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Kadir_Ovac_kl_'s avatar
Kadir_Ovac_kl_
Level 2
11 years ago

When too much process on appliance, randomly some of database backup fails at the middle of process

Hello, Firstly, this is a big company, nearly 20-25 TB data is backedup as weekly full backup. I think the problem occurs when i have duplication and backup processes at the same time. Randomly so...
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  • Mark_Solutions's avatar
    Mark_Solutions
    11 years ago

    The tuning on the first link wll help you - some will need acces to the O/S on the appliance, some can be done through the CLISH and web GUI

    The advice i gave on the other thread is very valid too - keep an eye on your queue and manually process it regularly to kep it down

    Upgrading to 7.6.0.2 will also help you greatly as the standard tuning is all done in that version and the de-dupe engine is greatly improved

    Of course restricting the number of jobs running at any one time may help

    7.6 also provides the SLP window .. so you can schedule your SLPs to run the duplication during the day to prevent the overload when your backups are running

    If possible get to 7.6.0.2 but if not process your queues regularly (crcontrol --processqueue) and use some of the appliance tuning shown in the first thread

    Hope this helps

Kadir_Ovac_kl_'s avatar
Kadir_Ovac_kl_
Level 2
11 years ago

Hi Mark,

Thank you for your very fast reply.

At least 2 months later, nbu will be upgraded, so, i need a different solution.

Full backup is taken once a week, on saturday, and 3rd copy of this backup duplicates on tape. Tape library has 2 drivers, so, 3rd copy duplication finishes on wednesday. i face this problem only sunday, monday, and tuesday. If i killed all duplication jobs, i dont face these errors.

 

Duplication jobs are tried to delay by using LIFECYLCE_PARAMETERS and crontab. Also rebase state is off automatically by crontab on saturday and sunday.

 

i actually did 2nd link changes on LIFECYLCE_PARAMETERS on master server. According to my observation normally daily duplications finish until 8am, after these changes this jobs dont finish until 10am. Also i faced with 83,84 errors on duplication jobs.

First link has different changes on appliance, actually i am a little afraid, if i do this changes, can i face with bigger problems?

 

Thanks