EXT3 Users Mailing List

headers jiju peter | 3 Jun 2004 23:34

I am running RHEL3 server connected to a
JBOD using a fiber channel HBA. I mounted
a disk using ext3 file system with -o sync
option on directory /mntb. 

Then I unplugged the fiber channel cable and
did following commands.

echo 1 > /tmp/file1
cp /tmp/file1 /mntb/file
echo $?

The cp command waited for 30 seconds and there
are SCSI and file system error messages on the
console as expected. I am sure that the data
did not reach the fiber channel disk. But the
exit status of cp command is zero.

This is an strace of cp command
====
open("/mntb/file", O_WRONLY|O_TRUNC|O_LARGEFILE) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=2, ...}) = 0
read(3, "2\n", 4096)                    = 2
write(4, "2\n", 2)                      = 2
read(3, "", 4096)                       = 0
close(4)                                = 0
close(3)                                = 0
===========

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