Sorry, missed the second half of your question... On Apr 07, 2003 10:25 +0100, Alex Bligh wrote: > And once I have htree in the kernel, does it 'automatically' produce the > benefits on existing directories, or do I need to go through some on-disk > process to get the directory held 'in htree form'? I believe I just need to > tune2fs and switch dir_index on. But to get the performance increase, do I > need to make it go and index all those large directories (somehow?). Or > does it do that automatically? To activate htree at all, you need "tune2fs -O dir_index <dev>", and then if you want existing directories to be indexed (instead of only new ones) you need to do "e2fsck -fD <dev>" on an unmounted filesystem. > And if it all goes wrong, can my filesystem still be read by ext2, or ext3 > without the directory index patch? I /think/ the answer is yes, provided it > has the back-compatibility patch in? (and might be 'yes' on other occasions > too). Yes you can use it with older ext2/3 in pretty much all cases. Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/ _______________________________________________ Ext3-users@redhat.com https://listman.redhat.com/mailman/listinfo/ext3-users