On Fri, 2003-08-29 at 08:55, Mark wrote:
> Wow.. Thanks for the info Byron, looks like it may be difficult to
> install and make the sata drive as the bootable drive.. Although I am
> not sure about this.. are you using the SATA dive as your main drive?
>
> The information about these drives is awfully sketchy at the moment, are
> they worth the trouble.. what sort of through puts are you seeing.. is
> it noticeable difference to the ATA133 stuff?
>
> Cheers
> Mark
>
I'm using the drive as my main drive. It worked off the bat. I've
booted with a gentoo install cd, and also a knoppix live cd, and the
gentoo saw the drive, and the knoppix did not if I recall correctly. I
think the knoppix had like a 2.4.20 kernel where as the gentoo disk had
a 2.4.21 kernel.
Main reason I opted for sata is the cleanliness of the cables, and
efficient airflows. (don't care oabout over clocking but still want a
well cooled case.)
I don't really know how to judge the performance numbers, but here is
what hdparm -tt gives:
hdparm -tT /dev/hde
/dev/hde:
Timing buffer-cache reads: 1564 MB in 2.00 seconds = 782.00 MB/sec
Timing buffered disk reads: 78 MB in 3.04 seconds = 25.66 MB/sec
this is on
2.4.22-1mdk
here are the results from hdparm -I, the drive is a 120 gig seagate
SATA:
hdparm -I /dev/hde
/dev/hde:
ATA device, with non-removable media
Model Number: ST3120026AS
Serial Number: 3JT0JJKQ
Firmware Revision: 3.05
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 2
Supported: 6 5 4 3
Configuration:
Logical max current
cylinders 16383 65535
heads 16 1
sectors/track 63 63
--
CHS current addressable sectors: 4128705
LBA user addressable sectors: 234441648
LBA48 user addressable sectors: 234441648
device size with M = 1024*1024: 114473 MBytes
device size with M = 1000*1000: 120034 MBytes (120 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 4 Queue depth: 1
Standby timer values: spec'd by Standard
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 254, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5
*udma6
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:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
* SMART feature set
* FLUSH CACHE EXT command
* Mandatory FLUSH CACHE command
* Device Configuration Overlay feature set
* 48-bit Address feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
* SMART self-test
* SMART error logging
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
Checksum: correct
thats about all the info I think I can think of now.
-Byron
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