topic Re: finding a device name in Operating System - HP-UX

finding a device name

susee_sundar — Fri, 09 Jun 2006 06:59:13 GMT

Hi,

With this Details how can i find
the Hardware device path

ext-bus 4 8/16/5
disk 9 8/16/5.6.0

How can i found the device in /dev directory ?

Re: finding a device name

Pete Randall — Fri, 09 Jun 2006 07:00:11 GMT

ioscan -kfnCdisk |grep 8/16/5.6.0

Pete

Re: finding a device name

Torsten. — Fri, 09 Jun 2006 07:01:27 GMT

Why not run "ioscan -fn" or
"ioscan -fnH8/16/5.6.0", this will give you the device file of the disk.

Re: finding a device name

Delrish — Fri, 09 Jun 2006 07:04:25 GMT

ioscan -fn
insf -e
ioscan -fun

Re: finding a device name

Darrel Louis — Fri, 09 Jun 2006 07:04:50 GMT

Susee,

Apart from the other suggestions you can do the following:

# cd /dev/dsk
# lssf c*

GoodLuck

Darrel

Re: finding a device name

Matthew Ghofrani — Sun, 11 Jun 2006 08:19:46 GMT

Hi;

All the above will help. Do you have disk failure?

Matthew from Boston

Re: finding a device name

inventsekar_1 — Sun, 11 Jun 2006 13:34:38 GMT

just to refresh:

1.)in pete's line
ioscan -kfnCdisk |grep 8/16/5.6.0
you should remember a "space" between -KfnC and disk
ioscan -kfnC disk |grep 8/16/5.6.0
(in torsten's line also)
2.) Generally, ioscan requires superuser privileges. A non root user may use the -k option, only to display the kernel hardware tree. Driver binding and actual hardware scanning is restricted to root.
3.)and its good to know (or remember) the meaning of the options:

-K (upper case) Scan kernel I/O system data structures instead of the actual hardware and list the results.Cannot be used with -u. This option does not require superuser privileges.
-f Generate a full listing
-n List device file names in the output.
-C class Restrict the output listing to those devices belonging to the specified class. Cannot be used with -d.
-d driver Restrict the output listing to those devices controlled by the specified driver. Cannot be used with -C.
-H hw_path Restrict the scan and output listing to those devices connected at the specified hardware path.

4.) insf - install special (device) files
lssf - list a special file
insf -e Reinstall the special files for pseudo-drivers and existing devices. This is useful for restoring special files if one or more have been removed.

Re: finding a device name

Sandman! — Sun, 11 Jun 2006 20:10:20 GMT

Hi Sundar,

From the information provided the device files, for raw and block, should be /dev/[r]dsk/c4t6d0. Verify this with a device tree output of ioscan as follows...

# ioscan -fn -H 8/16/5

...since the cXtYdZ notation evaluates to the following:

X == Bus
Y == Target
Z == LUN

~hope it helps

Re: finding a device name

Nguyen Anh Tien — Sun, 11 Jun 2006 21:21:13 GMT

This is a simple way
#ioscan -fnuC disk |grep 8/16/5.6.0

Re: finding a device name

susee_sundar — Mon, 12 Jun 2006 00:06:52 GMT

Thanks to Sandman,

My query is cleared.