JP Howard wrote: >We've been thinking about something like that, using this extremely nifty >trick: > >http://www.mikerubel.org/computers/rsync_snapshots/ > This is brilliantly simple.
> >Back in the old days (i.e. last week) when we were planning around Ext3, >we were thinking of combining it with this product: > >http://www.shaolinmicro.com/product/cogofs/index.php > This looks reasonable as a product, and not unreasonably expensive for servers. There are some advantages to tight integration though, in that you can compress at flush time. > >The two combined, with ATA RAID, provide fast, redundent, incremental, >compressed backups. > >Does ReiserFS support transparent compression? > This is one of the features that won't make the Halloween deadline, but might be slipped in later. > If not, are there any >plans in this direction? Benchmarks I've seen in the past suggest that >compressed file systems generally improve performance (especially when >using something fast like LZOP) since CPUs are so fast--and of course for >backups being able to store more on fewer disks is nice... > What I had heard was that they generally slowed peformance, but maybe my info is old. CPUs are faster now, and maybe compression algorithms are faster. Can you give more details?
