Learned a new factoid last night that you should keep in mind. The power draw will spike when a redundant power supply goes in and out (or up or down). We managed to brown-out a pdu while swapping a bad ps last night. Quick way to crash a filer.

-MikeC

-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Maglinger, Paul Sent: Friday, August 27, 2004 5:25 AM To: 'NetApps list server' Subject: Amperage readings for NetApp 740 head and shelves

My profound thanks to the numerous replies. A little clarification... This was for sizing PDUs (Power Distribution Units for you non-Compaq/HP folks) for the server racks and not for air conditioning. Compiling all the information I went with 2.25A@120VAC for the 740 head and 3.0A@120VAC for the shelves. I think this will get us close enough where we can balance the load sufficiently.

Thanks again!

Has anyone taken any amperage readings on their heads and shelves? I

see by

the label that the shelves are rated at 5.5A/120VAC 3.2A/240, but I'm wondering about the actual current draw. I could disconnect one of

the

power supplies to get the reading, but this is a production system and

don't

want to tempt fate.

Thanks!

That that is, is; that that is not, is not; that that is, is not that

that

is not; that that is not, is not that that is. Is that not it? It is.

Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674

pmaglinger@scvl.com