Unix Technical Forum

SCSI compatibility question

This is a discussion on SCSI compatibility question within the Sun Solaris Hardware forums, part of the Solaris Operating System category; --> I'm sorry - I really should become more informed on SCSI compatibility issues :-( I am looking to buy ...


Go Back   Unix Technical Forum > Unix Operating Systems > Solaris Operating System > Sun Solaris Hardware

FAQ Members List Calendar Search Today's Posts Mark Forums Read
  #1 (permalink)  
Old 01-16-2008, 12:58 PM
Beardy
 
Posts: n/a
Default SCSI compatibility question

I'm sorry - I really should become more informed on SCSI compatibility
issues :-(

I am looking to buy an IBM 36GB SCA disk on eBay and put it into a 6-bay
Multipak. The spec for the drive is that it has an Ultra320 interface. I
have had a fail with an 9GB Ultra160 drive previously, so am nervy now
about the prospects of Ultra320. Is it possible that I juat had a broken
drive, or was it that the SCSI controller could not do U160 and the
drive was not downward compatible/sensing?...

Large vodka and FAQ (one block of ice) required immediately.

Any thoughts greatly appreciated.

TIA,


Beardy.

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #2 (permalink)  
Old 01-16-2008, 12:58 PM
Lasse Jensen
 
Posts: n/a
Default Re: SCSI compatibility question

Beardy wrote:

> I'm sorry - I really should become more informed on SCSI compatibility
> issues :-(
>
> I am looking to buy an IBM 36GB SCA disk on eBay and put it into a 6-bay
> Multipak. The spec for the drive is that it has an Ultra320 interface. I
> have had a fail with an 9GB Ultra160 drive previously, so am nervy now
> about the prospects of Ultra320. Is it possible that I juat had a broken
> drive, or was it that the SCSI controller could not do U160 and the
> drive was not downward compatible/sensing?...


I have often fast drives on slower controller and vice versa, with no
problems. The only thing you has to keep in mind is the cable, don't use a
cable designed for slower transfers than you actually use, you will get all
sorts of wierd errors.

--
Lasse Jensen [fafler at linuxmail dot org]
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #3 (permalink)  
Old 01-16-2008, 12:58 PM
Michael Laajanen
 
Posts: n/a
Default Re: SCSI compatibility question

HI,

Beardy wrote:
> I'm sorry - I really should become more informed on SCSI compatibility
> issues :-(
>
> I am looking to buy an IBM 36GB SCA disk on eBay and put it into a 6-bay
> Multipak. The spec for the drive is that it has an Ultra320 interface. I
> have had a fail with an 9GB Ultra160 drive previously, so am nervy now
> about the prospects of Ultra320. Is it possible that I juat had a broken
> drive, or was it that the SCSI controller could not do U160 and the
> drive was not downward compatible/sensing?...
>

You only need to check that if the drive is not a HVD(High voltage diff)
and that the drive if it is a LVD drive that it will automatically
change to no LVD(single ended) that is.

Speed and stuff is no problem, but as always it is good to read the PDF
spec on the IBM/Hitachi web just in case.

> Large vodka and FAQ (one block of ice) required immediately.
>

No need on SCSI!


IBM drives are very good, but so are most of todays brands.

/michael

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #4 (permalink)  
Old 01-16-2008, 12:59 PM
Beardy
 
Posts: n/a
Default Re: SCSI compatibility question

Michael Laajanen wrote:
> HI,
>
> Beardy wrote:
>
>> I'm sorry - I really should become more informed on SCSI compatibility
>> issues :-(
>>
>> I am looking to buy an IBM 36GB SCA disk on eBay and put it into a
>> 6-bay Multipak. The spec for the drive is that it has an Ultra320
>> interface. I have had a fail with an 9GB Ultra160 drive previously, so
>> am nervy now about the prospects of Ultra320. Is it possible that I
>> juat had a broken drive, or was it that the SCSI controller could not
>> do U160 and the drive was not downward compatible/sensing?...
>>

> You only need to check that if the drive is not a HVD(High voltage diff)
> and that the drive if it is a LVD drive that it will automatically
> change to no LVD(single ended) that is.
>
> Speed and stuff is no problem, but as always it is good to read the PDF
> spec on the IBM/Hitachi web just in case.
>
>> Large vodka and FAQ (one block of ice) required immediately.
>>

> No need on SCSI!
>
>
> IBM drives are very good, but so are most of todays brands.
>
> /michael
>


Many thanks indeed to you, Thomas and Lasse for the feedback/insights.


Beardy.

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump


All times are GMT. The time now is 12:29 PM.


Powered by vBulletin® Version 3.6.5
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.2.0
www.UnixAdminTalk.com