2006/1/24, Shawn Usry <shawn@xxxxxxxxxxxxxx>: > Hmm..that brings up an interesting question - > > Could/would/should a lack of sufficient power to the system, cause disk errors to show up, especially under high I/O? > > Anyone with experience in this? > Of course boy, and I've seen some. Working on a proto based on a Via Epia 10k (Nehemiah), with a home-brew power supply and a couple of pelletier modules, I had problems with 2 IDE drives that were difficult to identify : - spining was quite a long process, but went always ok (drives had trouble to get to full speed, took 10secs for them to warm up). - at heavy load, random crash (and you know how ide crashes). After a long study, it came that the PSU voltage drop down for 12V (at 10.8V, box crashes, net log says). So my (real) question would be : - how much a drive consumes ? how long can it be on diet ? and, on top of this : Is it possible to make the drives turn slower ? To make the heads move slower ? That would be my dream. No more heat, a 10mA consumption, no more noise... - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
