very helpful, thanks!
On Aug 30, 2007, at 6:38 AM, Michael Paoli wrote:
Well, treat replacing the sf-lug.com box as an "upgrade".
... basically all the data stays the same - or as same as feasible, or at *least* fully back up all the data and metadata, so all the applicable desired functionality and data can be restored and put back in place as soon as feasible.
May also be quite desirable to tweak the filesystem configuration and mirroring a bit when doing the "upgrade" ... most notably, I know there's been desire to set up the disk mirroring to be quite symetrical - at present I don't think it's quite as symetrical as desired. Some of the filesystem heirarchy should also be split a bit more into separate filesystems, ... most notably I'd strongly recommend /usr and /var be separate filesystems. I'd also recommend /tmp be tmpfs. Among the metadata, also gather size and sizing information (e.g. du -sx /var; du -sx /usr; sfdisk -uS -l; sfdisk -uS -d).
references/excerpts:
$ hostname; df -k /var /usr; mount | awk '{if($3=="/tmp")print;}' sf-lug Filesystem 1K-blocks Used Available Use% Mounted on /dev/md0 9612516 3323336 5800888 37% / /dev/md0 9612516 3323336 5800888 37% / /dev/hda9 on /tmp type ext3 (rw) $
Quoting jim stockford jim@well.com:
it looks like we're getting a replacement box,which means revisiting box issues, notably hostname and the install-configs of the various apps on the box (notably postfix and apache). comments and opinions are welcome.