JFFS2 Max Flash Size?

Josh Boyer jwboyer at linux.vnet.ibm.com
Wed Feb 28 16:29:36 EST 2007


On Wed, 2007-02-28 at 13:17 -0800, Johnson, Charles F wrote:
> I've heard there is scalability issues with JFFS2 with large flash
> sizes.   So my question on this list is for a NAND flash design, is
> there a maximum size that JFFS2 can handle ??  4GB, 8GB, ????

4GiB is the maximum that JFFS2 can address given that it uses uint32_t
variables for offsets, etc.

You'll likely hit scaling issues long before that though.  Depending on
various factors, a 1GiB image can be slow.

josh





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