I believe you also do it between Delaware, and Weeeeehawkin, NJ. Which
makes me wonder about the 32 mile statement?? I know the replication was
there. I may be incorrect about the geog.
bobbee
From: "Juch, Robert" <[EMAIL PROTECTED]>
Reply-To: MQSeries List <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: Backing up "Q" files but not the "LOG" files
Date: Thu, 18 Nov 2004 11:44:31 -0500
IBM's fiber connections can now be 32 miles long.
We mirror (not through ficon) our mainframes to both Long Island and
Maryland.
R?S
Bob Juch
Citigroup
MQ Mainframe Support Team
Weehawken, NJ
201-974-2147
mailto:[EMAIL PROTECTED]
-----Original Message-----
From: MQSeries List [mailto:[EMAIL PROTECTED] Behalf Of
Christopher Warneke
Sent: Thursday, November 18, 2004 10:58 AM
To: [EMAIL PROTECTED]
Subject: Re: Backing up "Q" files but not the "LOG" files
Kulbir,
Sounds like what you really need is a redundant DASD
solution and a DR center that is close enough to you
to mirror disks at both sites.
EMC and IBM both have technologies that support
having the data centers some distance from each other.
Shared Queues on z/OS can be 27km apart (I've heard
that IBM has extended this, not sure how far). QSGs
employ m/f coupling facilities so, my bet is that the
Mirrored DASD solutions require closer proximity, for
performance sake.
Years ago, 2001, I worked for a bank that had a
primary data center in Jersey City, NJ and a secondary
data center in Manhattan, NYC. Several miles of
fiberconn connected the 2 data centers. EMC DASD was
mirrored at both sites. Both OS/390 and AIX 4.3.3
machines were supported. Failover worked quite well -
the solution was without significant performance
impact.
I'm not sure that the solution that you're
attempting to implement will perform well over 3k
miles. What kind of DASD solution are you employing?
What vendor/product? Do you have databases that are
being replicated across both sites as well?
Lemmeknow,
Chris
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