topic Re: How to find SCSI hard disk in the system in Operating System - Linux

How to find SCSI hard disk in the system

ashanabey — Tue, 29 Jun 2004 02:56:24 GMT

Hi,

how do i find SCSI hard disk installed in the system and scan all devices.

Thx!

Ashan

Re: How to find SCSI hard disk in the system

Alexander Chuzhoy — Tue, 29 Jun 2004 03:18:04 GMT

cat /proc/scsi/scsi
will tell you what scsi devices you have
try also
cdrecord -scanbus

Re: How to find SCSI hard disk in the system

Roberto Polli — Tue, 29 Jun 2004 03:50:41 GMT

search in this forum. This question has been fully ansered.
Peace, R.

Re: How to find SCSI hard disk in the system

Hoefnix — Tue, 29 Jun 2004 04:04:36 GMT

Hi,

lsscsi - list all SCSI devices (or hosts) currently on system (from man lsscsi)

HTH,
Peter

Re: How to find SCSI hard disk in the system

Mobeen_1 — Tue, 29 Jun 2004 05:52:32 GMT

Ashan,
List all the devices on your system and then grep for SCSI and then disk

rgds
Mobeen

Re: How to find SCSI hard disk in the system

Vitaly Karasik_1 — Tue, 29 Jun 2004 06:45:08 GMT

unfortunately, there is no simple answer as in HPUX world.

For example, many Proliant servers use Smart Array RAID adapter and cciss driver uses not-so-standart names: /dev/cciss/cXdY

Re: How to find SCSI hard disk in the system

Steven E. Protter — Tue, 29 Jun 2004 07:41:30 GMT

Almost every controller of every make will display a scsi utility at boot time. This will allow you to seek out and find drives by scsi id.

As noted there is no ioscan for Linux. Too bad.

SEP

Re: How to find SCSI hard disk in the system

Colin Topliss — Wed, 30 Jun 2004 19:28:46 GMT

Hmm.

Although there isn't an ioscan per-se, SuSE Linux has a really neat tool called hwinfo. It will give you a complete breakdown of your system (including SCSI devices). For example, I have a SCSI tape drive on this system:

36: SCSI 103.0: 10601 Tape
[Created at scsi.237]
Unique ID: m9fb.3rUV42LTd0F
Parent ID: bSAa.urRinWvBqX1
Hardware Class: unknown
Model: "Quantum DLT4000"
Vendor: "Quantum"
Device: "DLT4000"
Revision: "D782"
Driver: "aic7xxx"
Device File: /dev/st0
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #22 (SCSI storage controller)

What more info could you ask for? :-)

It might work under other distributions (I have never tried).

You also have:
sginfo -l
/dev/scd0 /dev/sr0 /dev/nst0
/dev/sg0 [=/dev/scd0 scsi0 ch=0 id=0 lun=0]
/dev/sg1 [scsi1 ch=0 id=2 lun=0]
/dev/sg2 [=/dev/nst0 scsi1 ch=0 id=3 lun=0]

OK, but not quite as informative as hwinfo.

And...
sg_map
/dev/sg0 /dev/scd0
/dev/sg1
/dev/sg2 /dev/st0

And even...
sg_scan
/dev/sg0: scsi0 channel=0 id=0 lun=0 [em] type=5
/dev/sg1: scsi1 channel=0 id=2 lun=0 type=3
/dev/sg2: scsi1 channel=0 id=3 lun=0 type=1

You should be able to find out all you need to with these tools....

Col

Re: How to find SCSI hard disk in the system

Sajeesh O.K — Wed, 30 Jun 2004 22:39:31 GMT

cat the files /proc/driver/cciss directory.
The file names are like cciss0,cciss1 etc.

Sajeesh