Hi all,
I am thinking of building my first FreeNAS server for home use. I have 6TB of data (mainly video media) which I am thinking in running in a Raid 1 (Mirror) configuration - so 12TB of disks. When I say mirror, I want to be clear it will be a pure Raid 1 (Mirror) with 2x 3TB drives, 2X2TB & 2x 1TB drives forming separate file repositories (I don't feel the need to use Raid 1+0 as I believe it introduces additional risk to me for little benefit).
I have read everywhere that ZFS has high RAM requirements and that it can be CPU intensive. From my reasonable knowledge of PC's though I would have thought that the requirement of the CPU and RAM would be significantly less with a Raid 1 mirror configuration than that of Raid Z1/2/3 as the required processing and checking would require significantly less calculation, however I cant find any posts or discussion related to this? Is this true or am I missing something that ZFS is doing which requires greater RAM / CPU requirements?
I will also want to run SabNZBD, SickBeard, CrashPlan and maybe even Plex. So I guess upping my RAM a bit from the Spec below would be useful, it is the scale of the increase that I am most concerned with. So how much RAM would you guys recommend on such as set-up?
The hardware I am thinking of re-purposing is as follows:
AMD Athlon II X2 265
6GB DDR3
ASUS M4A785TD-V EVO motherboard
SIL 3114 SATA Controller (JBOD Config)
Thanks all,
Jon
I am thinking of building my first FreeNAS server for home use. I have 6TB of data (mainly video media) which I am thinking in running in a Raid 1 (Mirror) configuration - so 12TB of disks. When I say mirror, I want to be clear it will be a pure Raid 1 (Mirror) with 2x 3TB drives, 2X2TB & 2x 1TB drives forming separate file repositories (I don't feel the need to use Raid 1+0 as I believe it introduces additional risk to me for little benefit).
I have read everywhere that ZFS has high RAM requirements and that it can be CPU intensive. From my reasonable knowledge of PC's though I would have thought that the requirement of the CPU and RAM would be significantly less with a Raid 1 mirror configuration than that of Raid Z1/2/3 as the required processing and checking would require significantly less calculation, however I cant find any posts or discussion related to this? Is this true or am I missing something that ZFS is doing which requires greater RAM / CPU requirements?
I will also want to run SabNZBD, SickBeard, CrashPlan and maybe even Plex. So I guess upping my RAM a bit from the Spec below would be useful, it is the scale of the increase that I am most concerned with. So how much RAM would you guys recommend on such as set-up?
The hardware I am thinking of re-purposing is as follows:
AMD Athlon II X2 265
6GB DDR3
ASUS M4A785TD-V EVO motherboard
SIL 3114 SATA Controller (JBOD Config)
Thanks all,
Jon