The robotic drive number should be consistent.
Type Num Index Type DrNum Status Comment Name Path
Device Path
robot 0 - TLD - - - - /dev/sg/c5t0l1
drive - 0 hcart 1 UP - LTO-01 /dev/rmt/0cbn
drive - 1 hcart 2 UP - LTO-02 /dev/rmt/1cbn
drive - 2 hcart 3 UP - LTO-03 /dev/rmt/2cbn
drive - 3 hcart 4 UP - LTO-04 /dev/rmt/3cbn
The drive number is the 5th field in this "tpconfig -l" output. Robot 0
Drive 1 should be the same physical drive everywhere, even when the drive
index number is different.
There's no need for the /dev/rmt number to the the same as long as DrNum 1
on /dev/rmt/X consistently points to Robot 0, Drive 1.
The only way to get index numbers the same across all the media servers is
to build the library info into each server very carefully. I broke down to
the cmd-line to get it all consistent across all my unix-only environment.
-M
-----Original Message-----
From: Roland Gerlach [mailto:rgerlach AT acmi.net DOT au]
Sent: Thursday, June 24, 2004 6:37 PM
To: Donaldson, Mark - Broomfield, CO; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Log shows simulataneous use of one tape drive
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.
**********************************************************************
This communication contains information which is confidential and the
copyright of the Australian Centre for the Moving Image.
If you are not the intended recipient of this e-mail please notify the
sender immediately and delete it from your system.
Any views expressed in this message are those of the individual sender and
may not be the views of the Australian Centre for the Moving Image, unless
specifically stated.
**********************************************************************
This footnote also confirms that this email message has been swept by
MIMEsweeper for the presence of computer viruses.
**********************************************************************
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
