RE: ASM
- From: "Tony Johnson" <Tony_Johnson@xxxxxxxxxxx>
- To: <RASTEIN@xxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 3 Nov 2004 09:20:51 -0800
My understanding is that you should set up your RAID ( of course RAID1
for the best performance ) at the hardware level and then set up your
disc groups across the remaining 20 available discs. Best practices at
this point seem to be to put all tables and indexes together in the same
disc groups. If you are running RAC then you need ASM on each server. =20
Tony Johnson
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Steiner, Randy
Sent: Wednesday, November 03, 2004 8:13 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: ASM
I am planning the migration of my data warehouse to new blade servers
with 10g on Linux. I have a san with forty 72 gig drives. I am
confused about how to setup the fault tolerance with the ASM. Do I
setup raid at the hardware level and then use ASM or should I just give
ASM all the disks and use software level raid?
=20
Also, when creating disk groups with ASM, should I create one group for
all 100 gigs of data and another group for indexes? Do I want 1 large
group or several smaller ones?
=20
Also, if I have 4 blade servers, is there one ASM instance on the SAN or
does each blade need a local ASM instance?
=20
Thanks
Randy
=20
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