At Sat, 12 Aug 2006 00:30:40 +0200, Johannes Volkmann wrote: > > I have an iBook G3 700 Mhz here, running an 2.6.17.6 and a debian > sid. Runs fine so far, sleepmode works etc. Unfortunately I had an > HD failure and had to replace the HD. I bought an SAMSUNG MP0804H > and replaced it. I have not been able to stop this disk from running > so far! > > If I try to enable apm via hdparm, it gets me no errors: > # hdparm -k 1 -B 150 /dev/hda > > /dev/hda: > setting keep_settings to 1 (on) > setting Advanced Power Management level to 0x96 (150) > keepsettings = 1 (on) > > It prints no errors, neither on the terminal, nor in any logfile I > checked. But still, it doesn't change the setting, the harddisk is > running all the time and hdparm shows me, it changed nothing: > # hdparm -i /dev/hda > > /dev/hda: > > Model=SAMSUNG MP0804H, FwRev=UE100-19, SerialNo=S042J10L253128 > [...] > AdvancedPM=yes: disabled (255) WriteCache=enabled > [...]
Did this work with your previous harddrive? The harddrive in my iBook G4 (Toshiba) also lets me adjust the setting, but when using the '-i' option, I get this: AdvancedPM=yes: unknown setting WriteCache=enabled But I've never actually used the "-B" option. I always use the "-S" option of hdparm to specify a timeout for the drive to spin down after a given period of inactivity. > What can I do about it? It is not very healthy for the hd to run all > the time, I can hear it scratching if I move the machine. Are you using journalled file systems? If so, then it's possible that the harddrive never gets a chance to spin down, because the journal is committed regularly. You can try to explicitly specify the commit interval as a mount option. Or you can check out laptop-mode-tools: this is a script that relies on the laptop-mode feature in the Linux kernel to delay and group disk writes, so as to minimise the time that the disk is spun up. Ruben -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
