Vibration Tolerance

Help! The construction company preparing to tear down a structure that
butts up against our data center is requesting an estimate of the
vibration tolerance on our 200+ servers, etc., in our data center. I'm
not having much luck getting this info off of the technical spec sheets
on the myriad of servers we have let alone even understanding how to
decipher the info I CAN find. What the heck do I do?? My director
wants this info ASAP. Thanks for any help you can provide even if it's
only to point me to entry level reading material.

In article <1142491269.209947.270430@j52g2000cwj.googlegroups.com>,
[email]theresa.brownfield@gmail.com[/email] wrote:
[color=blue]
> Help! The construction company preparing to tear down a structure that
> butts up against our data center is requesting an estimate of the
> vibration tolerance on our 200+ servers, etc., in our data center. I'm
> not having much luck getting this info off of the technical spec sheets
> on the myriad of servers we have let alone even understanding how to
> decipher the info I CAN find. What the heck do I do?? My director
> wants this info ASAP. Thanks for any help you can provide even if it's
> only to point me to entry level reading material.[/color]

Why not ask the construction company hold off on work before proceeding.
You can start by asking your corporate counsel to discuss the
ramifications of doing damage to your facility and the liability and
exposure to litegation from such actions.

Then call your sales rep or the vendor you bought the machines from. It
may not be a published metric and require research.

Suppose the construction company damages your building such that the
datacenter has to relocate. Has your directory planned for such a
disaster? Might be time to look at that possibility while the
construction is going on next store. Who knows? They might "damage a
power line" while they're working. Ready to loose power and for how
long?

--
DeeDee, don't press that button! DeeDee! NO! Dee...

[email]theresa.brownfield@gmail.com[/email] wrote:[color=blue]
> Help! The construction company preparing to tear down a structure that
> butts up against our data center is requesting an estimate of the
> vibration tolerance on our 200+ servers, etc., in our data center. I'm
> not having much luck getting this info off of the technical spec sheets
> on the myriad of servers we have let alone even understanding how to
> decipher the info I CAN find. What the heck do I do?? My director
> wants this info ASAP. Thanks for any help you can provide even if it's
> only to point me to entry level reading material.
>[/color]

You need to look at the data center as a system, not just at an
individual computer... The vibration level specs of one computer will
not represent your data center tolerance to vibration levels... What you
might want to do is hire some consultants to perform a random vibration
analysis of the whole system, with the input vibration (most likely
random vibration) coming from the demolition company...

First thing I would do is return the question to the demolition company:
ask for a PSD acceleration (or SRS,...) level expected during the
demolition, that should delay them by a bunch :-)

If you'd like to go the consulting route, I just happen to work for a
company that do that for a living (not just for data centers, but for
mechanical systems in general, including avionics), we probably could
help... We could go as detailed as being able to tell you if a DIMM is
going to jump out of its socket :-)

Let me know.

In article <1142491269.209947.270430@j52g2000cwj.googlegroups.com>,
<theresa.brownfield@gmail.com> wrote:[color=blue]
>
>
>Help! The construction company preparing to tear down a structure that
>butts up against our data center is requesting an estimate of the
>vibration tolerance on our 200+ servers, etc., in our data center. I'm
>not having much luck getting this info off of the technical spec sheets
>on the myriad of servers we have let alone even understanding how to
>decipher the info I CAN find. What the heck do I do?? My director
>wants this info ASAP. Thanks for any help you can provide even if it's
>only to point me to entry level reading material.
>[/color]


Since this is comp.sys.sun.admin, call Sun. They do have this information on
the vibration tolerances that were tested for each model. DOn't know about
any other vendors you use though

-Raf