Messages in this thread | | | Subject | raid0_map bug and disk corruption | Date | Tue, 12 Oct 1999 10:22:11 -0300 | From | Martin Weinberg <> |
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Over the last month, I have been having trouble with raid0. I am running a dual Xeon with four 32GB Barracudas on a Adaptec 2940U2W. This is 2.2.11 with the development patches from kernel.org/pub/linux/daemons/raid/alpha.
raid0_map bug: hash->zone0==NULL for block 1132810879 Bad md_map in ll_rw_block raid0_map bug: hash->zone0==NULL for block 1132810879 Bad md_map in ll_rw_block
Disk data is corrupted as verified by hex dumps using dd and od; examining the dump, it appears as if blocks are overwritten.
It may be relevant that the raid0 was made with a chuck size of 128 and mke2fs with no -b. I realize that not using a larger block may lead to inefficiencies; if someone can confirm that this is the source of my problems, that would be helpful too.
Otherwise, I don't understand the raid0.c code enough to know what to do (e.g. besides dumping software raid0 in favor or hardware raid) Any suggestions?
--Martin
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Martin Weinberg Phone: (413) 545-3821 Dept. of Physics and Astronomy FAX: (413) 545-2117/0648 530 Graduate Research Tower weinberg@astro.umass.edu University of Massachusetts http://www.astro.umass.edu/~weinberg/ Amherst, MA 01003-4525
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