Michael, > That's a kernel option if I recall correctly. If standard CentOS kernels have > that enabled, then we have it as well, as BlueOnyx uses the standard CentOS > kernel.
So I have figured out.... dumpe2fs -h /dev/cciss/c0d0p1 | grep "Filesystem features" dumpe2fs 1.39 (29-May-2006) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super .... and what I think that I want to see is; ++++++++++++++++++++++++++++++++++++++++ dumpe2fs 1.41.4 (27-Jan-2009) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file large_file Filesystem can contain files that are greater than 2GB. (Modern kernels set this feature automatically when a file > 2GB is created.) ++++++++++++++++++++++++++++++++++++++++ And then I looked at the 'automatically' bit and thought it worth a try so then I did the following; [root@main home]# dd if=/dev/zero of=file.txt count=2048 bs=1048576 2048+0 records in 2048+0 records out 2147483648 bytes (2.1 GB) copied, 43.5845 seconds, 49.3 MB/s ... so I can make a 2.1gb file, and then I tried to make a 10gb file; [root@main home]# dd if=/dev/zero of=file.txt count=10240 bs=1048576 10240+0 records in 10240+0 records out 10737418240 bytes (11 GB) copied, 574.531 seconds, 18.7 MB/s ... and there is it. But in reality ( from what I can see ) it's 4gb based on http://dev.mysql.com/doc/refman/5.0/en/full-table.html but I will make some tests later today to see what my machine can realistically do. Tony _______________________________________________ Blueonyx mailing list [email protected] http://mail.blueonyx.it/mailman/listinfo/blueonyx
