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Date:      Thu, 25 Jan 2001 00:59:05 -0700
From:      "alex huppenthal" <alex@aspenworks.com>
To:        "Tom Samplonius" <tom@sdf.com>, "Dennis" <dennis@etinc.com>
Cc:        "Tom ONeil" <tom.oneil@tacni.com>, "Free" <freebsd-isp@FreeBSD.ORG>
Subject:   Re: 2U server choice - experience/suggestions?
Message-ID:  <000901c086a4$b19f0080$1700a8c0@d7k>
References:  <Pine.BSF.4.05.10101241542580.2868-100000@misery.sdf.com>

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Will the Dell Poweredge 2450 with on board RAID controller work? We're
considering that system as a FreeBSD host.

 -Alex



----- Original Message -----
From: "Tom Samplonius" <tom@sdf.com>
To: "Dennis" <dennis@etinc.com>
Cc: "Tom ONeil" <tom.oneil@tacni.com>; "Free" <freebsd-isp@FreeBSD.ORG>
Sent: Wednesday, January 24, 2001 4:53 PM
Subject: Re: 2U server choice - experience/suggestions?


>
> On Wed, 24 Jan 2001, Dennis wrote:
>
> > >   If you don't mind a 3U format, try the IBM eServer x340.  I don't
think
> > >you will find anything that can beat it:  redundant power supplies, up
to
> > >two CPUs, 133mhz FSB, 64bit PCI, three hotswap SCSI bays and three more
> > >can be added, and redundant and hotswap fans.  The fans are
particularly
> > >nice.  The x340 doesn't use CPU fans, but an air-flow tunnel over the
> > >CPUs, which a full-size hostswap fan at each end (push, pull
arragement).
> > >If one of these fans fails, the other speeds up, with no software
> > >intervention required.
> > >
> > >   Of course, IBM ServeRAID cards aren't supported by FreeBSD, so I use
a
> > >Mylex AccelRAID 352 in it.  IBM owns Myles now, so IBM has no problem
with
> > >this.  The hotswap bays support SAF-TE, so rebuilding of failed drives
is
> > >automatic too.
> >
> >
> > 3u is kind of a waste, as with a 4U you generally dont need a riser so
you
> > get maximum functionality for a little extra space (including 64bit
> > functionality).
> >
> > in making a choice, its good policy to stay away from proprietary
layouts
> > (the intels servers for example, and compaq) because you are locked into
> > specific MBs at least. There are plenty of generic solutions around that
> > take regular MBs which offer you the maximum flexibility.
> >
> > Whats good to use today may not be true tomorrow, so you need to keep
your
> > options open in an environment like freebsd.
> >
> > DB
>
>   Well, you can use regular cards in a 3U card without a riser.  And 64bit
> cards too.
>
>   Propietary layouts offer more features.  For instance, IBM include light
> guide diagnostics on their motherboards.  No else offers that.  Besides,
> the motherboard is part of the package.  You can't buy a generic chassis,
> and a generic motherboard, and get anything as tightly integrated as IBM
> eServer x340.
>
>   For instance, if a CPU fan dies on your generic motherboard, the best
> you can hope for is for the CPU to clock down.  And you will have to power
> the server down to replace the CPU fan.  But with a integrated
> motherboard/chassis combo like the x340, no problem.  There is no clock
> down required, and all fans are hot-pluggable.
>
>   http://www.pc.ibm.com/us/eserver/xseries/x340.html
>
>
> Tom
>
>
>
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>



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