OCR Disk - change from external to normal redundancy

Hey, I am using grid 11.2.0.3
I have one +OCR Disk in ASM configured. unfortunately with external redundancy.
I have two storages - each storage is representing 2 disks á 500 MB
But I think that my cluster will break down, in a case of a storage failure. Is that right ?
Can I switch to normal redundancy ? If not, how to modify the configuration.
I could create two new disks, and could create a new diskgroup for OCR. But how to switch ?
Is it the ocrconfig replace command ? Or with a backup ?
ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3032
Available space (kbytes) : 259088
ID : 419542868
Device/File Name : +OCR
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
ocrconfig -showbackup
2011/11/04 05:48:57 /crs/cdata/bfkoe/backup00.ocr
2011/11/04 01:48:57 /crs/cdata/bfkoe/backup01.ocr
2011/11/03 21:48:57 /crs/cdata/bfkoe/backup02.ocr
2011/11/03 17:48:56 /crs/cdata/bfkoe/day.ocr
2011/11/03 17:48:56 /crs/cdata/bfkoe/week.ocr
PROT-25: Manual backups for the Oracle Cluster Registry are not available

Christian wrote:
Hi, would this the way to replace my diskgroup
srvctl stop database -d <database>
ocrconfig -manualbackup
ocrconfig -showbackup manual
crsctl stop crs [-f] on all nodes
ocrconfig -delete +OCR
#Remove ASM Diskgroup
oracleasm deletedisk OCR1
oracleasm deletedisk OCR2
oracleasm deletedisk OCR3
oracleasm deletedisk OCR4
#Remove ASM Header
dd if=/dev/zero of=/dev/mapper/vot1_agg01_part1 bs=1024k count=200
dd if=/dev/zero of=/dev/mapper/vot3_agg01_part1 bs=1024k count=200
dd if=/dev/zero of=/dev/mapper/vot2_agg02_part1 bs=1024k count=200
dd if=/dev/zero of=/dev/mapper/vot4_agg02_part1 bs=1024k count=200
#Re-Create ASM Diskgroup
oracleasm createdisk OCR1 /dev/mapper/vot1_agg01_part1
oracleasm createdisk OCR2 /dev/mapper/vot3_agg01_part1
oracleasm createdisk OCR3 /dev/mapper/vot2_agg02_part1
oracleasm createdisk OCR4 /dev/mapper/vot4_agg02_part1
Recreate +OCR Diskgroup via asmca with normal redundancy and mount diskgroup on all nodes
ON node 1:
crsctl start crs -excl -nocrs
ocrconfig -add +OCR
ocrconfig -restore <file_name>
ocrcheck
On node1:
crsctl stop crs -f
On node2:
ocrconfig -repair -replace
On node1+node2
crsctl start crs
cluvfy comp ocr -n all -verbose
Does this look right ?
Christian
Looks complicated, I would suggest have a read http://download.oracle.com/docs/cd/E11882_01/rac.112/e16794/votocr.htm#CWADD91099
Cheers

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Christian wrote:
Hey, I am running GI 11.2.0.3 on SLES11.
Currently my votingfiles are on one asm diskgroup called +OCR configured with external redundancy;
While doing some failure tests it showed up, that the shared storage is not available for more than 40 seconds.
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