Portál AbcLinuxu, 8. listopadu 2025 22:58
man hdparm
man hdparm /sleep
-C Check the current IDE power mode status, which will always be
one of unknown (drive does not support this command),
active/idle (normal operation), standby (low power mode, drive
has spun down), or sleeping (lowest power mode, drive is com-
pletely shut down). The -S, -y, -Y, and -Z flags can be used to
manipulate the IDE power modes.
-S Set the standby (spindown) timeout for the drive. This value is
used by the drive to determine how long to wait (with no disk
activity) before turning off the spindle motor to save power.
Under such circumstances, the drive may take as long as 30 sec-
onds to respond to a subsequent disk access, though most drives
are much quicker. The encoding of the timeout value is somewhat
peculiar. A value of zero means "timeouts are disabled": the
device will not automatically enter standby mode. Values from 1
to 240 specify multiples of 5 seconds, yielding timeouts from 5
seconds to 20 minutes. Values from 241 to 251 specify from 1 to
11 units of 30 minutes, yielding timeouts from 30 minutes to 5.5
hours. A value of 252 signifies a timeout of 21 minutes. A
value of 253 sets a vendor-defined timeout period between 8 and
12 hours, and the value 254 is reserved. 255 is interpreted as
21 minutes plus 15 seconds. Note that some older drives may
have very different interpretations of these values.
-y Force an IDE drive to immediately enter the low power consump-
tion standby mode, usually causing it to spin down. The current
power mode status can be checked using the -C flag.
-Y Force an IDE drive to immediately enter the lowest power con-
sumption sleep mode, causing it to shut down completely. A hard
or soft reset is required before the drive can be accessed again
(the Linux IDE driver will automatically handle issuing a reset
if/when needed). The current power mode status can be checked
using the -C flag.
Vypnout syslog atd.....
Jinak asi tak udělat ramdisk přesunout věci které musí být přístupné do ramdisku odpojit disk (umount) a uspát ho
Na router bych spíš použil něco jako Devil Linux, pak nebudeš potřebovat disk vůbec (spouští se z CD, konfiguraci ukládá na disketu), ono totiž diskům časté roztáčení/zastavování nedělá dobře – a do logů, do /tmp apod. se zapisuje celkem často.
Pokud je to jen malý router pro domácí síť, možná bude úplně nejlepší koupit router hotový (je to malá krabička, vetš. to obsahuje router, switch, DHCP, NAT, jednoduchý firewall...), oproti počítači to celkem nic nežere, konfigurace je jednoduchá… Samozřejmě to má i své nevýhody – nedá se na tom rozeběhnout ssh, mailserver, irc atd.
Tiskni
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