Veritas-bu

[Veritas-bu] Log shows simulataneous use of one tape drive

2004-06-24 21:49:24
Subject: [Veritas-bu] Log shows simulataneous use of one tape drive
From: dritschel62 AT yahoo DOT com (Douglas Ritschel)
Date: Thu, 24 Jun 2004 18:49:24 -0700 (PDT)
On the Master, run vmglob -listall 

or vmglob -listall -java

It will show you what each machine sees the drives as
and their serial numbers. The unique identifer is the
serial numbers of the drives. 


--- Roland Gerlach <rgerlach AT acmi.net DOT au> wrote:
> Now I'm really confused.  We have a mix of unix and
> windows media servers.  Even the unix media servers
> don't agree on the drive indexes.
> 
> There must be a unique identifier used between the
> robot controller and the media servers otherwise how
> does the system ensure that the tapes are loaded
> into the right drive?   
> 
> Is there any way to ensure that the media server
> have consistent drive index numbers?
> 
> Thanks in advance.
> 
> Cheers,
> Roland.
> --
> Tell me and I'll forget, show me and I may remember,
> involve me and I'll understand -- Chinese proverb.
> 
> 
> 
> -----Original Message-----
> From: Mark.Donaldson AT cexp DOT com
> [mailto:Mark.Donaldson AT cexp DOT com]
> Sent: Friday, 25 June 2004 10:11 AM
> To: Roland Gerlach;
> veritas-bu AT mailman.eng.auburn DOT edu
> Subject: RE: [Veritas-bu] Log shows simulataneous
> use of one tape drive
> 
> 
> Drive index numbers are assigned per media server. 
> While it's desirable to
> have each drive index number pointed at the same
> physical drive, I don't
> think it's required.
> 
> You might want to check the "tpconfig -l" output for
> each media server and
> see if you've got different physical drives assigned
> to same drive index
> number.
> 
> -M
> 
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On
> Behalf Of Roland
> Gerlach
> Sent: Thursday, June 24, 2004 5:05 PM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] Log shows simulataneous use of
> one tape drive
> 
> 
> We have a couple of shared backup drives on a few
> media server and I've
> noticed entries in the log where two media servers
> are supposedly using the
> same drive.  For example:
> 
> 06/24/2004 20:16:47 printsvr printsvr  begin writing
> backup id
> printsvr_1088072035, copy 1, fragment 1, to media id
> 000209 on drive index 2
> 06/24/2004 20:17:01 mailsvr mailsvr  begin writing
> backup id
> mailsvr_1088072034, copy 1, fragment 1, to media id
> 000075 on drive index 2
> 
> These two media server can't be using the same
> shared drive simultaneously
> and at that time drive index 0 was not mentioned in
> the log.  One of these
> two log messages is wrong - it should have reported
> drive index 0.
> 
> Does anyone have any idea on how to ensure that the
> logs are correct or are
> my shared drives confused?
> 
> Cheers,
> Roland.
> --
> Tell me and I'll forget, show me and I may remember,
> involve me and I'll understand -- Chinese proverb.
> 
> 
> 
> 
>
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