On Tue, Sep 16, 2014 at 11:11:35PM -0600, Liuhua Wang wrote: > There are error messages: > --------------------- > [22798.077877] end_request: I/O error, dev dasdd, sector 2240 > [22798.077902] device-mapper: raid: Failed to read superblock of device at position 1 > [23087.875420] type=1006 audit(1404313201.346:28): pid=1596 uid=0 old auid=4294967295 new auid=0 old ses=4294967295 new ses=27 res=1 > [23127.707296] dasd-eckd.d2bf98: 0.0.141d: ERP 0000000036ab1e40 has run out of retries and failed > ---------------------- OK, so it sounds like Neil's patch will be enough to fix this. Can you test that and confirm it solves the problem? Alasdair -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel