Hi!

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Are there any limitations which SCA disks can be put into a E4000's disk
board ? For example: Can I safely use two Fujitsu MAT3300NC disk (SCA,
300GB) as system/boot disk ?

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Bye,
Roland

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Roland Mainz <roland.mainz@nrubsig.org> wrote:
> Are there any limitations which SCA disks can be put into a E4000's disk
> board ? For example: Can I safely use two Fujitsu MAT3300NC disk (SCA,
> 300GB) as system/boot disk ?

Officially/supported? No.

Unofficially? At a minimum you'll need to get the datasheets for those
disks and for some disks which are supported in the E4000, and compare
the powre required and the heat generated by the disks. If your new
disks are less than ones which are supported then you _should_ be OK.

The disk boards in E4000's are fairly tight, and sit very close to other
critical components in the machine (eg, the CPUs) so you want to be very
careful that you check thing right, or you might end up frying something.

  Scott

Scott Howard wrote:
> > Are there any limitations which SCA disks can be put into a E4000's disk
> > board ? For example: Can I safely use two Fujitsu MAT3300NC disk (SCA,
> > 300GB) as system/boot disk ?
> 
> Officially/supported? No.
> 
> Unofficially? At a minimum you'll need to get the datasheets for those
> disks and for some disks which are supported in the E4000,

Where can I find that list ?

> and compare
> the powre required and the heat generated by the disks. If your new
> disks are less than ones which are supported then you _should_ be OK.

I can't imagine a disk which can get hotter than the current 2.1GB
ones... =:-) I bet 99.9999% of all other SCA disks are far far cooler
than this beasts...

> The disk boards in E4000's are fairly tight, and sit very close to other
> critical components in the machine (eg, the CPUs) so you want to be very
> careful that you check thing right, or you might end up frying something.

The box won't have all CPU board slots populated - does that help
somehow to avoid frying something (I don't have the E4000 here at home
to have a look right now... :) ?

----

Bye,
Roland

-- 
  __ .  . __
 (o.\ \/ /.o) roland.mainz@nrubsig.org
  \__\/\/__/  MPEG specialist, C&&JAVA&&Sun&&Unix programmer
  /O /==\ O\  TEL +49 641 7950090
 (;O/ \/ \O;)

Roland Mainz <roland.mainz@nrubsig.org> wrote:
>> Unofficially? At a minimum you'll need to get the datasheets for those
>> disks and for some disks which are supported in the E4000,
> 
> Where can I find that list ?

You can get a list of what drives are supported from the Sun System
Handbook (http://sunsolve.sun.com and click on the SSH link). For the
datasheets you're going to have to put google to use...

> I can't imagine a disk which can get hotter than the current 2.1GB
> ones... =:-) I bet 99.9999% of all other SCA disks are far far cooler
> than this beasts...

The 2.1Gb disks are 7200 RPM. Certainly some of the 10000RPM disks draw
more power/produce more heat than the old 2.1/4.2Gb ones...

> The box won't have all CPU board slots populated - does that help
> somehow to avoid frying something (I don't have the E4000 here at home
> to have a look right now... :) ?

Just make sure you put the disk board in a slot which has a PCM (power
cooling module) next to it so that there's airflow across the disks.

  Scott