Netbackup has a media mount timeout set on the master.
In the past I found that Netbackup starts to count down the
timeout interval prior to even attempting the mount request.
I noticed cases where the mount request would be visible
in the Activity Monitor, however there would be no drives to
satisfy the request. The backup would eventually fail after media
mount timeout has elapsed. However, if a drive became available
prior to the media mount timeout expiring, the mount would succeed.

So, from my experience its usually saying to you
"theres no drive available at this time" error.

You can try two things.

The easy option which may bite you later on.
Set the media mount timeout on the master to something very high (i.e. 7
hour)

The not so easy option. Revise your backup windows such that there are
drives available when backups run.

Regards
Peter Marelas

> -----Original Message-----
> From: Burrage, Keilani BGI SDC [SMTP:Keilani.Burrage AT barclaysglobal DOT 
> com]
> Sent: Monday, July 02, 2001 5:01 AM
> To:   'veritas-bu AT mailman.eng.auburn DOT edu'
> Subject:      [Veritas-bu] Error Code 52: Receiving a lot of these with my
> SSO backups.
> 
> Current Environment:
> *     Solaris2.6 NBU Data Center 3.4
> *     Patches J0850645 & P08500697
> *     ATL P3000 (DLT7000)
> 
> I started receiving status code 52 after upgrading my DLT drives to fiber
> &
> multihosted.  I configured SSO on seven SAN servers.  (This is a mix of
> SUN
> & WIN2000 servers.)  At times these backups do not release the drive it is
> using even if the backup completes successfully.  At other times the
> backups
> fail with error code 52 even though there are drives available.  This is
> beginning to affect my LAN backups.  They too are receiving 52s from time
> to
> time.  If I do not run SAN (SSO) backups the problem goes away.
> Unfortunately I need to run SAN backups.
> 
> Has anyone experienced this?  What is causing this error?  HELP!
> Keilani Burrage
> Operations Analyst
> IT Operations
>  voice *  (916) 463-6378 Desk
> voice *  (916) 798-5081 Cell
> e-mail *  keilani.burrage AT barclaysglobal DOT com
> 
> 
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