I have to break these things down so I can get them into my neanderthal head, so my apologies if this is obvious to everyone already. Is this a reasonable summary of the storage options for EOMA68?
I looked at some old photos and the EOMA-68 page, and I reckon these are the data storage options. By data storage I mean memory, disk space, or - to talk oldskool - any input/output device.
EOMA68 data storage options --- 1. micro-SD card 2. USB flash drive (AKA USB stick, pen drive, external NAND) 3. internal NAND 4. mechanical hard disk 5. Solid State Disk
file transfer speeds -- 1 is the slowest, 5 is the fastest.
If you want to run something that thrashes the storage, like an e-mail server, stick the files on a disk.
data storage capacity -- 1 is the smallest, and 5 the biggest.
Using a micro-SD card is roughly the same as using as a small cloud server - enough space to store the OS, a bunch of applications, and have some left over.
If you want to run something that chomps through storage, like a database server, stick the files on a disk.
sockets for attaching another mass storage device -- USB2 There's a micro-USB socket on one side of the board, and another USB interface via the PCMCIA socket (or whatever you call the big pin connector housing). If you want to connect your Edison Cylinder Phonograph to your EOMA68 card, USB it up first.
SD/MMC beside the USB socket
SATA III via the PCMCIA socket
I just realized I’ve been dropping the hyphen from EOMA-68. Oops.
links -- old photos http://rhombus-tech.net/allwinner_a10/news/ EOMA-68 page http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68
--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Thu, Aug 4, 2016 at 8:23 AM, Nick Hardiman nick@internetmachines.co.uk wrote:
I have to break these things down so I can get them into my neanderthal head, so my apologies if this is obvious to everyone already. Is this a reasonable summary of the storage options for EOMA68?
I looked at some old photos and the EOMA-68 page, and I reckon these are the data storage options. By data storage I mean memory, disk space, or - to talk oldskool - any input/output device.
EOMA68 data storage options
- micro-SD card
- USB flash drive (AKA USB stick, pen drive, external NAND)
- internal NAND
- mechanical hard disk
- Solid State Disk
file transfer speeds
1 is the slowest, 5 is the fastest.
all looks reasonable, although i'd put 1&2 at potentially interchangeable. on the 4.7 kernel i'm seeing 25mbyte/sec sustained (20mbytes/sec sustained on 3.4) out of a sandisk ultra plus (rated at 85mbyte/sec).
pretty frickin quick in other words.
l.
El Thu, Aug 04, 2016 at 08:23:12AM +0100, Nick Hardiman deia:
SATA III via the PCMCIA socket
I thought SATA was removed from the EOMA-68 connector. So if you want to use a SATA SSD or SATA hard disk you need and SATA-USB convertor.
With the current CPU card that'd be USB2 to SATA and with some future EOMA-68 cpu card it might be USB 3.1 to SATA.
But I may have misunderstood, of course.
--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Thu, Aug 4, 2016 at 12:43 PM, Xavi Drudis Ferran xdrudis@tinet.cat wrote:
El Thu, Aug 04, 2016 at 08:23:12AM +0100, Nick Hardiman deia:
SATA III via the PCMCIA socket
I thought SATA was removed from the EOMA-68 connector. So if you want to use a SATA SSD or SATA hard disk you need and SATA-USB convertor.
With the current CPU card that'd be USB2 to SATA and with some future EOMA-68 cpu card it might be USB 3.1 to SATA.
correct.
But I may have misunderstood, of course.
nono sorry for not picking up on it - very busy. thanks xavi
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