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1. make sure your disks are configured properly
on Solaris, partitions starting at cylinder 0 are not recognized by ASM
2. set the proper permissions for the disks
3. in the installer, change discovery path to the path of the disks
952832 wrote:separate voting disks in 11gR2 are not necessary.
I have the first time to install the RAC on Solaris 10. I have stuck on the ASM disk group step in the Grid Infrastructure.
2 Sun Server in Solaris 10 with same configure (which we are not using shared drive)
250GB Local Hard Disk
1100 GB Raw Disk (which at SAN)
3GB x 3 Raw Disk (which at SAN) for voting disk
I would break the 1100G into 11@100G devices and use EXTERNAL redundancy (RAID on the SAN side). You will get much better performance. (Configured/managed a 250TB 3node cluster on Sun 6900s however my LUNs were 1.5TB in size)
When I install Grid Infrastructure, I select first option: Install and Confgure Grid in Cluster (I can't remember the exact name) and also select the Typical Installation. The previous steps are successful before the ASM Disk Group. At ASM Disk Group, no disk are display for selection.Again using a single 1.1TB device will not get you better performance and should you need to add additional devices, they too will need to be 1.1TB. Sometimes smaller is better.
So, how to fix the missing disk in this ASM Disk Group creation?
Make sure you use a partition that starts at cylinder 1 or 2
Make sure you set the correct permissions (660) and ownership (gridowner:oinstall) on those devices and make sure the oracle user is a member of that group.
Thanks you guys.
And I have another questions,
I have 1 data RAW Disk and 3 voting Disk, how to partition each. For example, I have existing configure (shown as below) for the data RAW disk:
0 root wm 0 - 5 141.20MB (6/0/0) 289170
1 swap wu 6 - 11 141.20MB (6/0/0) 289170
2 backup wu 0 - 47872 1.07TB (47873/0/0) 2307239235
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 usr wm 12 - 47872 1.07TB (47861/0/0) 2306660895
7 unassigned wm 0 0 (0/0/0) 0
How to be confiure the partition for install the RAC?