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Difference between "SAS" and "serial SCSi" drives

 
Lenny Davis
Regular Advisor

Difference between "SAS" and "serial SCSi" drives

Have recently ordered an HP Proliand DL350 G5 server with 3 72G drives. 2 of the drives are labelled 'serial SCSi' with a spare part number 376597-001 and the 3rd is labelled 'SAS' with a spare part number 434916-001.

Can someone tell me what the difference in these drives please as they look pretty identical at first glance, however the SAS drive fits in snuggly to all 6 drive bays whereas the 2 serial SCSi are very difficult to push in and remove. As a consequence, one of them has pretty much fallen apart and the other the metal is bent at the bottom. They are subsequently both unuseable.

Thanks

Lenny
3 REPLIES
juan quesada
Respected Contributor

Re: Difference between "SAS" and "serial SCSi" drives

Hi,

SAS stands for Serial Attached SCSI but they normally are called serial SCSI

---spare 376597-001 = Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive

---spare 434916-001 = Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive

they are the same SAS drives but the have diff product spares and product models so the hdd revision are different between them

regards,
Lenny Davis
Regular Advisor

Re: Difference between "SAS" and "serial SCSi" drives

Thanks, but what does "hdd revision" mean? If they're essentially the same then does it mean I've just been delivered 2 "Serial SCSi" disks from a faulty batch which are slightly too big to fit in the server properly?

Thanks

Lenny
juan quesada
Respected Contributor

Re: Difference between "SAS" and "serial SCSi" drives

it goes as follow

MODEL
LATEST REVISION
OPTION NUMBER
SPARE NUMBER
DESCRIPTION

DG072A3515
HPD1
375861-B21
434916-001
Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive


DG072A495
HPD6 (10/24/2007)
375861-B21
434916-001
Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive


DG072A8B54
HPD7 (5/31/06)
375861-B21
376597-001
Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive

DG072A8B5C
HPD4 (7/11/05)
375861-B21
376597-001
Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive

DG072A9BB7
HPD0

375861-B21

376597-001
Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive

DG072ABAB3
HPDC
375861-B21
434916-001
Hot-Plug 72GB 10K rpm, SFF 2.5" Single-Port SAS hard drive

as you may see all are SFF (small form factor) 2.5", it is basically the same technology with diff revision for each product (small variations between them)