hi dima think different motherboard uses different onboard ide controllers... ( dont know which one is which...
- promise card i was referring to is the Proise ata/100 series not the onboard controllers yes... most 1U chassis comes with one 1 power supply... ( no physcial room in the back... -- sorta offtopic...but thought i'd add the comments -- and we can discuss offline if needed... one 1u manufacturer put a powersupply in front and one powersupply in the back... - a neater option would have been to use the newer mini-atx motherboard...about 8"x8" square... which still have room for 2 1u powersupply in the back... - even if you had 2 power supplies... - most motherboards only has one atx power connector - are the two power supplies properly doing load sharing... - when/how does the redundant power circuit kill off the other dying/dead power supply - if the motherboard did have 2 atx connectors... - is it doing proper load sharing??? - can the 2nd power supply drive the motherboard even if the other powersupply is dead - if you had two power supplies... - how does the disk gets it spower... ( need special circuitry to drive the disks ( minimally, 2 diodes for each of the power supply fun stuff alvin http://www.Linux-1U.net ... On Thu, 26 Apr 2001, Dimitri Maziuk wrote: > On Thu, Apr 26, 2001 at 03:23:03PM -0700, Alvin Oga wrote: > ... > > your options for 6 or 8 disks are the promise cards > > and/or 3ware ... > > Well, unfortunately purchasing is a bit strange around here... > That mobo (with HPT-370 controller) is the one we can buy > _easily_ -- from the university's techstore. A mobo with > promise is a bit more difficult... > > > has anybody measured the +12V current needed when all > > 8 drives start up...at the same time... hummm.... > > Yes, n+1 PS sound like a good idea for this sort of work. > I notice your 1U cases only have one PS. ;) > > Thanks > Dima > -- > E-mail dmaziuk at bmrb dot wisc dot edu (@work) or at crosswinds dot net > (@home) > http://www.bmrb.wisc.edu/descript/gpgkey.dmaziuk.ascii -- GnuPG 1.0.4 public > key > We're sysadmins. Sanity happens to other people. -- Chris King in asr > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >