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Date: Fri, 28 Nov 2008 12:36:46 +0300
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Subject: Re: [sisyphus] kernel 2.6.27-std-*-alt3
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Michail Yakushin пишет:

>> Да, нахождение винта гарантировано, но вот скорость.....
> это с каким драйвером 1.5 ? создаётся впечатление что он работет на
> старом PIO вместо DMA

Да нет тут ни какого впечатления. В PIO он и работает.

#hdparm /dev/hde

/dev/hde:
  multcount     = 16 (on)
  IO_support    =  0 (default)
  unmaskirq     =  0 (off)
  using_dma     =  0 (off)
  keepsettings  =  0 (off)
  readonly      =  0 (off)
  readahead     = 256 (on)
  geometry      = 65535/255/63, sectors = 1250263728, start = 0

# hdparm -t /dev/hde

/dev/hde:
  Timing buffered disk reads:   10 MB in  3.70 seconds =   2.70 MB/sec

#lsmod |grep ide_
ide_generic             6528  0 [permanent]
ide_pci_generic         7684  0
ide_disk               16384  7
ide_core              107336  4 ide_generic,ide_pci_generic,ide_disk,piix

#uname -a
Linux Serv.HOME 2.6.27-std-def-alt3 #1 SMP Tue Nov 25 17:05:26 UTC 2008 i686 GNU/Linux

Ну и соответственно:
# hdparm -d1 /dev/hde

/dev/hde:
  setting using_dma to 1 (on)
  HDIO_SET_DMA failed: Operation not permitted
  using_dma     =  0 (off)