cmirra

Cubietruck+ (H8) and CT Raid Subboard 1x Samsung EVO 750 256GB SSD 1x Corsair Force 120GB SSD Disks contain ~1GB of previous test data in Raid1 Mode (120GB array). CT Raid Subboard is connected to CT+ via SATA connector. Subboard also offers USB3 data connection. I would test with additional Raid Modes but this board requires soldering tiny surface mount resistors to change modes. Raid 1 is what I need for my application so I won't be able to test Raid0, JBOD, or PM modes for a while. I'd expect all the IO is terrible, thanks to the Cubietruck+. Command line used: iozone -e -I -a -s 1M -r 1k -r 2k -r 4k -i 0 -i 1 -i 2 KB reclen write rewrite read reread read write 1024 1 1644 1997 7363 7732 7008 2004 1024 2 2727 3359 12774 13928 12051 3345 1024 4 4565 5268 23506 26897 20566 5257 Command line used: iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2 KB reclen write rewrite read reread read write 102400 4 6156 6876 25990 26144 25722 6284 102400 16 10489 11175 58778 58498 57430 10719 102400 512 12853 13055 86507 87503 86036 12977 102400 1024 12916 14186 78472 85506 85974 12914 102400 16384 12949 14395 94904 99168 97182 13241 Command line used: iozone -a -g 4000m -s 4000m -i 0 -i 1 -r 4K -r 1024K KB reclen write rewrite read reread 4096000 4 5765 7425 30598 29413 4096000 1024 This last one took so long I had to terminate it. Got things to do Via usb2 on Windows10, I got writes of ~40MB/s (according to explorer). Will properly test with Windows10 + SATA3/USB3 later -- but I think the moral of the story is the CubieTruck+'s SATA->USB bridge is as bad as you heard. Via USB3 on Windows10 Got the same results for 50MB, 1GB, and 4GB tests. I feel like these 4k results may not be so great, but I don't have benchmarks without the RAID board to crosscheck. Maybe later.

CT+ Raid board just arrived in mail yesterday, so I spent a few hours last night with it to try to get your stats. Unfortunately, I was unable to make it work with any of their images -- and I couldn't get their toolchain working properly (even in a 12.02 64 vm as recommended), even after a few tries. I'll likely try it on the OPi PC hardware tonight to verify it works if possible, then hammer away on my CT+ paperweight again I spoke with support about the board a week or so ago (before I ordered it) and was told it will also work with any computer via usb as well, but I couldn't get my desktop to detect any change in USB devices or raid controllers. Not even a usb sound, but I suspect it may only work via usb/pc in some, but not all of it's modes. Speaking of the raid modes the board supports -- FYI: Modes are not configurable by software, or even jumper -- but by soldering resistors to fairly tiny points on the board. At the moment, I wouldn't recommend this to anyone. Still looking at the clearfog pro for my application, will let you guys know when/if I pull the trigger. In the meantime, I'm still open for suggestions, though I'm mostly happy with the pricepoint on clearfog. You get what you pay for and it's not much more expensive than these 'toy' boards we play with. @hojnikb -- Thanks for the suggestion. Will check it out. Update: Posted stats to the above mentioned thread.

Here are of the results of using g_mass_storage module on jessie w/orangepi pc hardware. Data is coming from OTG and being written to usb3 drive (on usb2.0 bus) without encryption or raid. 'top' shows that im only using 1-2% of the cpu, so I'd imagine I have room for decryption and raid overhead. Going to rebuild the kernel a few more times over the next week and try to increase the speed. Not sure where the bottleneck is but I know there are lots of usb modes/flags that I'm not modifying yet. I'm running full desktop version of debian, my next step will be scaling down to just the console version next. For anyone reading this down the road, I had lots of issues getting g_mass_storage to work. Turned out adding "stall=0" to the modprobe string (as mentioned in other posts) made it run just fine.

Very nice project. I am also working on something similar. Looking forward to seeing more of your sourcecode released. Very impressed with how much you stripped the kernel down -- the device (orange pi pc) boots very fast.

Thanks a ton for the info. Not just here, but everywhere. Doing homework on all this for the last few weeks and your posts in particular came up often. What kind of transfer speeds would be safe to expect with the setup you've suggested? Would there be a huge difference between doing this on an H3 and an A20? A20 seems to have tons more support at the moment. I'm shooting for 35-60MB/s if possible. I'll start looking at the Orange Pi as its price point is a lot easier to play with than the clearfog.

Hi All, Which SOC gives best performance today for SATA I/O? According to the Sunxi wiki: http://linux-sunxi.org/Sunxi_devices_as_NAS "Since not every A20 based sunxi device uses GMAC networking (or even Ethernet at all) the following devices are the best choices: A20-OLinuXino-Lime2, Banana Pi, Banana Pro or Banana Pi M1+, Cubietruck, Hummingbird A20, Lamobo R1, Orange Pi, Orange Pi Mini or pcDuino3 Nano (Lite)." I've actually got a cubietruck+ here (that uses a terrible USB to sata bridge) but it's a terrible choice. Hoping you guys (or tkaiser ) can steer me in the right direction. I could run out and order a banana pro, but I feel like A20 has been around a while and maybe there's something better today? Clearfog is looking nice, but I guess I'd need a pci-e sata card. This isn't 'really' a NAS -- The actual use case is as follows: As you can see, the inbound data will come from an OTG connection running g_mass_storage gadget to appear as usb disk to host pc. This is essentially a raid1 array that is decrypted via gpio keypad, and made available as a usb drive to another system. Hardware accel for the encryption would of course be welcomed. I'll need something that doesn't use a usb->sata bridge, because usb will likely be tied up transfering inbound data -- and even if it wasn't they seem terribly slow. A good support community would of course be nice too -- The H8/a83T just doesn't seem to have it yet. Any input would be appreciated. Thanks all, CMirra