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Gut says that sounds like a big waste of a $1,000 PDU. Don't know squat about that particular UPS but won't the PDU plug into the UPS? What little power the external DVD draws you might as well plug into the PDU. After all, would you like a temporary power glitch to fry your OS upgrade on your iSeries? For most of our 520/570 stuff we use the $1,000 PDU's. But the system unit of our 520, HMC, tape drives, and some other devices are all plugged into third party PDU's. We have this honking big UPS for all pluggable equipment in the room. And a generator for the whole building. (And now that we have this all wired, they want to play musical chairs and move the department to the next building and sell off this building. Optimist says "All right, we get to design a datacenter from scratch." Anyone want to buy a data center?) Rob Berendt -- Group Dekko Services, LLC Dept 01.073 PO Box 2000 Dock 108 6928N 400E Kendallville, IN 46755 http://www.dekko.com Mark Phippard <MarkP@xxxxxxxxxxxxxxx> Sent by: midrange-l-bounces@xxxxxxxxxxxx 08/18/2004 03:31 PM Please respond to Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx> To Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx> cc Fax to Subject Re: HMC Question midrange-l-bounces@xxxxxxxxxxxx wrote on 08/18/2004 03:42:55 PM: > The PDU in the rack should also work with xSeries machines though if > you get redundant power on the x boxes and only have one PDU you'll > rapidly run out of plugs. Each PDU only supports about 6 connections so > 'do the math'. > Correct me if I am wrong. Power comes from the wall into the PDU. The UPS (9910-P33) is connected to the PDU, and the iSeries and HMC are connected to the UPS. Stuff like the external DVD can be connected to the PDU. So here is my questions, for our 3 xSeries servers, does the UPS have enough juice to take all of those, plus our iSeries and HMC or would we want a second rack-mount UPS to power the xSeries servers? In this scenario, the PDU would seem to have enough plugs since it is really just the UPS that is plugged into it. Thanks Mark _____________________________________________________________________________ Scanned for SoftLanding Systems, Inc. by IBM Email Security Management Services powered by MessageLabs. _____________________________________________________________________________ -- This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/midrange-l or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.
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