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тАО06-20-2008 07:25 PM
тАО06-20-2008 07:25 PM
oracle 10g R2 ASM with mutipathing 11.31
I am moving my RAC 10gR2 from PA-Risc 11.11 to Itanium 11.31 with native multi-pathing.
created 6 disks 30Gb each from EVA4400 for this server
in 11.31 the devices
itauxdev:[root]:[TWO_TASK=OCP]:/dev/rdisk
#ll
total 0
crw-r----- 1 bin sys 23 0x00000a Jun 18 10:27 disk11
crw-r----- 1 bin sys 23 0x00000b Jun 19 11:26 disk16
crw-r----- 1 bin sys 23 0x000000 May 6 12:37 disk4
crw-rw-r-- 1 oracle dba 23 0x00000c Jun 19 15:26 disk41
crw-rw-r-- 1 oracle dba 23 0x00000d Jun 19 15:26 disk42
crw-rw-r-- 1 oracle dba 23 0x00000e Jun 19 15:26 disk43
crw-rw-r-- 1 oracle dba 23 0x00000f Jun 19 15:26 disk44
crw-rw-r-- 1 oracle dba 23 0x000010 Jun 19 15:26 disk45
crw-rw-r-- 1 oracle dba 23 0x000011 Jun 19 15:26 disk46
chmod and chown 664 and oracle:dba
but on my ASM installation, Oracle could not detect the disks. However, if i went back to the old way using
itauxdev:[root]:[TWO_TASK=OCP]:/dev/rdsk
crw-rw-r-- 1 oracle dba 188 0x060300 Jun 20 20:22 c6t0d3
crw-rw-r-- 1 oracle dba 188 0x060400 Jun 20 20:22 c6t0d4
crw-rw-r-- 1 oracle dba 188 0x060500 Jun 20 20:22 c6t0d5
crw-rw-r-- 1 oracle dba 188 0x060600 Jun 20 20:22 c6t0d6
crw-rw-r-- 1 oracle dba 188 0x060700 Jun 20 20:22 c6t0d7
crw-rw-r-- 1 oracle dba 188 0x061000 Jun 20 20:22 c6t1d0
chmod and chown 664 and oracle:dba
and ASM installation would detect those disks just fine.
Would someone please correct me if i did someting wrong here or it was not the correct way to use the new disks /dev/rdisk/disk41 to 46
Thanks for your helps!
Tom
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тАО06-20-2008 11:30 PM
тАО06-20-2008 11:30 PM
Re: oracle 10g R2 ASM with mutipathing 11.31
Did you change the ASM parameter ASM_DISKSTRING to point at the new disks. I'm guessing it defaults to /dev/rdsk.
Have you reviewed the whitepapers on best practices for the EVA with ASM available here:
http://h71028.www7.hp.com/enterprise/cache/324315-0-0-0-121.html#oracle
HTH
Duncan
I am an HPE Employee
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тАО06-25-2008 09:44 AM
тАО06-25-2008 09:44 AM
Re: oracle 10g R2 ASM with mutipathing 11.31
Kevin
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тАО06-25-2008 02:00 PM
тАО06-25-2008 02:00 PM
Re: oracle 10g R2 ASM with mutipathing 11.31
Duncan, i did change the location to /dev/rdisk
and chown to oracle:dba but it could not detected the disks.
Kevin, on linux, yes it would change permission
if i did not follow your instruction but it is fine on Unix. I've used it for the last 3 yrs.
i just wonder if anyone uses /dev/rdisk for ASM in Oracle 10g.
regards,
Tom
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тАО06-26-2008 04:55 AM
тАО06-26-2008 04:55 AM
Re: oracle 10g R2 ASM with mutipathing 11.31
Kevin
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тАО06-26-2008 06:05 AM
тАО06-26-2008 06:05 AM
Re: oracle 10g R2 ASM with mutipathing 11.31
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тАО06-30-2008 04:09 PM
тАО06-30-2008 04:09 PM
Re: oracle 10g R2 ASM with mutipathing 11.31
the Linux and HPUX 11.31 are quite different.
I would hope if anyone is using mutipathing with oracle ASM. Please give me a hint.
Regards,
Tom
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тАО08-10-2008 04:36 AM
тАО08-10-2008 04:36 AM
Re: oracle 10g R2 ASM with mutipathing 11.31
eg:
db1:
disk 139 64000/0xfa00/0x8 esdisk CLAIMED DEVICE online HP HSV210
0/0/4/1/0.0x50001fe1500f3ebd.0x4004000000000000
0/0/4/1/0.0x50001fe1500f3ebe.0x4004000000000000
0/0/4/1/0.0x50001fe1500f3eb8.0x4004000000000000
0/0/4/1/0.0x50001fe1500f3ebb.0x4004000000000000
0/0/6/1/0.0x50001fe1500f3ebc.0x4004000000000000
0/0/6/1/0.0x50001fe1500f3ebf.0x4004000000000000
0/0/6/1/0.0x50001fe1500f3eba.0x4004000000000000
0/0/6/1/0.0x50001fe1500f3eb9.0x4004000000000000
1/0/4/1/0.0x50001fe1500f3ebc.0x4004000000000000
1/0/4/1/0.0x50001fe1500f3ebf.0x4004000000000000
1/0/4/1/0.0x50001fe1500f3eba.0x4004000000000000
1/0/4/1/0.0x50001fe1500f3eb9.0x4004000000000000
db2:
disk 139 64000/0xfa00/0x8 esdisk CLAIMED DEVICE online HP HSV210
0/0/4/1/0.0x50001fe1500f3eb8.0x4001000000000000
0/0/4/1/0.0x50001fe1500f3ebb.0x4001000000000000
0/0/4/1/0.0x50001fe1500f3ebd.0x4001000000000000
0/0/4/1/0.0x50001fe1500f3ebe.0x4001000000000000
0/0/6/1/0.0x50001fe1500f3eba.0x4001000000000000
0/0/6/1/0.0x50001fe1500f3ebc.0x4001000000000000
0/0/6/1/0.0x50001fe1500f3eb9.0x4001000000000000
0/0/6/1/0.0x50001fe1500f3ebf.0x4001000000000000
1/0/4/1/0.0x50001fe1500f3eb8.0x4001000000000000
1/0/4/1/0.0x50001fe1500f3ebb.0x4001000000000000
1/0/4/1/0.0x50001fe1500f3ebd.0x4001000000000000
1/0/4/1/0.0x50001fe1500f3ebe.0x4001000000000000
I think I should use mksf to build the new device file...
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тАО08-11-2008 07:48 AM
тАО08-11-2008 07:48 AM
Re: oracle 10g R2 ASM with mutipathing 11.31
it should point to the same LUN but the device file may be different. in this case use mknod to create a new device file for both nodes.
Hope this help!
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тАО08-11-2008 08:57 AM
тАО08-11-2008 08:57 AM
Re: oracle 10g R2 ASM with mutipathing 11.31
does it work now?
if you have upgraded to 10.2.0.3 check this bug on metalink: 433770.1
and also check this thread:
http://forums.oracle.com/forums/thread.jspa?threadID=681657&tstart=0
Regards