June 23, 201115 yr ok i am trying to build myself a nas box. i haven't settled on the hardware or os yet. a few questions. 1. have unraid on a flashdrive, machine fully booted etc... what read speeds should i expect (i will be using 8-16 drives) 2. what sort of services does this offer, like smb/cifs, ftp, web-server, rsync target, iscsi, etc? 3. would i get better speeds from cheap(er) host bus adapters like most of highpoint's stuff, versus a raid card with cache etc(with raid off) 4. how is this raid version better than raid5 (under something like freenas)? 5. would this case http://www.supermicro.com/products/chassis/3U/836/SC836E16-R1200.cfm plus a sas card work , ie will it see the drives through the sas backplane? 6. almost the same question, will something like http://usa.chenbro.com/corporatesite/products_detail.php?sku=75 plus a decent sas card work (likely in this case http://www.newegg.com/Product/Product.aspx?Item=N82E16811219031 )? i cannot decide whether i want a 'low-power' nas only box, or something powerful, run esxi, and give the nas os access to the raid card. (i can run freenas like this to share out to the vm+real network)
June 23, 201115 yr Author so it looks like Raj has built/prototyped out several 'ideal' builds. http://lime-technology.com/forum/index.php?topic=7998.0 i am looking at the 22 Drive Beast (rackmount), that is like what i had in mind. Again, once the raid is all setup, what sort of read/write speeds could i expect from this build? will it use both nic's? is there a way in unraid to team or bond the nics to make it 2gbs? and is 650wats really enough? the sumermicro case i looked at comes with a 1200wat ps. plus trying to calculate the wattage, it seems to be over 900 watts. thanks.
June 23, 201115 yr Read speeds are that of a single drive, typically 50 to 80 MB/s. SMBS, ftp (supplied, but no web-based config, you must edit the config file as per your needs) no general purpose web-server, but it has it ow for its management page. You can add your own if there is a need. rsync is supplied, you need to configure s per your needs. no iscsi. does NOT use hardware raid. If you are looking for that, look elsewhere. Better than raid5 in that the disks do not needs to all be the same size, and far easier to grow the array, and each disk is a readable file system as data is not striped across disks. unRAID will not use both NICs. It will use one of them. It will not pair them.(you can put the second on a different subnet though and configure it yourself) You want a power supply with a single high amperage 12 volt rail. 95% of the multi-rail supplies only allocate one rail for the disks and frequently share even that with the motherboard. )The other rails are for video cards, CPU, and PCIe. Most of your questions are answered in the wiki. Joe L.
June 23, 201115 yr Again, once the raid is all setup, what sort of read/write speeds could i expect from this build? 60+ for reads should be possible will it use both nic's? you can set up each nic separately but there is no built in function to unRAID that would allow you to use 2 NIC's is there a way in unraid to team or bond the nics to make it 2gbs? No and is 650wats really enough? If running all green drives yes it would be enough the sumermicro case i looked at comes with a 1200wat ps. plus trying to calculate the wattage, it seems to be over 900 watts. 1200watts is complete overkill and that PSU could possibly be worse then the 650W used in the prototype builds.
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