Am 23.04.2013 16:44, schrieb Tanstaafl: > Ok, this is the last question I need to answer for myself before > installing a final version of my new virtualized gentoo server... > > I'll be using the following partition layout: > > /boot (ext2), 100M > /swap, 2G > / (ext4), 40G > > then on LVM > > /tmp (ext2), 5G? <- how big? > /var/tmp (ext2), 5G? <- how big?
If this is a production server I wouldn't use ext2. In the case of a crash or reboot, you don't want to loose precious uptime just because of fsck or corrupted file systems. > /var/log (ext4) <- size? should I even have this separate? Doesn't need to be separate but could prevent a runaway process from filling /var just because it is spamming log entries. Could also be achieved with quotas. > /var (xfs), 750G > /snapshots (xfs), 10G? <- for lvm snapshots of /var for backups > > I'm not using a separate /home because there are no system users beyond > my admin user (and the system user accounts)... > > So - first, is 5G way too big for the two /tmp dirs? I have lots of > space, but hate waste > If you worry about waste consider bind-mounting both from the same partition and install quotas to avoid one filling up the other. A bit like poor-man's btrfs sub volumes. Since you are using LVM you should also keep some unallocated memory, start with smaller partitions and monitor usage. A cron job that looks at `df` and sends a mail when a partition is more than x% full helps a lot. > This mail server is not all that busy, and the backups only take about > an hour, so I guesstimate that there won't be more than about 100-300MB > of changes at the *extreme* outside of the envelope, so the 10G is most > likely extreme overkill... but I'll know soon enough, and besides, I've > got plenty of disk space to play with. > > One question... I have some MySQL databases running on this system too, > for my userdbs, and on the new server, SOGo (groupware)... > > Is it recommended to incorporate scripts to perform dumps of the dbs, or > is the lvm snapshot reliable enough for backing these up in their raw > state? > Restoring from lvm snapshot is like restoring after a black out or similar crash. Having proper dumps is always a good idea. > Thanks as always for comments/suggestions/criticisms... > Hope this helps, Florian Philipp
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