Peter Palfrader aka Weasel <[EMAIL PROTECTED]> writes:
> > what makes you believe that spinning down drives is needed at all? > The reason that the fans to keep the disks cool are too loud for me to > have my box running during the night (my box is in my room). :) I bet you don't want to hear this, but /me thinks you made a mistake purchasing those drives :-/ [1] > > > PS: fyi: the scsi controller is an AHA 2940 U2W, the disks are IBM > > > DRVS09V and there's one swap partition on each of them. I've five md > > > > have you had a look at IBM's specs as to how many spin-up-spin-down > > cycles these drives are specified for? IIRC, these are server-drives > > and thus not specified to survive a lot of power-cycles but rather a > > log time of continuous operation. > > I doubt I'll have problems.. (At least I hope so :) unfortunately, I disposed off these old issues of C't[2] but by rotten brain clearly recalls being nervous about my own drives after reading that article about the matter of silencing (sp?) pooters and the issue of loud and hot drives. I disassembled my own case just to see that I got the letters wrong (I'm using DCAS drives) and that my drives are spec'd for more power-cycles than I usually do by powering down the machine twice a day in more than five years (siesta and night) but also said article told me to immediately get a spare drive of the same series because the newer drives are spec'd for less power-cycles (the really fast ones, that is). I recall only one number exactly, and that was a 10000rpm drive by Seagate which is specified for ten years of non-stop operation but for only as few as 4000 power-cycles. (roughly once a day in it's useful lifetime!) so my advice is to check IBMs specs before asking for trouble first. Second, go for passive drive coolers and see how that works out. in the end, this is only my opinion and you're free to disagree. I've had my share of dying drives, though, and my DAT is one of the more frequently-used devices. [1] not, that they're bad, it's just that they lead to bad sleep in your case. [2] if you're really interested, I might dig up the issue from my old mail archives; after all, this came up more than once. kind Regards, -- Eberhard Burr check http://www.uni-karlsruhe.de/~Eberhard.Burr/publickey.asc for PGP Key -- #include <stddisc.h> -- electric cookie follows You have not converted a man because you have silenced him. -- John Viscount Morley
