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09-20-2012 07:58 AM
09-20-2012 07:58 AM
Used Clone LUNs. However /dev/disk/diskXXX changes all the time
Good morning,
We have clone LUNs that we use to for DR testing. We have been using legacy DSFfor some time, and this is the first time have to use the the persistent DSF. Looks like the persistent DSFs ( /dev/disk/diskXXXX) keeps changing every time we export our DF VGs and re-do our clone LUNs.
Is there a way to keep the persistent DSFs re-use the same names "/dev/disk/diskXXX"? Maybe I'm missing something.
Thanks,
f. halili
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09-20-2012 09:15 AM
09-20-2012 09:15 AM
Re: Used Clone LUNs. However /dev/disk/diskXXX changes all the time
Hope this helps!
Regards
Torsten.
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09-20-2012 10:56 AM
09-20-2012 10:56 AM
Re: Used Clone LUNs. However /dev/disk/diskXXX changes all the time
The clone was un-presented, and the host was rebooted. We did not do an rmsf
Thanks,
f. halili
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09-20-2012 11:11 PM
09-20-2012 11:11 PM
Re: Used Clone LUNs. However /dev/disk/diskXXX changes all the time
What sort of disk array are you using? Is it an EVA by any chance? Sounds like you disk array is creating each cloned LUN with a new WWID, which will of course look like an entirely new LUN to HP-UX11iv3. There are ways around this if this is an EVA...
I am an HPE Employee
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09-21-2012 04:40 AM
09-21-2012 04:40 AM
Re: Used Clone LUNs. However /dev/disk/diskXXX changes all the time
Yes we are using an EVA ( 4100 ). As we create a snapshot disk we use the same LUN ID number and present it to the host to be consistent.
So what suppose to happen is make a snap, present, import the disks to the vg and mount. But now everytime we snap, and present, the /dev/disk/diskXXXX changes.