On Mon, 2011-06-20 at 07:22 -0400, Atlant Schmidt wrote: > > As far as I know (and I'm sure the list will correct > me if I'm wrong! ;-) ), neither UBI nor UBIFS nor any > Linux layer provides this routine scrubbing; you have > to code it up yourself, probably by accessing the > device at the UBI (underlying block device/LEB) layer.
UBI will scrub all LEBs with bit-flips once they are read. But if you have bit-flips in an LEB and it is never read, it will never be scrubbed. And erasures of the neighboring PEBs may turn bit-flips into hard errors. To force scrubbing, the easies way is to just read all volumes, like dd if=/dev/ubi0_i of=/dev/null bs=4096 for each i. -- Best Regards, Artem Bityutskiy _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
