deduplication of mapped drives
Is it worth it?
I've done some experiments, similar to this thread of 2 yrs ago:
using zfs block level deduplication. Just using the shared drives I had a dedup ration of 1.16% (around a terabyte of data in total). If I added in staff homedrives to the pool the ratio went upto about 1.80%
I can see some advantages:
nearly doubles the amount of disk space available with compression
deduplication over the wire means really fast backups
simple to add new disks to a zfs pool and increase size
self healing filesystem
handy for shared files if google drive== homedrive
and some disadvantages, mostly learning related:
learning freebsd/solaris over linux
different quota system
not getting full benefit from hardware raid5 on SAN (I presented the disks separately to the server so that I'm not causing performance issues by raiding it twice)
disks are cheap anyway, saving 1TB only really saves me a couple of hundred quid.
I keep going around in circles with it. what should I do?