Paul,

we speek about a VTL, not backup to disk or something similar. If the data is 
not in the VTL cache, the VTL will pull the data from fc attached tapes by 
itself... NetBackup only sees virtual tape drives, regardless of where the data 
is stored! 

... staging the data in to the VTL cache may take a couple of minutes (10), 
leading to the described phenomenon... and timeouts do not really work... 

M.

 
On Thursday, September 21, 2006, at 08:12PM, Paul Keating <pkeating at 
bank-banque-canada.ca> wrote:

>My point, I suppose, is that if your data isn't on the VTL, it should be on 
>tape.
>Netbackup should already know this, and pull the data direct from the tape.
>
>A higher timeout would treat the symptom, but this whole idea of pulling the 
>data back from tape to the VTL exacerbates the problem which most people 
>implement VTL to cure....namely time to restore.
>
>Paul
>
>-- 
>
>
>> -----Original Message-----
>> From: mirko_nbu at mac.com [mailto:mirko_nbu at mac.com] 
>> Sent: September 21, 2006 1:55 PM
>> To: Paul Keating
>> Cc: veritas-bu at mailman.eng.auburn.edu
>> Subject: Re: [Veritas-bu] Windows 2003, NBU 6.0MP3, VTL, 
>> Media Mount Timeout
>> 
>> 
>> Paul,
>> 
>> I wonder too :-( Mainly a timeout of more than 5 minutes 
>> would help, but as explained, the NBU internal timeout does 
>> not seem to work... 
>> 
>> Help appreciated :-)
>> 
>> 
>> Cheers, 
>> 
>> Mirko
>> 
>> 
>>  
>> On Thursday, September 21, 2006, at 07:43PM, Paul Keating 
>> <pkeating at bank-banque-canada.ca> wrote:
>> 
>> >I'm wondering what kind of (mis)configuration is responsible 
>> for media
>> >having to be pulled back to the VTL to do a restore.
>> >
>> >Sounds painful.
>> >
>> >Paul
>> >
>> >-- 
>> >
>> >
>> >> -----Original Message-----
>> >> From: veritas-bu-bounces at mailman.eng.auburn.edu 
>> >> [mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf 
>> >> Of mirko_nbu at mac.com
>> >> Sent: September 21, 2006 12:46 PM
>> >> To: veritas-bu at mailman.eng.auburn.edu
>> >> Subject: [Veritas-bu] Windows 2003, NBU 6.0MP3, VTL, Media 
>> >> Mount Timeout
>> >> 
>> >> 
>> >> Hi all,
>> >> 
>> >> another kind of a problem, that may be a bug in NBU? Expert help 
>> >> appreciated! 
>> >> 
>> >> We're using NetBackup 6.0 on a Windows 2003 Server Master Server. 
>> >> The Server is connected to a FJS CentricStore VTL, emulating 
>> >> 8 Exabyte 
>> >> Mammooth drives with a capacity of 20Gb each. The drives are 
>> >> integrated 
>> >> into a NBU logical library using TL8 as the drive 
>> controlling type... 
>> >> 
>> >> The problem: 
>> >> Whenever a media is requested, that does not reside in the 
>> >> VTL cache, the 
>> >> media content has to be staged in transparently by the VTL 
>> >> software, leading 
>> >> to an NBU robot error media timeout message! We tried to 
>> >> increase the MEDIA_MOUNT_TIMEOUT using the GUI, but the 
>> >> timeout still appears after 6 minutes, 
>> >> regardless of the setting... the windows system log complains 
>> >> about a sempahore 
>> >> timeout! To me it seems like the MEDIA_MOUNT_TIMEOUT is not 
>> >> working correctly or 
>> >> is it only suitable for ACS managed or other drive? Maybe 
>> >> there is also some different configuration setting on the 
>> >> Windows or TL8 side? 
>> >> 
>> >> Besides this we wonder about the fact, that mounting of the 
>> >> tape media is beeing retried using another tape drive. Is 
>> >> there any configuration value that controls this? We already 
>> >> experimented with "Restore Retries = 0" & "Retry Interval =1"...
>> >> 
>> >> Thanks for help! 
>> >> 
>> >> Kind regards, 
>> >> 
>> >> Mirko 
>> >> 
>> >> 
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>> Herzliche Gr??e,
>> 
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>> 
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