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On Thursday 18 February 2010 14:33:38 James wrote: |
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> Hello, |
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> |
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> |
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> hdparm -i /dev/hda |
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> |
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> Model=IBM-DJNA-371350, FwRev=J76OA30K, SerialNo=GM0GMGB6505 |
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> Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } |
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> RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34 |
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> BuffType=DualPortCache, BuffSize=1966kB, MaxMultSect=16, MultSect=16 |
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> CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=26520480 |
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> IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} |
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> PIO modes: pio0 pio1 pio2 pio3 pio4 |
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> DMA modes: mdma0 mdma1 mdma2 |
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> UDMA modes: udma0 udma1 *udma2 udma3 udma4 |
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> AdvancedPM=no WriteCache=enabled |
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> Drive conforms to: ATA/ATAPI-4 T13 1153D revision 17: ATA/ATAPI-1,2,3,4 |
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> |
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> * signifies the current active mode |
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> |
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> |
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> Should I put the drive into udma4 mode? |
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> |
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> If so, wouldn't I use: |
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> |
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> hdparm -d 1 -X 68 /dev/hda |
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According to the hitachi manual (who made this drive for IBM) the DJNA-3XXXXX |
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series has a Ultra ATA Mode 2 (33.3 MB per second) capability. So the kernel |
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is not lying in this case and you can trust hdparm in what it shows. I |
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suggest you leave alone. |
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-- |
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Regards, |
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Mick |
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