Summary:SATA arrays recommendation.

From: jason kappy <>
Date: Thu May 19 2005 - 09:59:31 EDT
Sorry for the late summary. Thanks to everyone who replied. Here are the links/comments.
Couple of them recommended nexsan.
Following comments made me rethink about SATA:
If you are going to run Oracle on this box, the speed maybe
lower than you think. Radom access on infortrend boxes is rather bad.
Sustained write can be up to 80-120 MBytes/s but random write can be
as slow as 5MBytes/s 
Hitachi. Thunder 9570
 We have arrays from some german whitebox manufacturers but it looks
like 99% of all large arrays nowadays use the same Infortrend
controller. At another customer we are running arrays from Raidweb
( (both IDE and SATA) and they seem to have
been performing just nicely as well. The one time we needed hw support
raidweb came through nicely.
Gateway array.
There was an initial problem with drive failure from a known-bad batch 
of disks, so GW replaced all of the disks in both RAIDs prior to our 
going live with them. Aside from the long wait for a Fiber Channel 
option, we're very pleased with the Gateway 840's.
i am using apples xsan and it came in about 30 % less cost then 
anything else i looked at. and never had any stability issues.
I've had good experience with ATA-to-SCSI and ATA-to-FC RAId arrays 
from Nexsan. I've had one ATABoy2 and one ATABoy2f for two years now, and 
I'm very happy with them.
nexsan and jetstor are good from first-hand experience. Jetstor
tech support ( is great.
We've used Tornado RAIDs with no problems
as long as you stay within the Solaris partition size
limits.  I had to divide the 1.4TB into two 700ishMB
LUNs to make Solaris 8 talk to it with a ufs file system.
The RAID is IDE or SATA internally, and presents itself
to the host as an LVD SCSI device.  You can define 
multiple partitions within the RAID itself, each of which
is a SCSI LUN.  Those can be further divided using Solaris
format commands to meet your needs
I am currently using a device built by equallogic that goes far beyond
your listed specs, but can be toned down quite a bit as costs require.
Ours is about 3.5 TB per unit, with trunked gigabit lines to the 
network providing 500 or 900 transactions/sec through oracle depending on how
the host is configured. We have purchased this through a company named
veristor. Vendor assistance from both companies has been great
      As a part of cutting costs, we are planning to
buy new SATA array for our development region(oracle
DB) instead of SCSI as reliability is not an issue. I
may end up using JBOD or RAID 5. Require around 1TB of
capacity and writes of 50Mbytes/sec/disk or more
should be good enough. This is the max utilzation on
Controller/disk I saw with iostat output. Any vendor
recommendations? How is the support?
I will summarize. I
Thank you,


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Received on Thu May 19 10:00:06 2005

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