December 30, 201312 yr I am migrating my production box to all 4TB drives from all 2 TB drives. I have an Areca 1880 controller, but have not done RAID with data disks since one of the benefits of unRAID is ease of removing disks and accessing the data in the event of a disaster. But I didn't want to trash all the old 2TB drives. Plus I have a need for some large FAST storage for working copies large (500GB) transient files that I need for a few weeks before they are no longer needed. I installed Intel 10GBE cards in unRAID and my workstation, and was able to pump about 350MB/sec RAMDISK to RAMDISK over the wire with SMB2, so I wanted a large cache disk that would match that speed. I decided to use 2x2TB drives for the new RAID0 Parity disk, and 4x2TB to create a 6TB RAID5 cache disk. Since I don't care about removing and getting data off of parity, that's OK, and all the files on cache will be copies of the transient files that I have archive copies of anyway. I can now read and write large files over the wire to/from the cache disk at 300MB/sec... or twice as fast as to a local hard drive on the workstation. .
December 30, 201312 yr Nice speeds. Is this a point-point network connection, or do you have a 10Gb switch as well as the 10Gb adapters? I suspect this network infrastructure is a bit more than most of us are willing to pay for our home networks
December 30, 201312 yr Author Point to point w/ no switch. Here is my prior post on the 10GBE cards and test: http://lime-technology.com/forum/index.php?topic=30881.msg277913#msg277913
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