[Lustre-discuss] system disk with external journals for OSTs formatted

Alexander Bugl alexander.bugl at zmaw.de
Wed Oct 27 00:02:09 PDT 2010


Hi!

We now have a full e2fsck -fn log -- probably one of you could give an 
estimation how severe it is what e2fsck says?

> Trying to run e2fsck -n yields:

[root at soss10 ~]# e2fsck -fn /dev/md14
e2fsck 1.41.10.sun2 (24-Feb-2010)
e2fsck: Group descriptors look bad... trying backup blocks...
Error writing block 1 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
Error writing block 2 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
Error writing block 3 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
[... and all integers between]
Error writing block 463 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
Error writing block 464 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no

One or more block group descriptor checksums are invalid.  Fix? no

Group descriptor 0 checksum is invalid.  IGNORED.
Group descriptor 1 checksum is invalid.  IGNORED.
Group descriptor 2 checksum is invalid.  IGNORED.
Group descriptor 3 checksum is invalid.  IGNORED.
[... and all integers between]
Group descriptor 59615 checksum is invalid.  IGNORED.
Group descriptor 59616 checksum is invalid.  IGNORED.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  +(1394212864--1394213377) +(1394245632--1394246145) 
+(1394278400--1394278913) +(1394311168--1394311681) +(1394343936--1394344449)
[... this line is veeeery long ...]
Fix? no

Free blocks count wrong for group #0 (31223, counted=1625).
Fix? no
Free blocks count wrong for group #1 (31229, counted=395).
Fix? no
Free blocks count wrong for group #2 (32254, counted=848).
Fix? no
Free blocks count wrong for group #3 (31229, counted=1998).
Fix? no
[... and many groups between]
Free blocks count wrong for group #59615 (32254, counted=1088).
Fix? no
Free blocks count wrong for group #59616 (27390, counted=26878).
Fix? no
Free blocks count wrong (752943653, counted=753681334).
Fix? no

Inode bitmap differences:  -(8193--8197) -(8200--8201) -(8206--8209) 
-(8211--8217) -(8219--8222) -8224 -(8226--8228) -8231 ...
[... this line is even longer than the Block bitmap differences ...]
Fix? no

Free inodes count wrong for group #0 (8181, counted=8177).
Fix? no
Free inodes count wrong for group #1 (8192, counted=4382).
Fix? no
Free inodes count wrong for group #3 (8192, counted=3602).
Fix? no
[... and many groups more]
Free inodes count wrong for group #7418 (8192, counted=2878).
Fix? no
Free inodes count wrong for group #19795 (8192, counted=8189).
Fix? no

Directories count wrong for group #19795 (0, counted=1).
Fix? no

Free inodes count wrong (488206819, counted=485877645).
Fix? no

squall-OST001d: ***** FILE SYSTEM WAS MODIFIED *****
squall-OST001d: ********** WARNING: Filesystem still has errors **********

squall-OST001d: 175645/488382464 files (25.3% non-contiguous), 
1200581339/1953524992 blocks
Error writing block 1 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
Error writing block 2 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
Error writing block 3 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
[... and all integers between]
Error writing block 463 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no
Error writing block 464 (Attempt to write block from filesystem resulted in 
short write).  Ignore error? no

The full log is 24 MB in size, too big for a mailing list -- it is online 
available at <ftp://ftp.zmaw.de/outgoing/alex/e2fsck-md14.txt>.

Thanks in advance, with regards, Alex

-- 
Alexander Bugl,  Central IT Services, ZMAW
Max  Planck  Institute   for   Meteorology
Bundesstrasse 53, D-20146 Hamburg, Germany
tel +49-40-41173-351, fax -298, room PE048



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