Sanjay, I have configured 10gR2 RAC on AIX and our SA was able to provide us 1 GB volumes for OCR and Voting disk. Oracle Clusterware installation docs for AIX lists down steps to create a volume group and the raw volumes inside it. Refer to following http://download.oracle.com/docs/cd/B19306_01/install.102/b14201/storage.htm#sthref539 Regards Amit http://askdba.org/weblog/ On Sat, Jan 23, 2010 at 6:01 AM, Sanjay Mishra <smishra_97@xxxxxxxxx> wrote: > Does anybody experience that if I need to create the Partition for > OCR/Voting on AIX, it has to be part of Volume group and if the disk is part > of Volume group which can be one disk in Volume Group then its PVID can;t be > none and thus violates the RAC requirement to have PVID to be none. I know > Solaris is not an issue where we have to do a partition so as leave the > block 0 to avoid loss of the device at reboot and used the new partitioned > slice but Never check it in AIX. > > SA menitoned that it is not possible and so we need to go with all 50G Luns > each for OCR/Voting which will be not wastage of 250G space but also can > impact IO/backup. > > Any AIX environment which has experience the same. > Sanjay > > ------------------------------ > *From:* Sanjay Mishra <smishra_97@xxxxxxxxx> > *To:* LS Cheng <exriscer@xxxxxxxxx> > > *Cc:* oracle-l@xxxxxxxxxxxxx > *Sent:* Thu, January 21, 2010 5:50:44 PM > > *Subject:* Re: Raw Logical Partition on AIX for OCR > > Cheng > > So can it be used for OCR/Voting. > Can I have multiple Partition like if I have 3 Physical Luns, then I can > have 1OCR and 1Voting from one LUN and same from second and 1 voting from > Third. > or > I need to have 5 Physical Lun and create one partition from each and leave > rest of the space intact > > TIA > Sanjay > > ------------------------------ > *From:* LS Cheng <exriscer@xxxxxxxxx> > *To:* smishra_97@xxxxxxxxx > *Cc:* oracle-l@xxxxxxxxxxxxx > *Sent:* Thu, January 21, 2010 5:45:53 PM > *Subject:* Re: Raw Logical Partition on AIX for OCR > > You can use AIX's LVM to create smaller partitions > > > Thanks > > -- > LSC > > > On Thu, Jan 21, 2010 at 10:38 PM, Sanjay Mishra <smishra_97@xxxxxxxxx>wrote: > >> I had to build a 10g RAC where I got 50G OCR/Voting Disk Physical Luns >> from SAN team with the note that they cannot carved anything less than that >> in SAN. Is it possible that I can create 1G Partition from each of them and >> use them so that I can back them easily especially Voting Disk or so. >> Environment is AIX. If anybody can share the experience. Using Physical LUN >> as it is not an issue. It is EMC storage. >> >> TIA >> Sanjay >> >> > > >