It all depends on the workload that you want to perform across the
volumes contained within those populations of drives.
You may, or may NOT see a difference. Reliability isnt a huge issue,
since Raid-DP and an active support contract take care of the 100%
failure rate that -all- hard drives eventually achieve.
If you remove the issues concerning raid groups sizing, if/how you use
flex volumes, and directory sizes..Its all about balancing the cost of
ATA against the IOPS benefit of FCAL.
-----Original Message-----
From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com]
On Behalf Of John Clear
Sent: Wednesday, January 18, 2006 10:46 AM
To: Michael Haller; toasters(a)mathworks.com
Subject: RE: DS14MK2 with 300GB versus 144GB - question
I have about 800 300GB drives across a bunch of FAS980s and R200s and
about 400 144GB drives across a bunch of F880s/FAS960s/FAS270s according
to DFM.
Throughput seems fine, although I have done any specific benchmarks.
The high density reduces space/power/cooling requirements, which has its
own benefits.
John
-----Original Message-----
From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com]
On Behalf Of Michael Haller
Sent: Wednesday, January 18, 2006 2:33 AM
To: toasters(a)mathworks.com
Subject: DS14MK2 with 300GB versus 144GB - question
Hi,
Does anybody have any experience or comments on the use of a single
DS14MK2 with 300GB drives versus two DS14MK2 with 144GB dirves. I would
have thought that throughput, reliability and on-going costs would be
better with the 144s.
Any comments or advice appreciated.
Ta,
- Michael