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тАО06-17-2010 01:28 AM
тАО06-17-2010 01:28 AM
cXtXdX ?????????????
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тАО06-17-2010 01:37 AM
тАО06-17-2010 01:37 AM
Re: cXtXdX ?????????????
# lssf /dev/dsk/cXtXdX
rgs,
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тАО06-17-2010 02:17 AM
тАО06-17-2010 02:17 AM
Re: cXtXdX ?????????????
if it is from storage u will find the lun number from #ioscan -m lun command
storage admin will give u new lun number
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тАО06-17-2010 02:37 AM
тАО06-17-2010 02:37 AM
Re: cXtXdX ?????????????
I did this lssf on one of my SAN disks,
I did "lssf /dev/dsk/c6t15d0"
The output was something like:
sdisk card instance 6 SCSI target 15 LUN 0 section 0 at address 1/0/2/0.1.0.0.0.15.0 /dev/dsk/c6t15d0
What do I assume of this???
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тАО06-17-2010 03:12 AM
тАО06-17-2010 03:12 AM
Re: cXtXdX ?????????????
if yes how can we trace our cX and tX
and that ioscan -m lun command is not working illegal operation is the out put which says cant use the -m bcoz its not listed in the manual,i am using an HP-UX B.11.11
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тАО06-17-2010 03:12 AM
тАО06-17-2010 03:12 AM
Re: cXtXdX ?????????????
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО06-17-2010 03:19 AM
тАО06-17-2010 03:19 AM
Re: cXtXdX ?????????????
0/20/0/0.1.1.0.2.4 is:
0/2/0/0 = HBA/Interface Card
1 = Domain (=switch no)
1= Area (=physical port no)
0= Port (always 0 in a switched fabric)
0 = Virtual SCSI Bus
2 = SCSI target
4 = SCSI LUN
http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1273675694670+28353475&threadId=1067960
rgs,
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тАО06-17-2010 03:26 AM
тАО06-17-2010 03:26 AM
Re: cXtXdX ?????????????
A little bit correct, for LUN 0 to LUN 7. ...
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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No support by private messages. Please ask the forum!
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тАО06-18-2010 03:36 AM
тАО06-18-2010 03:36 AM
Re: cXtXdX ?????????????
So if we have cXtYdZ, your lun number = (Y*8)+Z.
To make sure you're not overwriting a disk you already had in use, you can run a pvdisplay on the device. Or do a strings on /etc/lvmtab.
But that only works if your system is the only one seeing/using the disks. Even in a cluster you might run into problems with lvmtab and pvdisplay when a volumegroup has not been made known on all nodes.
To make sure which lun you are using, there are tools which might help you. For instance, when the LUN is created on a XP you can use the xpinfo command to see the LDEV information. And when using NetApp filers, sanlun is a good command to make sure the device is for the LUN you wanted.
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тАО06-18-2010 04:26 AM
тАО06-18-2010 04:26 AM
Re: cXtXdX ?????????????
You need to look at the storage vendor for what utilities they have so you can determine which SAN disk goes to which c-t-d-.
For example I run EMC storage. So I can list out all the EMC disk # with a simple command. The EMC disk # is going to be different than the servers disk number. But, once this disk is presented (mapped & masked to server) and the special device files (/dev/dsk/c-t-d-) are created, I have another command that I can run that will show be the EMC number & the associated c-t-d for it.
Since your example just shows..."OpenStorage", I'm not sure what that might be.
Check what manuals came with your new array; call the vendor...and start reading.
Regards,
Rita