Many thanks! I will try it this weekend. One additional question:
How much RAM needs the Fossil+Venti Fileserver in total? -Bernd On Thu, 11 Aug 2011 10:11:27 +0200 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
