Thread: Does Power Kernel have RAID support? I want to RAID-0 Micro SD and MMC...
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jackburton is offline jackburton
2013-08-19 , 14:13
Posts: 466 | Thanked: 661 times | Joined on Jan 2009
#3
Originally Posted by pablocrossa View Post
AFAIK (and I could be very, VERY, wrong) RAIDing works only with the same device and capacity i.e. a 64gb Plextor with another 64gb Plextor SSD, not a 32GB eMMC and a 16GB mSD (or even 32 for that matter)...
Wrong. RAID works on any block device. Doesn't matter what it is or how it's exposed.

If the kernel does support RAID, then it should be possible. I don't see how a RAID-0 will improve performance across the SD card and MMC.
The RAID performance will be tied to the lowest performing member of the set. If the SD card is slow, expect the RAID to perform slowly as well.

That being said. As a proof of concept, you could dd a few test images, mount them as loop devices, and then RAID them to see if it will work.
 

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