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Home -> Community -> Usenet -> c.d.o.server -> Re: segmentation fault when running /home/oracle/product/CRS/root.sh for CRS on Linux (RAC install with iSCSI and raw devices)
hpuxrac wrote:
>
> Did you follow the oracle installation and configuration guide?
>
> Have you configured the linux kernel? ( Set various parameters to
> support shared memory, etc ).
I just figured it out! (To answer your questions, yes, I followed the guide and did not short-cut anything, including the linux kernel params).
The problem was this -- when I created the raw devices for OCR and Voting Disk over iscsi I did not "zero out" the raw devices. All the docs I ever find mentioning iscsi with RAC are using NetApp or similar filer solutions so this step wasn't mentioned anywhere. A collegue of mine mentioned zeroing out before using raw devices for another unrelated project.
After mounting the iscsi LUNs and creating the rawdevices (/etc/sysconfig/rawdevices) it was necessary in this application of iscsi/raw devices to zero them out by running this command:
[root_at_racsrv1-sc ~]# for i in /dev/raw/*; do dd if=/dev/zero of=$i
bs=1M; done
dd: writing `/dev/raw/raw1': No space left on device
150+0 records in
149+0 records out
dd: writing `/dev/raw/raw2': No space left on device
22+0 records in
21+0 records out
The cluster is up!
Thanks to those who took a look and responded.
Regards,
Erik Johnson Received on Tue Jun 13 2006 - 17:21:18 CDT