Arthur Dent wrote:

> But 99% of time the server is doing nothing ... expect logging cronjobs to
> /var/log/messages and writing some weather-data to the mysql-database ... i
> think 1 or 2 GB flash storage could cache all files the server needs over
> the day (read and write cache) ...

You could mount the /var/log/ on an USB, more problematic would be the cron
jobs, as you need to mount all the directories where you have the binaries to
be used.


> The disks could go to powersave and start again when data is not in flash or
> the write back cache of the flash is full ... saving energy, noise and
> lifetime of the disks ...

Once in the time I used powersave on some less used hard drives on my server,
but the spinning up of those hard drives made that things halted up, made that
the server felt extremely slow when it had to access those hard drives, made
me to decide to better to use hard drives with low energy usage, these are
usually quiet too.

Powersave mode is something that shortens the lifespan of the hard drive, the
best life span you get to have those stay slightly hot, according to Google
researches.



--

//Aho