Calling all sages
We're going to replace our S814 (3 cores activated) 6 TB internal HDDs
machine
with a S914 (3 cores activated) 18 931GB Mainstream SAS 4k SFF-3 SSD
machine.
Is this a viable DASD configuration for a write intensive environment?
(it is common knowledge that SSD writes are only slightly faster then HDD
writes right?)
TIA
Gad
date: Wed, 28 Mar 2018 13:29:31 +0000
from: Diego Kesselman <diegokesselman@xxxxxxxxx>
subject: Re: What is the difference between Flash storage and a Flash
Storage system like the V9000/V7000
IBM Power Systems HDD and SSD options offer enhanced performance at a lower
cost and deliver server enhancements
https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=
an&subtype=ca&appname=gpateam&supplier=897&letternum=ENUS117-086
BTW: V9000 is as fast as internal SSDs, but I've seen high workloads on
enterprise systems wih no performane impact and no changes on service time
(always 0.3x ms, even on backup window)
I'll discard V5x unless you need storage on a budget. You'll feel
degradation from your enterprise SSDs
El 28 mar. 2018 07:18, "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx> escribi?:
Diego,
I'm currently using internal Enterprise SSD - 775gb SFF-2 SSD for IBM I
ESOH.
I've talked to some performance folks, and most agreed you can't beat
internal SSD with a top controller.
< On the other side there's a "mainstream" 931GB SSD with same price per GB
as an HHD, and 18% faster than a normal SSD.
What do mean by this?
Paul
midrange.com
