Motherboard query... - 4-port ide cards - hotswap ide

alvin at Maggie.Linux-Consulting.com alvin at Maggie.Linux-Consulting.com
Fri Mar 1 17:41:25 EST 2002


hi ya kevin

am looking for plain old 4-port or 6-port or 8-port ide controllers....
	- for sw raid...

- for "real hardware ata raid controllers"... i'd expect that it'd be
  listed on this page ???
	http://www.linux-ide.org/chipsets.html

thanx
alvin
http://www.1U-Raid5.net ... 1U raid stuff..

On Fri, 1 Mar 2002, Kevin Wood wrote:

> Alvin
> 
> Have you tried the promise SX6000?  It is a six channel IDE raid card that
> is capable of doing raid 5 and requires one drive per channel.  It will run
> up to 128MB of SDRAM.  I have used one and they run about $300.  I have to
> admit it was under Win2000, but it might work under your OS.  Seemed pretty
> quick.  Any one else have experience?
> 
> http://www.promise.com/product/subsys_detail_eng.asp?pid=86&fid=2
> 
> Kevin Wood
> GSHiis, Inc.
> http://www.gshiis.com
> kwood at gshiis.com
> 
> -----Original Message-----
> From: beowulf-admin at beowulf.org [mailto:beowulf-admin at beowulf.org]On
> Behalf Of alvin at Maggie.Linux-Consulting.com
> Sent: Friday, March 01, 2002 6:28 AM
> To: Bill Broadley
> Cc: ml at fms-computer.com; beowulf at beowulf.org
> Subject: Re: Motherboard query... - 4-port ide cards - hotswap ide
> 
> 
> 
> hi ya
> 
> i havent tried 3ware... but  are there other 4-port or 8-port
> IDE controllers ??
> ( just plain old ide... like the promise/maxtors ultra/100 series )
> 
> ( not 4 drives on 2 ide cables...but 4 (master) drives on 4 ide cables )
> 
> 
> btw... has anybody tried the ide to scsi hot-swap adaptors ??
> 
> 	http://www.cardaysupply.com/bridges.html
> 
> thanx
> alvin
> http://www.1U-Raid5.net ... sw & hw raid stuff..
> 
> 
> 
> 
> On Fri, 1 Mar 2002, Bill Broadley wrote:
> 
> > On Thu, Feb 28, 2002 at 11:50:04PM +0100, ml at fms-computer.com wrote:
> > > On Thu, Feb 28, 2002 at 04:07:25PM -0500, Robert G. Brown wrote:
> > >
> > > Hello,
> > >
> > > belong to your problems with the IDE-Raidsystem i can remark, that we
> have
> > > very good experiences with the hostbased controllers from 3ware
> (3ware.com).
> > > They have controllers with up to eight channels and our benchmarks show
> > > results between 50-60 MB/s at Raid-Level 5 (with 8* 120 GB Maxtor, 5.400
> > > rpm). That should be the right controller for your purposes -> 3ware
> Escalade 7850B
> >
> > Another data point.  I was very optimistic about eide raid, my previous
> > linux software raid server had uptimes over 400 days, so I built the raid
> > system out of the best components I could find.  Intel STL2 motherboard,
> > ECC memory, redundant power supply, rack mount case with good airflow,
> > 8 ibm eide drives, and the top of the line 3ware, the 6800.
> >
> > I downloaded the 3ware drivers, installed the redhat-7.2 (maybe it was
> > 7.1), looked good although dissappointingly slow (8 drives much slower
> > then a single drive).  Lost a filesystem (unfsck'able), called 3ware,
> > they said oh, redhat-7.2 isn't supported, use 7.1.  We did, and lost
> > another filesystem.  We called back, oh a new driver should be available
> > next month.  We waited, upgrade the 3ware bios, updated the driver, and
> > lost another filesystem, tech said, well *laugh* yeah they do that quite
> > a bit, use raid 1.  Then they commented that the 6800 wasn't designed
> > for raid 5 and shouldn't have be advertised that way, but 3ware rushed
> > it out despite the poor fit for the hardware because of the competition.
> > Purchasing the new top of the line card was recommended.  At which point
> > I removed the card, recycled the drives into desktop and went scsi,
> > which has been perfect since.
> >
> > I posted to various mailing lists my experience, and got quite a few
> > responses saying that they had the same problem, and had ditched 3ware.
> >
> > I seem to recall seeing a press release or similar saying 3ware was
> > getting out of the eide raid controller business, but I'm guessing
> > that either wasn't true or they changed their mind.
> >
> > Buyer beware.
> >
> > --
> > Bill Broadley
> > Mathematics/Institute of Theoretical Dynamics
> > UC Davis
> > _______________________________________________
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> >
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