## This is the default configuration for hdparm for Debian. It is a ## rather simple script, so please follow the following guidelines :) ## Any line that begins with a comment is ignored - add as many as you ## like. Note that an in-line comment is not supported. If a line ## consists of whitespace only (tabs, spaces, carriage return), it will be ## ignored, so you can space control fields as you like. ANYTHING ELSE ## IS PARSED!! This means that lines with stray characters or lines that ## use non # comment characters will be interpreted by the initscript. ## This has probably minor, but potentially serious, side effects for your ## hard drives, so please follow the guidelines. Patches to improve ## flexibilty welcome. # -q be quiet quiet # -a sector count for filesystem read-ahead #read_ahead_sect = 12 # -A disable/enable the IDE drive's read-lookahead feature #lookahead = on # -b bus state #bus = on # -c enable (E)IDE 32-bit I/O support - can be any of 0,1,3 #io32_support = 1 # -d disable/enable the "using_dma" flag for this drive #dma = off # -D enable/disable the on-drive defect management #defect_mana = off # -E cdrom speed #cd_speed = 16 # -m sector count for multiple sector I/O #mult_sect_io = 32 # -P maximum sector count for the drive's internal prefetch mechanism #prefetch_sect = 12 # -r read-only flag for device #read_only = off # -S standby (spindown) timeout for the drive #spindown_time = 24 # -u interrupt-unmask flag for the drive #interrupt_unmask = on # -W Disable/enable the IDE drive's write-caching feature #write_cache = off # -X IDE transfer mode for newer (E)IDE/ATA2 drives #transfer_mode = 34 # -y force to immediately enter the standby mode #standby # -Y force to immediately enter the sleep mode #sleep # -Z Disable the power-saving function of certain Seagate drives #disable_seagate # -M Set the acoustic management properties of a drive #acoustic_management #Samples follow: #/dev/discs/disc0/disc { # mult_sect_io = 16 # write_cache = off # spindown_time = 240 #} #/dev/discs/disc1/disc { # mult_sect_io = 32 # spindown_time = 36 # write_cache = off #} #/dev/cdroms/cdrom0 { # dma = on # interrupt_unmask = on # io32_support = off #} /dev/hda { mult_sect_io = 16 write_cache = on spindown_time = 253 interrupt_unmask = on dma = on acoustic_management = 128 advanced_power_management = 10 }