Hi,
Thanks for the response.
Under Ubuntu (NB the drive was under /dev/sdb under Ubuntu - is this a clue?!?):-
HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device
HDIO_GET_DMA failed: Inappropriate ioctl for device
Under Centos (as /dev/hda):-
Both set to 0, so I tried to set them to 1. -d1 error as inappropriate but -u was allowed to be set. It didn't make much difference to the performance, i.e. up from ~ 2.5MB/Sec to 4MB/Sec.
as a refernence, -I gives...
ATA device, with non-removable media
Model Number: Maxtor 6E040L0
Serial Number: E1L01XLE
Firmware Revision: NAR61590
Standards:
Used: ATA/ATAPI-7 T13 1532D revision 0
Supported: 7 6 5 4
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 78156288
device size with M = 1024*1024: 38162 MBytes
device size with M = 1000*1000: 40016 MBytes (40 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
Advanced power management level: unknown setting (0x00fe)
Recommended acoustic management value: 192, 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=120ns 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_VERIFY command
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
SET_MAX security extension
Automatic Acoustic Management feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by CSEL
Checksum: correct
Thanks,
Ian.
________________________________
From: Alexander Georgiev <alexander.georgiev at gmail.com>
To: CentOS mailing list <centos at centos.org>
Sent: Tuesday, 11 August, 2009 8:57:17
Subject: Re: [CentOS] Slow IDE on GeForce 8200 board
2009/8/11 Ian Murray <murrayie at yahoo.co.uk>:
> In my haste for help, I stupidly hit reply and changed the subject which I
> thought was enough for a new message, not giving much thought for the
> threading, etc. So apologies for the hijack, although I would think it
> fairly obvious that it wasn't deliberate or obvious to me... or a big deal
> really. My mail doesn't thread.
>
> Some further info for those actually interested in helping, I forgot that
> the HD in question had an Ubuntu 8.10 install on it, so I fired that up and
> hdparm -t produced 56MB/Sec. So the issue is either kernel or config.
Check if ultradma and unmasq interrupts flags are set(both under
ubuntu and centos):
hdparm -u -d /dev/hda
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