[Babase] Papio Information

Susan Alberts alberts at duke.edu
Fri Jun 12 07:05:49 EDT 2009


On Jun 11, 2009, at 11:28 AM, Ryan Hardy wrote:

> On Jun 10, 2009, at 6:14 PM, Karl O. Pinc wrote:
>
>> The one important take-away point that differs from the previously
>> explained backup plan is that backups are put into the backup system
>> only every other day.  We do keep the prior days backup, for 1 day
>> only, on disk on papio until it's overwritten by the next days  
>> backup.
>> So, in case of disaster we could lose 2 days of work.
>
> As it stands, the backups fire off at about 1:00am daily.  However,  
> that's not really guaranteed.  From my brief perusal of the logs, it  
> looks like papio generally completes around 2:30am or so.  The local  
> backup on papio is done through cron.daily, so it should be done  
> sometime around 4am.
>
> We could easily change the local backup to occur later in the day  
> (say, 11pm) so that it would complete before the tape backups fire  
> off.  That would minimize any potential data loss.  Or the script  
> could keep multiple copies of the local backup.  The former seems a  
> bit less work intensive, but neither would be particularly  
> challenging.  As you said, the data storage is really not too much  
> of an issue, since the local backups are compressed.
>

Thanks for these suggestions Ryan. Either of these sounds fine to me,  
but I would go with whatever Karl recommends.

Susan

--------------------------------------------------------
Susan Alberts, Dept of Biology, Duke University, Box 90338, Durham NC  
27708, 919-660-7272 (Ph), 919-660-7293 (Fax)






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