RAIDZ1 pool with 2GB RAM?

Hello there,

I recently built a FreeNAS server using the following components:

AMD Phenom X3 (triple-core) 8650 CPU (2.3 GHz)
Corsair XMS2 TWIN2X2048-6400 2GB 2X1GB PC2-6400 DDR2-800
MSI K9N6PGM2-V2 AM2+ GeForce 6150SE NFORCE430 mATX Motherboard

I am now wanting to use three 1TB Hitachi Hard drives to create a RAIDZ1 pool.

Should I upgrade the RAM to 4GB or will 2GB suffice for now?
 
For some time I used 1GB RAM (on amd64) for mirror ZFS (2 x 2TB) and it worked very good (100% stable and generally fast), so 2GB RAM will be ok, 4GB would be better, 8GB even more better, but we can always say that ;)

... also for the future, better buy 4 GB of slower NONAME RAM, then 2 GB of ultrafast ${some_nice_brand_here}.
 
The funny thing is the 2GB I got was on sale for cheap...but I should have gotten the 4GB which was only 30 dollars more.

Oh well..thanks again.

CPU is ok as well?
 
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