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тАО10-16-2009 06:44 AM
тАО10-16-2009 06:44 AM
In order to reduce the migration process time, instead of a NFS solution, we have considered the possibility of using an external SAN disk, create a new VG in the HP-UX 11.11 server, dump the Oracle DB, export and deactivate the VG, and finally import and activate the new VG in the HP-UX 11.23 to migrate the database.
Do you think that solution can work, despite of the different HP-UX versions?
Thanks
Solved! Go to Solution.
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тАО10-16-2009 07:57 AM
тАО10-16-2009 07:57 AM
Re: Sharing disk between servers with diffrent HP-UX version
I doubt this question is posted in the wrong forum. This should be answered by the HP-UX experts.
However, I am sorry to say that the planned activity cannot help you to migrate the Database. There will be a number of patches and bundles to be installed in HP-UX and a procedure should be followed as per my knowledge. Please contact your Oracle Support team and they are the best to answer this query
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тАО10-16-2009 08:56 AM
тАО10-16-2009 08:56 AM
Re: Sharing disk between servers with diffrent HP-UX version
Sounds good. I'd do it.
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тАО10-16-2009 01:45 PM
тАО10-16-2009 01:45 PM
SolutionIf you were doing the operation in reverse (creating the filesystem on 11.23 and moving it to 11.11), it would still be do-able, but it would be necessary to explicitly specify VxFS layout version 4 in newfs/mkfs command.
This is because the default layout for 11.23 is version 5, and 11.11 understands only versions 2, 3 and 4.
11.23 understands all the old layouts of 11.11 and adds a new layout version 5, which is not supported by 11.11.
For a list of supported VxFS layout versions in different versions of HP-UX and respective maximum filesystem sizes, see this document:
http://docs.hp.com/en/5992-4023/5992-4023.pdf
LVM has no major changes between 11.11 and 11.23, although a properly patched 11.23 can create larger LVs than 11.11 can handle.
Please see this document for more information about limits of LVM:
http://docs.hp.com/en/6054/LVM_Limits_White_Paper_V4.pdf
(Only the part about LVM 1.0 is relevant for 11.23 and older. LVM 2.x versions are new features of 11.31.)
As Viveki noted, there may be some things that must be taken into account at the Oracle level.
MK
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тАО10-17-2009 04:50 PM
тАО10-17-2009 04:50 PM
Re: Sharing disk between servers with diffrent HP-UX version
Make sure to check the vxfs compatibilty in both the places, Often it is found to be a barrier while activating and mounting the FS from the source server if vxfs are not same version. (should be same or higher ver.)
on 11.11 check:
# swlist -l product | grep -i vxfs
# fstyp -v /dev/vg_name/oravl01 #[ run fsyp on the oracle filesystem to see te vxfs filesystem layout.]
on 11.23 check:
# swlist -l product | grep -i vxfs
- Also verify the kernel parameters are same r higher on the system the database is going to be migrated or you might see performance prblem.
-Also verify that OS patch bundles and Oracle required patches are instlled on target.
Check this out for os patch details with the oracle version :
http://www.oracle.com/technology/support/metalink/index.html
- Also make sure all the oracle & app. users are created on the target with same uid/gid as source,
Cheers,
Raj.
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тАО10-17-2009 06:49 PM
тАО10-17-2009 06:49 PM
Re: Sharing disk between servers with diffrent HP-UX version
2.Requered OS Patchs are installed in hpux v2.
3.oracle installed and checked.
4.take the backup of
#ioscan -funC disk
if emc storage
#syminq
or hp
#xpinfo -i
and
#strings /etc/lvmtab
#vgdisplay -v
#bdf
#vgexport -v -p -s -m /tmp/vgxx.map vgxx
then
scp the map file to hpv2 to hpv3 servers
#vgchange -a n vgxx
#vgexport vgxx
De-allocate the lun with help of storage team.
Then allocate the lun to hpux v2 server
#ioscan -fnC disk
#infs -e
#mkdir /dev/vgxx
#mknod /dev/vgxx/group c 64 0xxx00000
#vgimport -v -s -m vgxx.map
#vgchange -a y vgxx
Then mount and try to start the database.
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тАО10-18-2009 11:47 PM
тАО10-18-2009 11:47 PM