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Conference cookie::mru

Title:MRU Internal Bug Reports
Moderator:COOKIE::STMARTIN
Created:Wed Sep 20 1995
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:346
Total number of notes:1175

333.0. "master/slave configurations" by NNTPD::"lance@stl.dec.com" () Tue Apr 29 1997 07:19

Hello MRU guru's

A customer of mine is wanting to know the answer to the following.

We have two TL822's which we intend to join together in a master/slave
configuration. We also have Media Robot Utility v1.1 which we intend 
to use, via Digital Unix 3.2G, to drive the robots. The SPD for MRU 
says that TL822's are supported, but does not say if the master/slave 
config is OK.

Can anyone help me.

Thanks in advance

Lance Gardner
Customer support Center Sydney

[Posted by WWW Notes gateway]
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333.1SSDEVO::ROLLOWDr. File System's Home for Wayward Inodes.Tue Apr 29 1997 12:2016
	If you install the Multi-tower, single LUN firmware and run 
	them in that configuration, MRU V1.1 will work (mostly).  Such
	a configuration wasn't possible until well after V1.1 shipped,
	which is why it isn't in the SPD.  With V1.2 coming this summer
	(probably) there wasn't any pressing need to update the SPD.

	There are a couple of things that break when the MUSL firmware
	is used with V1.1.  Both occur as a result of the Pass-through
	mechanism becoming an Transport instead of port.  If you happen
	to get a tape stuck on the PTM, "eject port" won't clear.  And,
	you can't do bar-code checking on an inject command:

		robot inject slot # cart ______ robot /dev/whatever

	The last is an undocumented feature, so you probably won't
	see it much.
333.2labelingNNTPD::"lance@stl.dec.com"Tue May 06 1997 03:569
How are the cartridges labeled ?

0-263 twice OR 0-527

Thanks

Lance.

[Posted by WWW Notes gateway]
333.3SSDEVO::ROLLOWDr. File System's Home for Wayward Inodes.Tue May 06 1997 06:045
	The cartridges are labeled with their bar-codes...  Just being
	precise...  The slots and drives are numbered as one big
	robot.  With two 264 slot towers you get 0-537 for slots and
	0-5 for drives.  The ports are unchanged and the PTM becomes
	a transport.