hi,all We experienced a serious raid problem and OST on the RAID corrupted, it could not be mounted. Dmesg showed message as bellow when I tryed to mount it as ldiskfs,
LDISKFS-fs error (device sdd): ldiskfs_check_descriptors: Checksum for group 14208 failed (51136!=40578) LDISKFS-fs: group descriptors corrupted! Then I tryed to repair it using e2fsck but entering a endless loop, e2fsck never stop! And I couldn't mount it as ldiskfs after I sent kill signal to e2fsck. I also tryed some advice found on list, like "tune2fs -O ununit_bg /dev/xxx, then e2fsck", but none could be helpfull. Our lustre version is 1.8.1.1 with e2fsprogs-1.41.10.sun2 Can Mr Andreas Dilger give me some advice? Any help will be greatly appreciated. Thanks! Best Regards
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