> >It would be a dual xeon mobo + 3ware Escalade card + 4x250Gb (WD) disk,
> Good choice. I assume you mean the 4 port card.
Yes, it is the 4-port one. Maybe, once upon a time when I get more funded,
I will get 8-port card(s).
> I would suggest using Raid 10 ( size = n/2) if you have have a enviroment
> with heavy writes. If you won't write to the fs too much and it's mostly
> reads you could use raid 5 (size = n-1).
The read/write is approx equal, maybe 'read' a little bit more. (I wonder,
in long-term, how could I 'measure' this).
> If it's a production server I tend to waste money and opt for the raid 10
> option instead since it's so much faster for database workloads and write
It is a data-cruncher. Reads in 8-16Mb astronomical images, measures
5Bsources, writes out few Mb output, and several small files (logs).
Thanks for all the advice on RAID-5 vs. RAID-10!
> If it's 60TB I don't think it's a single filesytem under linux. The current
> limit is 2TB per device. AFAIK this is fixed in the upcoming 2.6
Great... time will come soon when I hve to migrate.