Dear systemd folks, dear Mark (upstream), dear Stephen (Debian),
before going further about this what is your recommended way to deal with hdparm setting up options for block devices? Arch Linux does not seem to ship any init.d scripts/service files for hdparm [1][2] and Fedora does not either [3]. The Debian package of hdparm [4] ships an init.d script [5] which reads values from a config file and tunes the devices appropriately, which I all attached from version 9.39-1. Besides that drives should be set up „optimally“ in the first place by the Linux kernel, how should users be able to set up there drives? Thanks, Paul [1] https://github.com/falconindy/systemd-arch-units/tree/master/service [2] https://projects.archlinux.org/svntogit/packages.git/tree/hdparm [3] http://pkgs.fedoraproject.org/gitweb/?p=hdparm.git;a=tree [4] http://packages.debian.org/sid/hdparm [5] http://packages.debian.org/sid/amd64/hdparm/filelist
# To set the same options for a block of harddisks, do so with something # like the following example options: # harddisks="/dev/hda /dev/hdb" # hdparm_opts="-d1 -X66" # This is run before the configuration in hdparm.conf. Do not use # this arrangement if you need modules loaded for your hard disks, # or need udev to create the nodes, or have some other local quirk # These are better addressed with the options in /etc/hdparm.conf # # harddisks="" # hdparm_opts="" # By default, hdparm will refuse to set harddisk options on any drive # if the system has software RAID running, and one or more disk arrays # are in the process of resynchronisation. # With this variable set to 'yes', /etc/init.d/hdparm will suspend the # RAID resynchronisation process before setting harddisk options, and # will resume it after setting is done. RAID_WORKAROUND=no
hdparm
Description: application/shellscript
## 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. Please read /usr/share/doc/hdparm/README.Debian for
## notes about known issues, especially if you have an MD array.
##
## Note that if the init script causes boot problems, you can pass 'nohdparm'
## on the kernel command line, and the script will not be run.
##
## Uncommenting the options below will cause them to be added to the DEFAULT
## string which is prepended to options listed in the blocks below.
##
## If an option is listed twice, the second instance replaces the first.
##
## /sbin/hdparm is not run unless a block of the form:
## DEV {
## option
## option
## ...
## }
## exists. This blocks will cause /sbin/hdparm OPTIONS DEV to be run.
## Where OPTIONS is the concatenation of all options previously defined
## outside of a block and all options defined with in the block.
# -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
# -B apm setting
#apm = 255
# -B apm setting when on battery
#apm_battery = 127
# -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
# -k disable/enable the "keep_settings_over_reset" flag for this drive
#keep_settings_over_reset = off
# -K disable/enable the drive's "keep_features_over_reset" flag
#keep_features_over_reset = on
# -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 Turn on/off power on in standby mode
# poweron_standby = 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
# -p Set the chipset PIO mode
# chipset_pio_mode
# --security-freeze Freeze the drive's security status
# security_freeze
# --security-unlock Unlock the drive's security
# security_unlock = PWD
# --security-set-pass Set security password
# security_pass = password
# --security-disable Disable drive locking
# security_disable
# --user-master Select password to use
# user-master = u
# --security-mode Set the security mode
# security_mode = h
# Root file systems. Please see README.Debian for details
# ROOTFS = /dev/hda
## New note - you can use straight hdparm commands in this config file
## as well - the set up is ugly, but it keeps backwards compatibility
## Additionally, it should be noted that any blocks that begin with
## the keyword 'command_line' are not run until after the root filesystem
## is mounted. This is done to avoid running blocks twice. If you need
## to run hdparm to set parameters for your root disk, please use the
## standard format.
#Samples follow:
#First three are good for devfs systems, fourth one for systems that do
#not use devfs. The fifth example uses straight hdparm command line
#syntax. Any of the blocks that use command line syntax must begin with
#the keyword 'command_line', and no attempt is made to validate syntax.
#It is provided for those more comfortable with hdparm syntax.
#/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 = 0
#}
#/dev/hda {
# mult_sect_io = 16
# write_cache = off
# dma = on
#}
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