How to tell if you have SAS disk?

[Jerry_109]

Hello All,

I ws rading some documentation on creating vpars on npar, and noticed the reference of "SAS drives". How do you determine if you have SAS drives? Will the diskinfo tell me?
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HP-UX B.11.31 ia64 hp server rx7640
########################
# /etc/ioscan -nfkC disk
Class I H/W Path Driver S/W State H/W Type Description
=======================================================================
disk 0 0/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 300 GST3300655LC
/dev/dsk/c0t6d0 /dev/dsk/c0t6d0s2 /dev/rdsk/c0t6d0 /dev/rdsk/c0t6d0s2
/dev/dsk/c0t6d0s1 /dev/dsk/c0t6d0s3 /dev/rdsk/c0t6d0s1 /dev/rdsk/c0t6d0s3
disk 1 0/0/0/3/1.2.0 sdisk CLAIMED DEVICE Optiarc DVD RW AD-5590A
/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0
disk 2 0/0/1/1/0/4/1.5.0 sdisk CLAIMED DEVICE HP 300 GHUS153030VL3800
/dev/dsk/c3t5d0 /dev/dsk/c3t5d0s2 /dev/rdsk/c3t5d0 /dev/rdsk/c3t5d0s2
/dev/dsk/c3t5d0s1 /dev/dsk/c3t5d0s3 /dev/rdsk/c3t5d0s1 /dev/rdsk/c3t5d0s3
########################

# diskinfo /dev/rdsk/c0t6d0
SCSI describe of /dev/rdsk/c0t6d0:
vendor: HP 300 G
product id: ST3300655LC
type: direct access
size: 292968750 Kbytes
bytes per sector: 512
root@vludb1p[/root]
# diskinfo /dev/rdsk/c3t5d0
SCSI describe of /dev/rdsk/c3t5d0:
vendor: HP 300 G
product id: HUS153030VL3800
type: direct access
size: 292968750 Kbytes
bytes per sector: 512

[Steven E. Protter · Accepted solution]

Shalom,

I look up the system at http://docs.hp.com

ITs not really possible to tell other than cross referencing the ioscan output with the documentation.

SEP

[sujit kumar singh]

Hi Jerry,

can try one of teh following things

#ioscan -fnC ext_bus

and see if you can find the devices using the SAS interface or the devices using /dev/sasd0 or /dev/sasd1 etc.


then you can do

#sasmgr get_info -D /dev/sasd0
#sasmgr get_info -D /dev/sasd1

#sasmgr get_info -D /dev/sasd0 -q vpd
#sasmgr get_info -D /dev/sasd0 -q raid

compare with the ioscan -fnCdisk O/P.

This shall help you getting some idea if the system has SAS Disks.

Regards
Sujit