" job also need to write to the tape? Should I spool all my jobs? >> >> Any advice would be very welcome. >> >> Thanks >> >> Bob >> >> > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users > > -- Bob Cregan Unix Systems Administrator 1 Riverside Court Lower Bristol Road Bath BA2 3DZ Tel: +44 845 0346734 Mobile: 07712388129 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
