Does forcing UDMA5 using -X69 help any? I tested both ways but didn't notice

any difference.

Does anyone know of a shell script that will test all the optimal settings? I

build a lot of systems and it's a drag always testing different settings. A 
script that could probe and test a few sets of settings and output the best 
possible settings would be really cool!



> Quoting HvR <[EMAIL PROTECTED]>:
> 
> > here is my set:
> > 
> > 
> > /dev/hda:
> >  Timing buffer-cache reads:   592 MB in  2.00 seconds = 296.00 MB/sec
> >  Timing buffered disk reads:   80 MB in  3.02 seconds =  26.49 MB/sec
> > 
> > /dev/hda:
> >  multcount    = 16 (on)
> >  IO_support   =  3 (32-bit w/sync)
> >  unmaskirq    =  0 (off)
> >  using_dma    =  1 (on)
> >  keepsettings =  0 (off)
> >  readonly     =  0 (off)
> >  readahead    = 16 (on)
> >  geometry     = 9729/255/63, sectors = 156301488, start = 0
> > 
> > /dev/hda:
> > 
> >  Model=IC25N080ATMR04-0, FwRev=MO4OAD0A, SerialNo=MRG401K4C0MEKC
> >  Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
> >  RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
> >  BuffType=DualPortCache, BuffSize=7884kB, MaxMultSect=16, MultSect=16
> >  CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
> >  IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
> >  PIO modes:  pio0 pio1 pio2 pio3 pio4 
> >  DMA modes:  mdma0 mdma1 mdma2 
> >  UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 
> >  AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
> >  Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: 
> > 
> >  * signifies the current active mode
> > 
> > Command i use to set this:
> > 
> > hdparm -d1 -a16 -c3 -A1 -m16 /dev/hda
> > 
> > 
> > On Thu, 2003-10-30 at 06:17, Craig Main wrote:
> > 
> > > Hi all,
> > > 
> > > I have been looking at the speeds of the disks in some of the threads
> > > lately. I noticed that mine is a lot slower than most. I have attached
> > > some info. Is my disk running as optimally as it can or is there some
> > > more tweaking I can do to improve performance?
> > > 
> > > laptop root # hdparm -tT /dev/hda
> > >  
> > > /dev/hda:
> > >  Timing buffer-cache reads:   644 MB in  2.00 seconds = 322.00 MB/sec
> > >  Timing buffered disk reads:   22 MB in  3.25 seconds =   6.77 MB/sec
> > > 
> > > laptop root # hdparm /dev/hda
> > >  
> > > /dev/hda:
> > >  multcount    = 16 (on)
> > >  IO_support   =  1 (32-bit)
> > >  unmaskirq    =  0 (off)
> > >  using_dma    =  0 (off)
> > >  keepsettings =  0 (off)
> > >  readonly     =  0 (off)
> > >  readahead    =  8 (on)
> > >  geometry     = 2432/255/63, sectors = 39070080, start = 0
> > > 
> > > laptop root # hdparm -i /dev/hda
> > >  
> > > /dev/hda:
> > >  
> > >  Model=HITACHI_DK23CA-20, FwRev=00H1A0J1, SerialNo=12N68B
> > >  Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
> > >  RawCHS=16383/16/63, TrkSize=36477, SectSize=579, ECCbytes=4
> > >  BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
> > >  CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=39070080
> > >  IORDY=yes, tPIO={min:400,w/IORDY:120}, tDMA={min:120,rec:120}
> > >  PIO modes:  pio0 pio1 pio2 pio3 pio4
> > >  DMA modes:  sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
> > >  UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5
> > >  AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
> > >  Drive conforms to: ATA/ATAPI-5 T13 1321D revision 3:
> > >  
> > >  * signifies the current active mode
> > > 
> > > What other hdparm flags can I _safely_ use, I don't want to trash my
> > > disk.
> > > 
> > > Thanks and Regards
> > > Craig
> > > 
> > > --
> > > Craig Main
> > > RHCE
> > > ST Solutions
> > > Cell: 082-323-4670
> > > Home Tel: 011-760-1900
> > > AIM: SATuxman; ICQ: 75815570
> > > http://www.stsolutions.co.za
> > > http://www.linuxsa.com
> > > 
> > > 
> > > ____________________________
> > > I can't believe I ate the whole thing. -- Homer Simpson The Front
> > 
> 
> 
> 



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