What do you mean by disappear? What log files have you examined so far?
What does modinfo info show for sg? What's the frequency of tape devices
disappearing?  Also could you provide more information about you
environment physical/logical?

Thanks,
Chris Hall


-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Justin
Piszcz
Sent: Monday, October 22, 2007 12:55 PM
To: Dave Markham
Cc: veritas-bu AT mailman.eng.auburn DOT edu; Hudson,Steve
Subject: Re: [Veritas-bu] Solaris 10 with NBU 5.1 MP5 -- Tape
Drivesdisappearing

I remember having to do that back when I used Solaris in PROD backup 
environments, seemed to be what was needed.

On Mon, 22 Oct 2007, Dave Markham wrote:

> Im not sure if its still relevant for Solaris 10 but i remember in the
> device admin guide it mentions that solaris unloads the least used
> devices should the system be busy. These are usually tapes and so it
> recommends adding the following lines into /etc/system
>
> forceload: drv/st
> forceload: drv/sg
>
> Just a thought.
>
> Cheers
>
> Hudson, Steve wrote:
>>
>> Folks has anyone seen the issue we are seeing on Solaris 10. We have
a
>> Media Server that is at Solaris 10 with the Leadville Driver on the
>> HBA and we are running Netbackup Enterprise Server version 5.1 MP5.
>> Our tape drives keep disappearing from the O/S and the drives go
down.
>> Either a reboot or a running of the CFGADM utility
>>
>> Is necessary to get everything back. This is becoming quite painful.
>> It seems from what I have seen on this list most people are very
happy
>> with Solaris 10 and I am wondering if those folks are at NBU 6.0 MP4
>> or even NBU 6.5. Thanks in advance?.
>>
>>
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