How to List Disks(LUNs) in a System with their Sizes

[Alzhy]

Q quickie...

Is there a tool in HP-UX (similar to EMC's inquire) that lists all disks with thier capacities? I am trying to inventory the LUNs (from an EVA) allocated to an HPUX box. ioscan lists the disks but no capacities. SAM only shows the 1st LUN....

Thanks..

[Duncan Edmonstone · Accepted solution]

You need to use 'diskinfo'

The following shell code should give you what you need.

ioscan -funCdisk | awk ' /rdsk/ {print $2}' | while read disk
do
diskinfo $disk
done

It might hang for a moment or two while looking at CD-ROMS.

HTH

Duncan

[Marco Santerre]

you'll need to go through each and everyone of them separately, but the command diskinfo will give you the size of your LUN.

#diskinfo /dev/rdsk/cntndn

[Stefan Farrelly]

No, I dont believe there is a tool to do it. You need to write a script to collate this info and display it in one go.

We use EMC's inq.HP (or syminq or inq). Its a small binary and it works fine on HP servers which dont have EMC. Gives a nice single view of all luns and their sizes.

[Sundar_7]

Hi,

# cd /dev/rdsk
# for DISK in *
do
SIZE=$(diskinfo $DISK | grep size: | awk '{print $2}')
echo "$DISK Capacity: $SIZE Kbytes"
done
#

Pls note that more than one device file can be referring to the same LUN. So a literal addition of all the sizes displayed would not be accurate.

--Sundar.

[Alzhy]

Anyone knows if EMC's inquire or syminq is a free tool? Where to download if free?

[Elena Leontieva]

Also, take a look at this:

Document id: DKKBRC00006641 "Only first LUN of 3rd party disk array visible in SAM"

http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000062906734

Elena.

[Steven E. Protter]

Duncan(et al) you should probably post that script to Bill McNamara's scripts that sysadmins should not be without thread.

My version of the script showed all disks, though it did hang for a while on the cd-rom.

Another mod would be converting the diskinfo output to Megabytes or Gigabytes.

Good Show.

SEP

[John Payne_2]

If you mount luns of different sizes, they should show up in SAM. (ie, 3 luns: all 500GB, will only show one, 3 luns: 500GB, 501GB, 502GB, will all show up in SAM.)

Hope it helps.

John

[Todd McDaniel_1]

Just a thought or 2...

Since your asking Im guessing you don't have syminq/inq commands.

On my EMC frames, all my LUNS are set to a "standard" size. Do you have different sized LUNs in your Storage? It makes life alot easier with BCVs and creating new VGs/LVs.

______________________________________
Here is a script one of our great techs wrote, you can modify it... It includeds the verbose version of the display commands so you might want to remove the -v option.


_______________CUT HERE _____________________________

# cat findspace
#!/sbin/sh
# findspace... to look at ALL disks on the HP box, extract pertinent
# information so that an administator can find out what is in use.
# This program uses "ioscan" to get the disks on the box, then to
# pvdisplay to get the information.
#
#
# syntax is just "findspace [-s]"
# output is to a file /tmp/disk1
# with option -s, the size of the physical extent (normally 4 meg) is printed
# and the allocated physical extents are not printed.
#
# optional printing is: pr -2Ft -l60 -w80 /tmp/disk1
if [ $# -ne "0" ]
then
if [ $1 = "-s" ]
then
SZ=yes
else
echo "\n\n\tUsage: `basename $0` [ -s ] \n"
echo "option -s shows extent size (normally 4meg) rather than allocated
extents"
echo "\n\n" ; exit
fi
fi
hostname > /tmp/disk1
echo "" >> /tmp/disk1
# first, find all disks except "CD-ROM" using ioscan
echo "\n estimate 2 seconds per disk to run.\n\n"
ioscan -fun -C disk | awk '( $1 == "disk" ) && ( $8 !~ /ROM/ ) { print $3
getline
print $1, $2 }' | paste - - > /tmp/crs1
# use that list to get diskinfo and pvdisplay of each disk
exec < /tmp/crs1
while read HDWR DSK RDSK
do
echo $DSK "\t" $HDWR >> /tmp/disk1
diskinfo $RDSK >> /tmp/disk1
pvdisplay -v $DSK >> /tmp/disk1 2>/dev/null
echo "----------------------------------" >> /tmp/disk1
done
# get rid of all of the info that I don't want.
# depends on if I wanted size of sector or know they are all 4 meg
if [ "${SZ}" = "yes" ]
then
ed /tmp/disk1 << DONE
g/current/d
g/free/d
g/Physical volumes/d
g/PV Name/d
g/extents/d
g/Status/d
g/Distribution/d
g/Allocatable/d
g/Allocated/d
g/VGDA/d
g/PV Status/d
g/Stale PE/d
g/SCSI describe of/d
g/vendor:/d
g/product id:/d
g/bytes per sector:/d
g/Timeout/d
g/^ /s///
w
q
DONE
#
else
ed /tmp/disk1 << DONE
g/current/d
g/free/d
g/Physical volumes/d
g/PV Name/d
g/extents/d
g/Status/d
g/Distribution/d
g/Allocatable/d
g/VGDA/d
g/PE Size/d
g/PV Status/d
g/Stale PE/d
g/SCSI describe of/d
g/vendor:/d
g/product id:/d
g/bytes per sector:/d
g/Timeout/d
g/^ /s///
w
q


DONE
fi
#
echo "\n\noutput is in /tmp/disk1\n\n"
######