Networker

Re: [Networker] Multipath to our new Scalar i500 Library

2009-10-26 13:28:19
Subject: Re: [Networker] Multipath to our new Scalar i500 Library
From: Rudy Munguia <rudymunguia AT ROCKETMAIL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 26 Oct 2009 10:24:25 -0700
You will want to install your multipathing agents. This will ke
Hello,

You will want to install your multipathing agents. This will keep track of the 
active path ( some will even allow the two paths to be used simultaneously ) 
and only present a single device instance to the OS, you can then point 
Networker at this device instance, and it should only see 1 instance of each 
drive.

Your mileage may vary based on the revision of networker you have implemented, 
older revisions will want to use their own device drivers to address the drives 
directly which will interfere with the multipathing agents.

Rudolfo




________________________________
From: Manel Rodero <manel AT FIB.UPC DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Sent: Mon, October 26, 2009 4:04:49 AM
Subject: [Networker] Multipath to our new Scalar i500 Library

Hello,

We've recently purchased an Scalar i500 library from Quantum (including the I/O 
Blade module too).

Our library has 2 LTO-4 FC drives connected to our backup server through the 
I/O blade. Our backup server has 2 x HBA QLE2460 (1 port each one) so we can 
connect the 2 host output of the I/O blade to the 2 ports on the server.

But, as expected, under Windows (we're using Windows Server 2008) we see 4 
drives (instead of 2) and 2 libraries (instead of 1) as them are presented by 
two paths.

As I'm very new to all the SAN concepts, zones, failover, etc. I would like to 
ask for some tips about how to set this environment for having dynamic 
multipath for every drive and the library.

If I change some settings in the library I finally got it presenting to the 
host only 2 drives + 1 library (something related to poin-to-point and failover 
ports). But, if I configure Legato using these settings, when we disconnect one 
FC and the library presents the drives using another path, Legato see the 
drives with another name (i.e. initially \\.\Tape0 and \\.\Tape1 and after the 
change as \\.\Tape2 and \\.\Tape3).

So I suppose I need to use aliases, isn't it? Or must I install multipath 
software in Windows Server 2008? I've installed the optional feature but I 
don't know how to continue with this setup.

If someone can give me some tips/info about what to read or look for, I'll be 
very grateful.

Thank you very much!

-- 
       Manel Rodero Blánquez
o o o  IT Systems Manager
o o o  Laboratori de Càlcul
o o o  Facultat d'Informàtica de Barcelona
U P C  Universitat Politècnica de Catalunya - Barcelona Tech

       E-mail : manel AT fib.upc DOT edu
       Tel.   : +34 93 401 0847
       Web    : http://www.fib.upc.edu/

======================================================================

Abans  d'imprimir aquest missatge, si us plau, assegureu-vos que sigui
necessari. El medi ambient és cosa de tots.

--[ http://www.fib.upc.edu/disclaimer/ ]------------------------------

ADVERTIMENT  /  TEXT  LEGAL:  Aquest  missatge pot contenir informació
confidencial  o  legalment protegida i està exclusivament adreçat a la
persona  o entitat destinatària. Si vosté no es el destinatari final o
persona  encarregada  de  recollir-lo, no està autoritzat a llegir-lo,
retenir-lo, modificar-lo, distribuir-lo, copiar-lo ni a revelar el seu
contingut.  Si ha rebut aquest correu electrònic per error, li preguem
que  informi  al  remitent  i elimini del seu sistema el missatge i el
material annex que pugui contenir. Gràcies per la seva col·laboració.

To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
[email protected] you have any problems with this list. 
You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER





To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
networker-request AT listserv.temple DOT edu if you have any problems with this 
list. You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER

<Prev in Thread] Current Thread [Next in Thread>