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тАО04-27-2011 10:16 PM
тАО04-27-2011 10:16 PM
identify new luns @ server side
and there are many luns already added and no secure path and mutipath is there...
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тАО04-27-2011 10:25 PM
тАО04-27-2011 10:25 PM
Re: identify new luns @ server side
basically, running 'ioscan -fn' should be enough to see new luns presented from the disk array on the server.
What hp-ux version are you running? If 11.23 and lower, you also need to create DSFs by 'insf -C disk'
what disk array are you using?
If using HP's XP disk arrays, there's a utility called 'xpinfo' , to map disk's DSF to certain 'CU:LDEV' on the diskarray. This command works also for SUN(now Oracle) disk arrays.
For HP's EVA, there's similar 'evainfo' command.
I don't know about other disk array vendors, they probably have similar tools.
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тАО04-27-2011 10:46 PM
тАО04-27-2011 10:46 PM
Re: identify new luns @ server side
storage is EVA and XP24k...
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тАО04-27-2011 10:50 PM
тАО04-27-2011 10:50 PM
Re: identify new luns @ server side
As said before, xpinfo and evainfo will help you to identify the disks also.
Hope this helps!
Regards
Torsten.
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тАО04-27-2011 10:52 PM
тАО04-27-2011 10:52 PM
Re: identify new luns @ server side
#which xpinfo
#which evainfo
If you don't have them, then since you are an owner of those disk arrays, you should have no problem to get them from HP support. As I know, they are not available to download from internet.
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тАО04-27-2011 11:59 PM
тАО04-27-2011 11:59 PM
Re: identify new luns @ server side
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=12169&prodSeriesId=471497&swItem=co-56391-1&mode=4&idx=0
XPINFO:
is only available from support or on the XP management PC, there is no download for it.
hth
Stephan
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тАО04-28-2011 01:44 AM
тАО04-28-2011 01:44 AM
Re: identify new luns @ server side
Cheers
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тАО04-29-2011 10:07 AM - last edited on тАО07-11-2011 10:49 AM by Kevin_Paul
тАО04-29-2011 10:07 AM - last edited on тАО07-11-2011 10:49 AM by Kevin_Paul
Re: identify new luns @ server side
Before you do the insf, do
# ioscan -fnCdisk > /tmp/ios1
then do insf
# insf -Cdisk
then another ioscan
# ioscan -fnCdisk > /tmp/ios2
Now, you can diff the listings.
# diff /tmp/ios1 /tmp/ios2
That should show you the added disks.
for converting HW address to LUN number,
see the thread
http://h30499.www3.hp.com/t5/System-Administration/LUN-details-with-mount-point/m-p/4780405#M390941
Basically:
To verify the devices to LUN numbers the storage admin presented @ server, use formula:
Taking the last 3 octets of the disk HW address,
...m.n.p
you can calculate the LUN from the array by:
LUN= $(( 128*m + 8*n + p ))
For example,
if the LUN presented is LUN 110,
then 110 = $(( 128*0 + 8*13 + 6 ))
then the HW path FOR EACH san path to the disk will be like :
disk ... 0//....0.13.6
I.e., all the paths' HW addresses will end in 0.13.6
So you could search the listing for
^disk.*0\.13\.6
and find each associated /dev/dsk/cNtTdL .
bv