new disk ?

[Malleron Mathieu]

Hi ,
I need some help about a disk , and hope you can help me for my choice :

i have a StorageWorks Disk System 2100 with
3*73 GO and i want add a 4th disk .
my problem is : can i add a 144go disk in this last slot ? and hpux will recognize it ?
and if not , can i add this disk in my J5600 ?
Thank you all in advance .

Mathieu.

[Vincent Farrugia]

Hello,

It depends on the disk. What is the part number of the disk in question? For the 2100, it should be a Ultra160 disk.

HTH,
Vince

[Malleron Mathieu]

ok ,
i have the choice between :
-a seagate 73 go 10k rpm scsi320
-a seagate 146 go 10k rpm scsi320 "DBT"

for the first disk im 90% it will work ,
but not for the second .

[Leif Halvarsson_2]

Hi,
The 2100 is a JBOD disk system, the question is more if your server support the disk (I think it does). It is possible to mix U320 and U160 disks on the same bus , if your 73GB disk work then the 146GB also should work.

[Malleron Mathieu]

Hi , thank for your answers .
You mean : The real questions is if the OS will recognize the disk , or if the firmware will recognize it ?

[Leif Halvarsson_2 · Accepted solution]

Hi,

As your disk system is a JBOD the host will see all disk as separate physical disks.
If all devices and your HBA is compatible it should be no problem.
I am not sure about the product number for your disk but in general seagate U320 drives is backwards compatible with older SCSI standards and also support both LVD and SE mode.
You should note, if mixing LVD and SE devices on the same bus all devices is forced to operate in SE mode. In this case you will perhaps not get the full performance of a U320 disk.

The disk size is not a problem if you don't use a very old HP-UX. 10.20 and 11.x support larger disks then 146GB.

[Eugeny Brychkov]

Adding non-HP disk inside HP devices may lead to unsupported configuration. Generally seagate disks will work, but hpux may have problems booting from the disks having non-HP firmware
Eugeny

[Caesar_3]

Hello!

I think you can add the disk to 2100 and
it will work, but if you have the disk it's
not hard to check.

Caesar

[hyun-seok kim]

1. Introduction of U320 Capable SCSI Hard Disk Drives

????????? ?????? ????????? ???????????? ????????? U160 ???????????? ?????????
?????? ????????? ???????????? ????????? U320 ??????????????? 320MB ?????? ??????
?????? DS2100(?????? 73GB 15k, 146GB 10K)??? DS2300??? ????????? ??????.
DS2100 ?????? ?????? ????????? 160MB ?????? ???????????? ??????
Product # Description Product ID Exchange Part Number
A6571A 36GB LP 10k LVD SE U320 ST336607LC A6571-69001
A7285A 73GB LP 10k LVD SE U320 ST373307LC A7285-69001
A7286A 73GB LP 15k LVD SE U320 ST373453LC A7286-69001 --> ?????????????????? DS2100 ????????????,SCSI reset ??????
A7287A 146GB LP 10k LVD SE U320 ST3146807LC A7287-69001 --> ?????????????????? DS2100 ????????????,SCSI reset ??????
A7328A 18GB LP 15k LVD SE U320 ST318453LC A7328-69001
A7329A 36GB LP 15k LVD SE U320 ST336753LC A7329-69001