Is it obvious enough from the man pages that this wouldn't be too useful to have on the Plan 9 wiki?
I'm a big believer in the wiki, but not when it pushes one to avoid reading the authoritative documentation of the man pages. Dave On Thu, Aug 11, 2011 at 1:11 AM, David du Colombier <0in...@gmail.com>wrote: > In fact, it's pretty straightforward. > > In the following example, I consider you have a disk sdE0 > with Fossil, and you want to add a disk sdE1 with Venti. > > Create the Venti partitions: > > disk/fdisk -baw /dev/sdE1/data > disk/prep -bw -a^(isect arenas bloom) /dev/sdE1/plan9 > > Format the Venti file systems: > > venti/fmtisect isect /dev/sdE1/isect > venti/fmtarenas arenas /dev/sdE1/arenas > venti/fmtbloom /dev/sdE1/bloom > > Since the bloom filter requires memory equal to its size > on disk, you could need to pass the parameter -s to fmtbloom > to specify its size or directly adjust the partition size. > Keep in mind that Venti use 20% total memory by default, and > 1/3 of it is allocated to the bloom filter. > For example, with 1 GB of memory, you cannot have a bloom filter > larger than 64 MB (which is sufficient) with the default settings. > Of course, the bloom filter is optional anyway. > > Configure Venti: > > echo 'index main > isect /dev/sdE1/isect > arenas /dev/sdE1/arenas > bloom /dev/sdE1/bloom' | venti/conf -w /dev/sdE1/arenas > > Initialize the index sections: > > venti/fmtindex /dev/sdE1/arenas > > Read your current Fossil configuration: > > fossil/conf /dev/sdE0/fossil > fossil.conf > > Edit fossil.conf, it should look like something like: > > fsys main config /dev/sdE0/fossil > fsys main open -V -c 3000 > > Remove -V to open and srv if needed, then > add the following line to enable automatic > snapshots: > > fsys main snaptime -s 60 -a 0530 -t 2880 > > (snapshot at 05:30, temporary snapshot each > hour and discarded after two days) > > Write your new Fossil configuration: > > fossil/conf -w /dev/sdE0/fossil < fossil.conf > > Mount your 9fat file system, then add the following line > to the file /n/9fat/plan9.ini: > > venti=#S/sdE1/arenas > > After rebooting, the current Fossil content will be dumped > to Venti. > > -- > David du Colombier > >
