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Re: Fwd: [Linux-cluster] GFS and Oracle Clusterware




Today you will need to continue to use non-LVM2 RAW devices for Oracle 10G as the CRS voting disks, until we can work will Oracle to relax
their configuration requirements.

So, here is why CRS won't support ocr/vote files on LVM2 volumes.

When you map the volume to a raw device (so it is character special and not
block special), this should be the way to go:

Assigning devices:           /dev/raw/raw1  -->   /dev/mapper/redo1-logs1
/dev/raw/raw1:  bound to major 253, minor 4
         /dev/raw/raw2  -->   /dev/mapper/redo2-logs2
/dev/raw/raw2:  bound to major 253, minor 5

#/dev/raw$ file *
raw1: character special (162/1)
raw2: character special (162/2)

However, when I run hdparm:
#/dev/raw$ hdparm /dev/raw/raw1

/dev/raw/raw1:
HDIO_GET_MULTCOUNT failed: Inappropriate ioctl for device
readonly     =  0 (off)
readahead    = 256 (on)
HDIO_GETGEO failed: Inappropriate ioctl for device

The geometry call craps out on the inode.  This is why CRS fails. It has to
behave exactly like a raw device in order slip past the OCR ioctl() calls.

Rerunning CRS OUI:
w/  /dev/raw/raw1 for OCR (woo hoo)
w/  /dev/raw/raw2 for VOTE (woo hoo reprise)

Shak
w/ help from Jeff Needham

Jonathan E Brassow wrote:

You seen this one?  You're the one that knows all things Oracle, right?

 brassow

Begin forwarded message:

From: "Frazier, Darrell USA CRC (Contractor)" <Darrell Frazier crc army mil>
Date: January 19, 2006 2:26:22 PM CST
To: "'linux clustering'" <linux-cluster redhat com>
Subject: [Linux-cluster] GFS and Oracle Clusterware
Reply-To: linux clustering <linux-cluster redhat com>


Hello. I'm sorry to post this here but after quite a bit of research, no one using Oracle can give me an answer I am hoping someone on this list may have gone through this and give me a pointer. I have a 2 node cluster running RHEL4, RHCS and GFS with shared storage being an iscsi jbod. Since I am unable to use OCFS2 I was hoping GFS would provide the cluster filesystem. My problem is this: Oracle Clusterware installs fine until I need to run the root.sh in which case I get the following: [root opt2 crs]# ./root.sh
WARNING: directory '/u02/app/oracle/product/10.2.0' is not owned by root
WARNING: directory '/u02/app/oracle/product' is not owned by root
WARNING: directory '/u02/app/oracle' is not owned by root
WARNING: directory '/u02/app' is not owned by root
WARNING: directory '/u02' is not owned by root
Checking to see if Oracle CRS stack is already configured
Setting the permissions on OCR backup directory
Setting up NS directories
PROT-1: Failed to initialize ocrconfig
Failed to upgrade Oracle Cluster Registry configuration
The GFS partitions are mounted as so: mount -O datavolume,nointr -t gfs /dev/vg00/vg00 /u04
(mounted this way for the OCR and Voting Disk file directories)
Again, sorry to post this here, I am about at my wits end. Thanx in advance! Darrell J. Frazier
Unix System Administrator
US Army Combat Readiness Center
Fort Rucker, Alabama 36362
Email: darrell frazier crc army mil
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