RE: Data Mirroring on two data centers -- How to use ASM ?

  • From: "Goulet, Dick" <DGoulet@xxxxxxxx>
  • To: <db.mail.1@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 18 May 2006 14:22:40 -0400

Madhu,
 
    I'm not sure if you can use AIX Volume manager with ASM.  I doubt
it.  I did my RAC install on RedHat so used the Oracle cluster software,
cluster ready services I believe it is called.  It installed very nicely
so I would want to do the same thing next time as well.  As for
striping, if you don't want ASM to do the striping for you, like I did
not, you can choose to have that managed externally.  It's a simple
check box in the installer.

  _____  

From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Madhu V
Sent: Thursday, May 18, 2006 2:00 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Data Mirroring on two data centers -- How to use ASM ?


Hello All,

We are planning on testing a two node 10g RAC using ASM for one of our
database on pSeries using AIX 5.3. We have a primary requirement of
mirroring data across TWO data centers (Hitachi SAN).  I have two
questions 

1. Mirroring.

   Can we use AIX Volume Manager to take care of the mirroring or ASM to
do mirroring. I am specifically looking for HOW and WHY?

2. Striping

    I have seen a similar post just a few days ago on ASM striping,
although i couldn't understand much of it (Pardon my knowledge on disk
technologies). Our storage folks told me that, they have a huge disk
cache (128 GB) and very high performing SAN (HDS 9980) w/ excellent
algorithm for striping the LUNS across multiple disks. So HOW best I can
use ASM striping along w/ HDS storage striping? or will it cause any
performance problems??

Please advise me...

Good Day,
Madhu


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