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тАО06-18-2010 03:17 AM
тАО06-18-2010 03:17 AM
Connecting HP-UX System to SAN Disk
I made a volume at the SAN end
then added it on my server through "insf тАУe тАУC disk" command
then I did a "ioscan -funC disk" and saw two new device file entries,suppose
disk 12 0/1/2/0.124.15.19.0.0.0 sdisk CLAIMED DEVICE STK OPENstorage D280 /dev/dsk/c28t0d0 /dev/rdsk/c28t0d0
and
disk 13 0/1/2/0.124.15.19.0.1.2 sdisk CLAIMED DEVICE STK OPENstorage D280 /dev/dsk/c28t1d2 /dev/rdsk/c28t1d2
Now I want to create a Physical Volume at the server end for which path to pv is required
i.e /usr/sbin/pvcreate pv_path
which device file should I use from the above two either /dev/rdsk/c28t0d0 or /dev/rdsk/c28t1d2 or both
thanks in advance
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тАО06-18-2010 03:47 AM
тАО06-18-2010 03:47 AM
Re: Connecting HP-UX System to SAN Disk
Hope this helps!
Regards
Torsten.
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тАО06-18-2010 03:53 AM
тАО06-18-2010 03:53 AM
Re: Connecting HP-UX System to SAN Disk
its very simple is you are not sure, use diskinfo on the /dev/rdsk/c28t1d2.
mikap
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тАО06-18-2010 04:18 AM
тАО06-18-2010 04:18 AM
Re: Connecting HP-UX System to SAN Disk
ioscan -m dsf
You'll see smth like that:
/dev/rdisk/disk25 /dev/rdsk/c5t0d2
/dev/rdsk/c3t0d2
Use pvcreate with /dev/rdisk/disk25 disk.
In case of HP-UX version < 11.31 you should add both disks to VG
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тАО06-18-2010 04:27 AM
тАО06-18-2010 04:27 AM
Re: Connecting HP-UX System to SAN Disk
it depends on storage if it is multipathing
u will create PV with any one name only /dev/rdsk/c28t0d0 or /dev/rdsk/c28t1d2
if it 2 Luns means u will have two different disks so u will create PV on both disks
/dev/rdsk/c28t0d0 and /dev/rdsk/c28t1d2
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тАО06-21-2010 09:43 PM
тАО06-21-2010 09:43 PM
Re: Connecting HP-UX System to SAN Disk
Looking at these two posts:
Yarema A. Mikhajliv
"In case of HP-UX version < 11.31 you should add both disks to VG"
I have HP-UX B.11.11
and
sudheerch
" if it 2 Luns means u will have two different disks so u will create PV on both disks"
in my case only 1 LUN was created at the SAN end
What should I be doing???
Also can any body tell me why it created two device files?
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тАО06-21-2010 09:47 PM
тАО06-21-2010 09:47 PM
Re: Connecting HP-UX System to SAN Disk
In this case LUN10 is for your data (/dev/dsk/c28t1d2).
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО06-21-2010 11:43 PM
тАО06-21-2010 11:43 PM
Re: Connecting HP-UX System to SAN Disk
If one of them is a 'command device', it should report a small size.
Also look at the SAN drviec. At what LUN number did you create your LUN ?