On 27.11.18 22:28, Rick Moen wrote several juciy tips, including: > (Depending on your system, you probably want to ensure that /var/lib > and /var/spool are served from elsewhere, either separate filesystems > of their own or symlinks to trees elsewhere /like to dirs under /home > or some such.)
I'm still getting my head around the concept of having separate /var and then symlinking /var/spool back into /home. Admittedly, I do in effect something like that for mail, as procmail (invoked directly by postfix) dumps 99.9% of mail to ~/mail/*, so only the smallest residue hits /var/spool/mail/erik . That outlier has been a backup nuisance, which your method obviates. Looking at /var/lib for the first time in three decades, I see the merit of that symlink, at least for backup purposes. > > Growth of /tmp was never a problem, as removal of several day old tmp > > files was/is a standard cronjob, at least after you've been bitten once. > > I actually think tmpfs for /tmp is a fine idea, provided (1) you are > aware of what'll happen if it balloons, and (2) you're OK with it being > backed by volatile storage and aren't surprised by it being empty after > reboots including unplanned ones. The speed gain is serious. > > If nervous about all of /tmp being volatile, you could, e.g., have > subdir /var/volatile only mounted as tmpfs. > > For me, I'm leaning towards all of /tmp being on tmpfs and _no_ swap of > any kind on near-future server systems because of intended use of only > SSDs, no spinning rust at all. I don't have hard data, but suspect that > the wear on SSDs from swap activity is substantial to a degree that > outweighs swap's functional utility -- for my use-case, at least. I > intend to have a go at a style of operation where running out of > physical RAM means the OOM killer gets loose for a while, and see how > that goes. The implicity assumption is 'I'll try to avoid that by > having enough RAM and not running tasks configured so they're likely to > blow up and drive the system into swap.' My metrics say that I haven't > been driving into swap, so it's probably a reasonable stance. Now that is very appealing. It feels like the way things should be. It'll take a while to marshall the round-tuits, but it's now on the to-do list. Many thanks for the insight. Erik _______________________________________________ Dng mailing list [email protected] https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
