topic Re: Show disk ioscan in one line in Operating System - Linux

Show disk ioscan in one line

nz_1 — Thu, 26 Oct 2006 06:53:43 GMT

I am trying to get ioscan output for disk to be shown in one line.

So far I managed to do as below and include it in my script.

/usr/sbin/ioscan -fnCdisk |grep -v "Class" |/usr/bin/awk '{print $1" "$5" "$6" "$7" "$8" "$2" "$3" "$4"="}'|/usr/bin/sed -e :a -e '/sdisk=/N; s/sdisk=\n//; ta' |/usr/bin/awk '{print $1":"$2":"$3":"$4":"$5":"$6":"$7":"$8":"$9}' |grep -v "="

However, this wont work if there is no device file for the hardware.

Anyone has a better solution?
Thanks.
Nash

Re: Show disk ioscan in one line

Pete Randall — Thu, 26 Oct 2006 06:59:35 GMT

I use the attached.

Pete

Re: Show disk ioscan in one line

James R. Ferguson — Thu, 26 Oct 2006 06:59:41 GMT

Hi Nash:

When parsing the output of 'ioscan', using its '-F' option to produce colon-delimited fields eases the burden, particularly since missing fields are bounded by consecutive colons.

Regards!

...JRF...

Re: Show disk ioscan in one line

nz_1 — Thu, 26 Oct 2006 07:05:40 GMT

Hi James

Yes, -F option eases the burden but the the device files are still shown in a separate line.

Thanks.

Re: Show disk ioscan in one line

nz_1 — Thu, 26 Oct 2006 07:08:46 GMT

Hi Pete

I will find myself an awk book.

Thanks.

p.s. Next task - combine vgdisplay, diskinfo and ioscan

Re: Show disk ioscan in one line

Ralph Grothe — Thu, 26 Oct 2006 07:59:06 GMT

I'm not sure what sort of output you desire.
But extracting the disks' paths is quite simple (piped to head for brevity)

$ /usr/sbin/ioscan -kFdsdisk|awk -F: '/CLAIMED/&&!/DVD|CD|SUBDISK/{print$11}'|head
0/0/1/1.2.0
0/0/2/0.0.0
0/0/2/0.2.0
0/10/0/0.107.21.19.0.0.0
0/10/0/0.107.21.19.0.0.1
0/10/0/0.107.21.19.0.0.2
0/10/0/0.107.21.19.0.0.3
0/10/0/0.107.21.19.0.0.4
0/10/0/0.107.21.19.0.0.5
0/10/0/0.107.21.19.0.0.6

Re: Show disk ioscan in one line

James R. Ferguson — Thu, 26 Oct 2006 08:07:36 GMT

Hi (again) Nash:

Output using awk uses a space as the default field separator. Hence:

# echo "1 2 3"|awk '{print $1" "$2" "$3}'

...is better written as:

# echo "1 2 3"|awk '{print $1,$2,$3}'

The comma indictes the interposition of the output separator.

You can change the default space separtor to any character you need by setting the OFS value like this:

# echo "1 2 3"|awk 'BEGIN{OFS="."};{print $1,$2,$3}'

...which produces the output:

1.2.3

A free, very nice tutorial to 'awk' can be found here:

http://www.gnu.org/software/gawk/manual/gawk.html

Regards!

...JRF...

Re: Show disk ioscan in one line

Ralph Grothe — Thu, 26 Oct 2006 08:15:52 GMT

If you need to convert the HW paths of the disks which are easily retreivable through ioscan's -F switch, as shown above, I am afraid you need to do a little scripting.
The controller or card No. (well the digits after the c in /dev/dsk/c?t?d?) can be taken from the instance Nos. that ext_bus class like

$ /usr/sbin/ioscan -kFCext_bus|awk -F: '$10~/fcparray|c720/{printf"%2d %s\n",$13,$11}'
0 0/0/1/0
1 0/0/1/1
2 0/0/2/0
3 0/0/2/1
11 0/10/0/0.107.21.19.0
4 0/12/0/0.117.6.19.0

The target and device or lun part is simply the last to period delimited digits of the disk paths' from my first posting.

But don't despair, the Solaris device tree even sucks more ;-)

HTH

Re: Show disk ioscan in one line

nz_1 — Mon, 27 Nov 2006 20:03:01 GMT

Thank you all for the feedback. Here is my primitive script.
Nash