[ale] Best FS to use when doing unclean shutdowns?

Michael B. Trausch fd0man at gmail.com
Mon Jul 11 16:45:34 EDT 2005


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James P. Kinney III wrote:
> 
> Ah, HA! A basic dumb kiosk box.
> 
> Make the basic boot section RO (/, /boot, /bin, /sbin). Make the /var a
> skeleton that gets populated by a rc.local script.
> 
> Put the data collection part on a separate partition. Change the boot
> scripts so it is NOT automatically loaded. Force a file-system auto-
> repair check on every boot before mounting. Use EXT3 (easy to install
> from RedHat and derivatives) or ReiserFS (Mandrake and SUSE) (Debian and
> Slackware come with both). Use hdparm to setup no write buffering on the
> partition. Use a cron job that runs every minute to perform a "sync" to
> keep everything flushed.
> 

Do be careful about using and relying on hdparm, however.  A while back,
LiveJournal got bit because of hardware that would say "We're not write
buffering, honest!" well, lo and behold, their drives were write
buffering.  There was *still* lossage, and they use journalling
filesystems and transactionalized databases.

	- Mike
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