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Old 02-20-2004, 01:43 AM   #1
Registered: Sep 2003
Location: Kansas
Distribution: Mandrake 9.2
Posts: 58

Rep: Reputation: 15
How do I make my hdparm settings permanent?

I got my hdparm settings where I want them I think..... How do I make them permanent so I don't lose them after a boot? Also if there are any tips to squeeze out a better transfer rate I am all ears.



Model=Maxtor 6Y080L0, FwRev=YAR41BW0, SerialNo=Y27Y9SJE
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=160086528
IORDY=on/off, tPIO={min:120,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 *udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: (null):

* signifies the current active mode

ATA device, with non-removable media
Model Number: Maxtor 6Y080L0
Serial Number: Y27Y9SJE
Firmware Revision: YAR41BW0
Supported: 7 6 5 4
Likely used: 7
Logical max current
cylinders 16383 4047
heads 16 16
sectors/track 63 255
CHS current addressable sectors: 16511760
LBA user addressable sectors: 160086528
device size with M = 1024*1024: 78167 MBytes
device size with M = 1000*1000: 81964 MBytes (81 GB)
LBA, IORDY(can be disabled)
Queue depth: 1
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 (0x0000)
Recommended acoustic management value: 192, current value: 254
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
Enabled Supported:
* NOP cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
SMART feature set
* Mandatory FLUSH CACHE command
* Device Configuration Overlay feature set
* Automatic Acoustic Management feature set
SET MAX security extension
Advanced Power Management feature set
* SMART self-test
* SMART error logging
Master password revision code = 65534
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

hdparm -tT /dev/hda

Timing buffer-cache reads: 660 MB in 2.00 seconds = 330.00 MB/sec
Timing buffered disk reads: 138 MB in 3.01 seconds = 45.85 MB/sec
Old 02-20-2004, 02:25 AM   #2
Senior Member
Registered: Nov 2002
Location: Birmingham UK
Distribution: Various
Posts: 1,736

Rep: Reputation: 146Reputation: 146

as root, edit the /etc/rc.local file
add the following lines to it

hdparm -d1 -c1 -k1 /dev/hda
repeat for cd's (hdc/hdd etc)

-d1 turns dma on
-c1 turns 32bit support on
-k1 says "keep changes even after drive reset"
Old 11-17-2006, 01:44 PM   #3
LQ Newbie
Registered: Nov 2006
Location: Sonoran desert
Distribution: SUSE 10.1
Posts: 24

Rep: Reputation: 15
As a follow up, thank you as this was what I was looking for to lock in dma on a Plextor 760 DVD burner and that in SUSE 10.1 "The scripts for controlling the system are placed in /etc/init.d/ (they have been moved according to the Linux Standard Base (LSB) specifica-
tion).-- this from the rcd.read_me"

So look there for the rc script.

Last edited by sparkbot; 11-17-2006 at 01:50 PM.


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