I'm building NAS for my personal use. 3-5 computers as load. Mostly video streaming, upload download of big files 10GB or so(70% of future load), photo editing (20%), office stuff(10%). I'm expecting a big number of files/folders in some folders(1000-5000). I also decided to use this NAS as light duty workstation(for emails, web, news watching) since it will be 24/7 on.
I decided to go with Ubuntu 12.04 64-bit desktop version since server version doesn't have GUI.
I'm going to put at work Adaptec RAID 6805 controller and 24 SAS expander. For start, I'll use 8-3TB HDD in Raid 6 (system will be on separated 64G SSD) with possible future raid expansion.
What will be good filesystem to go with? ext3, ext4, XFS or something different? What gives me the most benefits for my needs?
What about reliability? I read somewhere XFS is not as reliable as ext3, is it myth or reality? Also, what size of blocks should I use on RAID 6 controller?
Please correct me in any statements I did above if wrong. Did I make good choices? I also wanted to mention NAS will mostly work with computers running on Windows OS.
Any input, ideas will be appreciated.