Good point, never thought that netbackup did not know when the drives
were being cleaned. This explains allot! I have Storagetek L700 robots
and use hardware based cleaning. How can I switch this to get netbackup
to clean the drives after xx hours of use? 


Greg

Greg 

-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of David
Kerrivan
Sent: Thursday, March 15, 2007 1:22 PM
To: veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Drive Cleaning Frequency for SSO Drives

Actually, flip that around.
Library based cleaning can cause NB to down drives if it tries to mount
a tape in a drive being cleaned by the robot. The robot doesn't tell NB
that it's cleaning the drive, so NB thinks the resource is avail,
discovers it's not, and downs the drive.

If you have a "dirty" environment and enough drives do this, you could
be faced with your backups not succeeding in their window. 

Of course, with Tape Alert (supported by pretty much all vendors) you do
have to keep an eye on your cleaning tapes so that they don't run out
and that is a manual process. (job security :-) )

David Kerrivan

 

-----Original Message-----
From: Mike Kiles [mailto:mikekiles at yahoo.com]
Sent: Thursday, March 15, 2007 11:55 AM
To: Ellis, Jason; veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Drive Cleaning Frequency for SSO Drives

Frequency based cleaning is not supported on SSO drives. Preferred
methods are in order of preference:

1. Library based cleaning
2. Tape Alert

Cheers

MK
--- "Ellis, Jason" <Jason.Ellis at indymacbank.com>
wrote:

> Is there a why to specify the cleaning frequency on SSO drives? The 
> cleaning frequency setting under Device Monitor, accessed by 
> right-clicking on the drive and selecting Drive Cleaning > Set 
> Cleaning Frequency, is grayed out on all our SSO drives.
> Additionally there does
> not seem to be a way to change the attributes of the tape drive to 
> specify a cleaning frequency from the Change Drive dialogue box for 
> our SSO drives.
> 
>  
> 
> What is the recommended procedure for setting drive cleaning frequency

> on SSO tape drives? Have the library perform this function? Or do we 
> need to remove and re-add all out tape drives to specify the cleaning 
> frequency when first added?
> 
>  
> 
> Jason Ellis
> Technical Consultant, Data Protection Team IndyMac Bank, La Mirada 
> Datacenter
> Phone: (714) 520-3414
> Mobile: (714) 889-8734
> 
>  
> 
> > _______________________________________________
> Veritas-bu maillist  -
> Veritas-bu at mailman.eng.auburn.edu
>
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> 



 
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