RE: RAC ASM 10.2.0.1.0 Solaris 9
- From: "Lawie, Duncan" <duncan.lawie@xxxxxxxxxxxxxxxxx>
- To: "'roon987@xxxxxxxxxxx'" <roon987@xxxxxxxxxxx>, "Kurth, Michael J." <mkurth@xxxxxxxxxxx>
- Date: Wed, 1 Mar 2006 12:03:51 -0000
Hi,
have you seen MetaLink doc 271621.1 ? It gives details on building the
partitions for Solaris. I would guess that ASM doesn't much care whether you
have one 50G "disk" or 50 1G "disks".
The things you probably need to think about when deciding how to slice up the
space are
- Are you putting cluster config and voting disks on raw? If so, you'll need
separate partitions for these.
- Does the SAN provide redundancy? You can only change the redundancy of a
disk group by dropping/recreating a disk group.
- Do you want multiple disk groups to separate data from indexes or redo or
flash recovery? If so, you'll need at least one SAN disk for each of these.
- Do you want to have the flexibility to move disk space between disk groups?
If so, smaller disks allow you to remove a disk from one disk group and add it
to another.
HTH,
Duncan.
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On
Behalf Of Zabair Ahmed
Sent: 26 February 2006 16:26
To: Kurth, Michael J.
Cc: oracle-l@xxxxxxxxxxxxx
Subject: RE: RAC ASM 10.2.0.1.0 Solaris 9
Thks Mike,
What am finding confusing is the following statement (from Oracle Clusterware
and Oracle Real Application Clusters Installation Guide 10g Release 2 (10.2)
for Solaris OS - B14205-03), page 3-13 Configuring Database File Storage on
ASM and Raw Devices.
To use ASM with raw partitions, you must creatre sufficient partitions for your
data files, and then bind the partitions to raw devices.
The question is how does the sysadmin do this when all he has is 50GB of SAN
storage. I know this is more of unix question, but i can't get my head round
this. We are not using any LVM.
Also i presume you have installed your ASM instance in it's own ORACLE_HOME.
TIA
"Kurth, Michael J." <mkurth@xxxxxxxxxxx> wrote:
My environment is EVA8000 san running HPUX, where we configured 3 disk groups.
2 of them for staggering database files between 1 system and another, and the
3rd for
backups and archived logs. In other words:
diskgroup1 diskgroup2 diskgroup3
--------------- --------------- ---------------
database 1 database 2 backups/arch logs
database 3 database 4
database 5 database 6
Mike Kurth
Senior Oracle DBA
Wheaton Franciscan Services, Inc.
400 West River Woods Parkway
Glendale, Wisconsin 53212
414/465-4046 Phone
mkurth@xxxxxxxxxxx
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Zabair Ahmed
Sent: Sunday, February 26, 2006 5:17 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: RAC ASM 10.2.0.1.0 Solaris 9
Am trying to get my head round on how to configure the disk storage so that i
can use this for my ASM RAC database.
I've got in total 50GB on a HDS SAN (RAID5) to play with. My question is how
do i configure this so that i can use the storage for my ASM disk group(s).
Do i ask the sysadmins to create me a 50GB raw partition?
TIA
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