georgethei
New Around Here
Hello all,
I need some advice on what processor i should choose for a nas .
My main concern is that the processor will be most of the time in idle state. So power efficiency in this state is quite important.
But i also need it to be able to cope with zfs or btrfs on an aes encrypted drive (see *1) and at the same time handle the reencryption of the decrypted data before sneding it over the internet or lan. 10-20 MB/s is vrey good.
The candidates for this nasbox are(*2)
celeron d820- can't find much about this one
celeron g550- http://tweakers.net/productreview/67505/intel-celeron-g550-boxed.html it seems to do well enough in truecrypt. Assuming truecrypt will only get 66% of cpu bandwidth 132MB/s sounds great maybe a little to much even. In idle it chomps 32-35W.
celeron g1610- in specs it's pretty much the same as the g550 only with better power consumption (can't find benchmarks)
atom d525 – 67 MB/s in 100% load so if truecrypt receives only 66% cpu that's about 40MB/s. Not too bad i think and 35 W in idle http://www.tomshardware.com/reviews/pinetrail-atom-d525-nc98-525-lf,2716-7.html
atom d2550 – can't find proper benchmarks
amd e350 – it manages up to 45 MB/s in truecrypt but there is somthing odd, the intel d525 is worse so it might be a bottleneck?... http://techreport.com/review/20401/amd-e-350-fusion-apu-on-the-desktop/7 ( i would go for a 450 board but the only one i can find is much more expensive than my budget ). Just found another bencmark : http://www.pctreiber.net/2011/asrock-e350m1.html/6 scroll down to truecrypt benchmark . And the e350 also has a more powerful gpu than the d525 so gpu aided acceleration would be great ( just take a look at the crypto session here : http://www.sisoftware.net/?d=qa&f=cpu_amd_brazos&l=en&a= )
*1 I will use initially 2x1TB WD10EZEX, which will be turned on for about 1h a day and spinned up about 3-4 times a day( Just so we're clear the nas is supposed to be on 24/7 but with storage turned off). I intend to use zfs mirror raid - dont know the proper name - for these two. Next year i intend to add another 1TB drive and switch to raid5 in zfs mode.I will also use 2x8gb plain usb flash , not necesarily using zfs, but they will be striped. And backed up on a daily basis to the hdd partion/zfspool. Oh, and i will also have to use samba too
*2 if you have any configuration with the above cpus please also post a truecrypt benchmark result for aes please.
I'm open to alternatives and I would especially like to hear about any arm-based diy NASes out there. I would have given raspberry pi a try but word is up that 512MB ramis not enough for zfs ( a cluster of 3 rpi would be cool but i'm not sure about the power consumption ).
BTW my budget for the controller component of the nas (cpu+ mobo+ ram) is 105EUR
Regards
I need some advice on what processor i should choose for a nas .
My main concern is that the processor will be most of the time in idle state. So power efficiency in this state is quite important.
But i also need it to be able to cope with zfs or btrfs on an aes encrypted drive (see *1) and at the same time handle the reencryption of the decrypted data before sneding it over the internet or lan. 10-20 MB/s is vrey good.
The candidates for this nasbox are(*2)
celeron d820- can't find much about this one
celeron g550- http://tweakers.net/productreview/67505/intel-celeron-g550-boxed.html it seems to do well enough in truecrypt. Assuming truecrypt will only get 66% of cpu bandwidth 132MB/s sounds great maybe a little to much even. In idle it chomps 32-35W.
celeron g1610- in specs it's pretty much the same as the g550 only with better power consumption (can't find benchmarks)
atom d525 – 67 MB/s in 100% load so if truecrypt receives only 66% cpu that's about 40MB/s. Not too bad i think and 35 W in idle http://www.tomshardware.com/reviews/pinetrail-atom-d525-nc98-525-lf,2716-7.html
atom d2550 – can't find proper benchmarks
amd e350 – it manages up to 45 MB/s in truecrypt but there is somthing odd, the intel d525 is worse so it might be a bottleneck?... http://techreport.com/review/20401/amd-e-350-fusion-apu-on-the-desktop/7 ( i would go for a 450 board but the only one i can find is much more expensive than my budget ). Just found another bencmark : http://www.pctreiber.net/2011/asrock-e350m1.html/6 scroll down to truecrypt benchmark . And the e350 also has a more powerful gpu than the d525 so gpu aided acceleration would be great ( just take a look at the crypto session here : http://www.sisoftware.net/?d=qa&f=cpu_amd_brazos&l=en&a= )
*1 I will use initially 2x1TB WD10EZEX, which will be turned on for about 1h a day and spinned up about 3-4 times a day( Just so we're clear the nas is supposed to be on 24/7 but with storage turned off). I intend to use zfs mirror raid - dont know the proper name - for these two. Next year i intend to add another 1TB drive and switch to raid5 in zfs mode.I will also use 2x8gb plain usb flash , not necesarily using zfs, but they will be striped. And backed up on a daily basis to the hdd partion/zfspool. Oh, and i will also have to use samba too
*2 if you have any configuration with the above cpus please also post a truecrypt benchmark result for aes please.
I'm open to alternatives and I would especially like to hear about any arm-based diy NASes out there. I would have given raspberry pi a try but word is up that 512MB ramis not enough for zfs ( a cluster of 3 rpi would be cool but i'm not sure about the power consumption ).
BTW my budget for the controller component of the nas (cpu+ mobo+ ram) is 105EUR
Regards
Last edited:
). I need about 8-10MB/s between my office and my home and i don't think it will be the case . If i do take the nas home than maybe it might be the case. But my transcoding is not my main concern .
