Saifi Khan wrote:
> On Sun, 4 Nov 2007, Namita Iyer wrote:
>
>
>> This is the expected performance for desktop IDE disks.
>> Try getting the diagnostics for one of the disks (Use 'hdparm -I').
>>
>> Namita
>>
>>
>
> Hi Namita:
>
> i ran two commands,
>
> #hdparm /dev/hda
>
> /dev/hda:
> multcount = 16 (on)
> IO_support = 0 (default 16-bit)
> unmaskirq = 0 (off)
> using_dma = 0 (off)
> keepsettings = 0 (off)
> readonly = 0 (off)
> readahead = 256 (on)
> geometry = 16383/255/63, sectors = 156301488, start = 0
>
>
>
> #hdparm -I /dev/hda
>
> /dev/hda:
>
> ATA device, with non-removable media
> Model Number: ST380011A
> Serial Number: 5JVEMKY8
> Firmware Revision: 8.01
> Standards:
> Used: ATA/ATAPI-6 T13 1410D revision 2
> Supported: 6 5 4
> Configuration:
> Logical max current
> cylinders 16383 65535
> heads 16 1
> sectors/track 63 63
> --
> CHS current addressable sectors: 4128705
> LBA user addressable sectors: 156301488
> LBA48 user addressable sectors: 156301488
> device size with M = 1024*1024: 76319 MBytes
> device size with M = 1000*1000: 80026 MBytes (80 GB)
> Capabilities:
> LBA, IORDY(can be disabled)
> Standby timer values: spec'd by Standard, no device specific minimum
> R/W multiple sector transfer: Max = 16 Current = 16
> Recommended acoustic management value: 128, current value: 0
> DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
> Cycle time: min=120ns recommended=120ns
> PIO: pio0 pio1 pio2 pio3 pio4
> Cycle time: no flow control=240ns IORDY flow control=120ns
>
> Commands/features:
> Enabled Supported:
> * SMART feature set
> Security Mode feature set
> * Power Management feature set
> * Write cache
> * Look-ahead
> * Host Protected Area feature set
> * WRITE_BUFFER command
> * READ_BUFFER command
> * DOWNLOAD_MICROCODE
> SET_MAX security extension
> * 48-bit Address feature set
> * Device Configuration Overlay feature set
> * Mandatory FLUSH_CACHE
> * FLUSH_CACHE_EXT
> * SMART error logging
> * SMART self-test
> * General Purpose Logging feature set
> unknown 84[11]
> unknown 84[12]
> Security:
> Master password revision code = 65534
> supported
> not enabled
> not locked
> not frozen
> not expired: security count
> not supported: enhanced erase
>
> HW reset results:
> CBLID- above Vih
> Device num = 0 determined by the jumper
> Checksum: correct
>
> Hope this helps solve the disk 2 disk copy issue.
>
> I'm particularly worries as this is fairly recent hardware
> and disk 2 disk copy performance should be better than the
> hardware that i purchased two years ago.
>
>
> thanks
> Saifi.
Hi Saifi,
From the output it seems that your hardware does support udma5
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
But for some reason the setting shows DMA turned off.
using_dma = 0 (off)
Try turning it on. (hdparm -d1 /dev/hda)
Namita
