File System Corruption teste
Richard B. Johnson (root@analogic.com)
Tue, 11 Mar 1997 18:52:50 -0500 (EST)
File system corruption tests continued with new operating system:
This is an ext2 file system on Linux version 2.1.29.
Spare disk, 98% full of a file called ZERO, from `cp /dev/zero /mnt/ZERO`
/dev/sdc1 893986 832547 15254 98% /mnt
# ls -la /mnt
total 832548
drwxr-xr-x 3 root root 1024 Mar 11 18:24 ./
drwxr-xr-x 21 root root 1024 Mar 11 18:00 ../
-rw------- 1 root root 849182720 Mar 11 18:29 ZERO
drwxr-xr-x 2 root root 12288 Mar 10 15:27 lost+found/
# cmp -l /mnt/ZERO /dev/zero &> xxx &
# head xxx
94295041 17 0
94295042 17 0
94295043 17 0
94295044 17 0
94295045 17 0
94295046 17 0
94295047 17 0
94295048 17 0
94295049 17 0
94295050 17 0
# tail xxx
94384120 17 0
94384121 17 0
94384122 17 0
94384123 17 0
94384124 17 0
94384125 17 0
94384126 17 0
94384127 17 0
94384128 17 0
cmp: /mnt/ZERO: I/O error # Normal (EOF)
This shows file system corruption starting at byte offset 94295041.
This means that the last good byte was at 94295040. 94295041 / 1024 = 92085.
I don't know what this means. Bet it isn't good, though.
Cheers,
Dick Johnson
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Richard B. Johnson
Project Engineer
Analogic Corporation
Voice : (508) 977-3000 ext. 3754
Fax : (508) 532-6097
Modem : (508) 977-6870
Ftp : ftp@boneserver.analogic.com
Email : rjohnson@analogic.com, johnson@analogic.com
Penguin : Linux version 2.1.29 on an i586 machine (66.15 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.
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