NAS for recording DVB-S2
Hi,
I want my NAS to record from USB DVB-S2.
It will be a Netgear ReadyNAS 102 or 104.
It has got an ARM HL cpu, so do the DVB drivers in general work on ARM systems?
I compared prices and supported devices list.
The result is:
I should buy either a Tevii S660 or a Terratec Cynergy S2 Stick.
I don't want to have another power supply, so I am going to "steal" the power from the nas somehow.
The Tevii uses 7,5 V which is odd...
I cannot find the voltage the Terratec requires. Does anyone own one?
Is Terratec a good choice regarding drivers?
I am going to compile the kernel myself because no builds are available for the ReadyNAS.
There is a guy who already put the patches for the ReadyNAS DuoV2 upstream into kernel 3.10: http://natisbad.org/
Currently he is working on the 102/104...
unlike me, HE knows what he is doing ;)
thanks,
Jan
Hi,
Am 22.10.2013 10:24, schrieb JPT:
Quoted 8 lines
I want my NAS to record from USB DVB-S2.
[...]
I should buy either a Tevii S660 or a Terratec Cynergy S2 Stick.I don't want to have another power supply, so I am going to "steal" the power from the nas somehow.
The Tevii uses 7,5 V which is odd...
I cannot find the voltage the Terratec requires. Does anyone own one?
Yesterday I recommended the Technisat SkyStar USB HD to s.o. else on this list. Though I'm not beeing employed by or affiliated with Technisat, you might also want to consider it:
http://www.linuxtv.org/wiki/index.php/Technisat_SkyStar_USB_HD
The driver is in mainline kernel (no patching' around), should work well with ARM (If you want me to test it, I could. There are several ARM-boards (armv6j-hf, armv7-hf) floating around here, I just didn't yet bother to try).
The power-supply reads 12V, 1.5A for one device. As you didn't state at what voltage your NAS runs at, it might just fit or be too high (the 12 Volts) for your application. I have a slightly larger NAS (more a less a full blown PC with low-enery components) and I power two of the technisat's off the PC's power supply's 12V rail.
And about the price: it looks like that one is even cheaper than the two you proposed.
Best regards,
Jannis
2013/10/25 Jannis <[email protected]>:
Quoted 21 lines
Hi,
Am 22.10.2013 10:24, schrieb JPT:
Quoted 8 lines
I want my NAS to record from USB DVB-S2.
[...]
I should buy either a Tevii S660 or a Terratec Cynergy S2 Stick.I don't want to have another power supply, so I am going to "steal" the power from the nas somehow.
The Tevii uses 7,5 V which is odd...
I cannot find the voltage the Terratec requires. Does anyone own one?Yesterday I recommended the Technisat SkyStar USB HD to s.o. else on this list. Though I'm not beeing employed by or affiliated with Technisat, you might also want to consider it:
http://www.linuxtv.org/wiki/index.php/Technisat_SkyStar_USB_HD
The driver is in mainline kernel (no patching' around), should work well with ARM (If you want me to test it, I could. There are several ARM-boards (armv6j-hf, armv7-hf) floating around here, I just didn't yet bother to try).
Quoted 1 line
From linux perspective, the ARM architecture is very stable. At least
I have never had any problem running anything on linux-arm devices. For you solution you have to check if USB subsystem on your device is working stable enough, especially if you are sharing the same USB bus with other speedy devices (like external hard drive or so).
/Honza
Am 25.10.2013 09:46, schrieb Honza Petrouš:
Quoted 21 lines
2013/10/25 Jannis <[email protected]>:
Quoted 20 lines
Hi,
Am 22.10.2013 10:24, schrieb JPT:
Quoted 8 lines
I want my NAS to record from USB DVB-S2.
[...]
I should buy either a Tevii S660 or a Terratec Cynergy S2 Stick.I don't want to have another power supply, so I am going to "steal" the power from the nas somehow.
The Tevii uses 7,5 V which is odd...
I cannot find the voltage the Terratec requires. Does anyone own one?Yesterday I recommended the Technisat SkyStar USB HD to s.o. else on this list. Though I'm not beeing employed by or affiliated with Technisat, you might also want to consider it:
http://www.linuxtv.org/wiki/index.php/Technisat_SkyStar_USB_HD
The driver is in mainline kernel (no patching' around), should work well with ARM (If you want me to test it, I could. There are several ARM-boards (armv6j-hf, armv7-hf) floating around here, I just didn't yet bother to try).
Thanks, I will give it a try.
This device wasn't listed at my favorite price comparison agent, only the successor "TechniSat SkyStar USB 2 HD CI" (which doesn't work with linux) at nearly double price.
I think I will trust both your statements that it's likeley to work, so it's not necessary to test. Thanks. :)
Quoted 5 lines
Quoted 5 lines
The power-supply reads 12V, 1.5A for one device. As you didn't state at what voltage your NAS runs at, it might just fit or be too high (the 12 Volts) for your application. I have a slightly larger NAS (more a less a full blown PC with low-enery components) and I power two of the technisat's off the PC's power supply's 12V rail.
12 V should be fine. Any device powering hard-drives should offer 12 V somewhere.
Quoted 5 lines
From linux perspective, the ARM architecture is very stable. At least I have never had any problem running anything on linux-arm devices. For you solution you have to check if USB subsystem on your device is working stable enough, especially if you are sharing the same USB bus with other speedy devices (like external hard drive or so).
great, thanks!
I won't have any other devices attached that generate a lot of traffic. I believe USB 2.0 and USB 3.0 busses are separate, so it would be a good solution to use one for DVB and the other for anything else in case problems occur.
Currently there doesn't exist a kernel for the NAS yet, so I cannot test.
regars,
Jan
Am 25.10.2013 11:57, schrieb JPT:
Quoted 2 lines
I think I will trust both your statements that it's likeley to work, so it's not necessary to test. Thanks. :)
Since I'm a curious person, I tried it myself today. The SykStar USB HD works on my hardkernel ODROID-U2 (Cortex-A9 Quad) after I added the driver to the kernel. Furthermore, the parameter "coherent_pool=6M" needed to be added to the kernel's command line since there were kernel errors otherwise. Since then, everything works as expected. Channel scan, SD and HD programs as well as complete MPEG2 transport streams (well, the TS is filtered in software anyways). All tested using gstreamer-1.2 and dvbsrc.
Best regards,
Jannis