Messages in this thread | | | Date | Fri, 3 Apr 1998 19:10:41 +0200 | From | Harald Koenig <> | Subject | how to slow down IDE ? |
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HELP!
I need to slow down IDE accesses for a Toshiba notebook with unknown PCI/IDE chipset (`hdparm -p N /dev/hda' says `function not implemented' for generic 2.0.33).
the hard disk seems to be somehow damaged and will lockup the system after some seconds of sustained access with hd LED _on_. the notebook worked _rock_solid_ for months until yesterday, with no software change or whatsoever; trying to boot clean kernel from FD or CD won' help either.
I'd like to slow down hd access to be able to run a backup or copy the disk in Linux because right now Win95 still runs fine, but here the hd LED is always only flickering and has ~0.5 pauses after every few seconds even when running `scandisk' or similar, while in Linux the LED is solid _on_ for sequential hd accesses (even when only reading 512 bytes per read which still gives 3 MB/sec; this is a IBM DLGA-23080 disk).
`hdparm /dev/hda' shows all parameters being 0 (zero) except for `readahead' which is 8. lowering readahead to 1 won't help, the system still locks up within seconds :-(
any idea how to access/copy this disk ?
Harald -- All SCSI disks will from now on ___ _____ be required to send an email notice 0--,| /OOOOOOO\ 24 hours prior to complete hardware failure! <_/ / /OOOOOOOOOOO\ \ \/OOOOOOOOOOOOOOO\ \ OOOOOOOOOOOOOOOOO|// Harald Koenig, \/\/\/\/\/\/\/\/\/ Inst.f.Theoret.Astrophysik // / \\ \ koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^
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