RE: DS20L

[Iwao Makino <rickey-co mug biglobe ne jp>]

At 18:47 -0400 on 30.05.2002, Peter Petrakis wrote regarding RE: DS20L:
> It depends on how diligent the outfit is concerning the welfare of their
> equipment and their electronic infrastructure. If it's cheaper for them
> to cover the expense of failed disks and dead equipment due to over-temp
> then fine, That's what they've come to realize what "their time is worth".
> Me on the other hand, If I can get more cooling than is required to 'prevent'
> premature failure and extend the life of existing hardware. I've made my job
> easier and increased everyone's efficiency because there is less downtime.

I agree & understand.  Then, most of client took same approach, but not for
1U instead boxed or 3U instead.

oh, btw, stacking 40 of them, another not good comment from user...
Weight can't hold floor of most buildings:(

> It should be no more paper work than it would take to contract an electrician
> to add more power to your machine room.

Not really. More work, as modification to building and more electric work.
It usually require more work and needs permit to do such.

> Companies that don't take
> maintenance seriously 'will' pay for it later.

I agree.  Unfortunately, most of client wasn't companies and serious about 
that part.

> 5?C to 35?C (41?F to 95?F) Is the spec. I like things on the cool side.

True, as long as you can, lower temp(above spec of course) is better idea.

> Running at 30C is damn hot, 86F. I wouldn't step foot in that room and if 
> that's
> the ambient temp your 10K hard drives 'will' be failing sooner than later. 
> Even
> if you went and ran CS20's at the high side, 96F. Would you really recommend
> subjecting that and other equipment to that temp? Nevermind humans :-)

No way, I won't.  but users DO:) Really... many users running system intheir
office/labs that has ONLY normal AC for office use... and it gets shut down
in off-hours.

> It's not required but it's common knowledge that "heat kills". They're very
> expensive investments and with just a one year warranty I honestly believe
> that customers should be taking better care of these machines.

I know this is common knowledge, but it seems this doesn't apply to everyone:)


PS: Sorry folks whos not interested about this stuff.