Home » Server Options » RAC & Failsafe » ADDING RAW DISKS TO ASM DISK GROUP (RAC 10G)
ADDING RAW DISKS TO ASM DISK GROUP [message #468974] Mon, 02 August 2010 15:24 Go to next message
kumarwm
Messages: 4
Registered: December 2009
Location: UK
Junior Member
Hi;

We have a two node Oracle 10g RAC for the Development (i.e. DEV1 , DEV2)and another two node 10g RAC for the Production. When, I was looking through the DEV Cluster; I found that there will be a need to add some more RAW disks to the existing ASM DISK Groups.

Below is the output of the ASMCMD -P and followed by the LSDG Command (I am only enclosing the needed columns) :

Usable_file_MB NAME
-------------- -------
256602 DWDATA/
126722 DWINDX/
91885 DWREDO/

The above is an Extended RAC Cluster. I would like to add more disk space for the DWREDO Disk Group.

Below is the output for the V$ASM_DISK :
----------------------------------------

DEV1 - FAILGROUP
----------------
DWDATA1
DWREDO1
EMCDATA2
EMCINDX1

GROUP_NUMBER DISK_NUMBER NAME FAILGROUP
------------ ----------- ------ -----------
2 0 DWDATA1 DWDATA1
3 0 DWREDO1 DWREDO1
2 1 EMCDATA2 EMCDATA2
6 0 EMCINDX1 EMCINDX1

DEV2 - FAILGROUP
----------------
DWDATA1
DWREDO1
EMCDATA2
EMCINDX1

GROUP_NUMBER DISK_NUMBER NAME FAILGROUP
------------ ----------- ------ -----------
2 0 DWDATA1 DWDATA1
3 0 DWREDO1 DWREDO1
2 1 EMCDATA2 EMCDATA2
6 0 EMCINDX1 EMCINDX1


Just in case, if I have to add some Raw Disks to the DWREDO
-----------------------------------------------------------
(ASM) Group :
-------------

ALTER DISKGROUP DWREDO ADD
failgroup DWREDO1 disk '/dev/rdsk/SDX01' name DWREDO1
failgroup DWREDO1 disk '/dev/rdsk/SDX02' name DWREDO1;

[The RAW Disks coming from two different disk arrays to facilitate the Extended RAC Scenario and this is setup as Normal Redundancy.].

I would like to know if the above syntax is correct ?

Many Thanks
===========

Re: ADDING RAW DISKS TO ASM DISK GROUP [message #468980 is a reply to message #468974] Mon, 02 August 2010 16:38 Go to previous message
BlackSwan
Messages: 21967
Registered: January 2009
Senior Member
>I would like to know if the above syntax is correct ?
It is correct if no errors returned.
If you get error, then it is not correct.
Why did you not try it yourself?

It would be helpful if you followed Posting Guidelines - http://www.orafaq.com/forum/t/88153/0/
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