-- 


> -----Original Message-----
> From: veritas-bu-bounces at mailman.eng.auburn.edu 
> [mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf 
> Of WEAVER, Simon
> Sent: July 19, 2006 2:15 AM
> To: 'Asiye.Yigit at gantek.com'; veritas-bu at mailman.eng.auburn.edu
> Subject: Re: [Veritas-bu] Drive Type
> 
> If I understand the question correctly, if you set a drive 
> which is usually
> HCART3 and then change to HCART2, NetBackup treats the drive 
> as HCART2 - but
> I do not think it will load any HCART3 tapes in the robot.

True.

> 
> The reason why I say this, is because I had to perform a 
> restore using an
> old HCART tape - drives are set for HCART3 - if the density 
> is not changed,
> Netbackup refuses the restore.

Exactly, unless you have one drive in the robot configured same as the
tape.

> 
> If I change the density to HCART, netbackup uses the drive 
> for the restore
> from HCART tape.

Yes....keep in mind, if your aligning HCART -> LTO1 and HCART3 ->
LTO3....the LTO3 drive can read the LTO cart, but cannot write to
it......if you leave your system configured such that an LTO3 drive and
an LTO1 cart are configured as the same type, you will get errors when
Netbackup eventually tries to put that tape in that drive to write to
it.

It would be nice to be able to define the hierarchical backward
compatibility of media/drive types......

Paul
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