-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, 21 Aug 2003 19:02:02 +0000 (UTC), Mark Neidorff wrote:
> Since I don't know, I'll ask....what are sparse blocks and Think of sparse blocks (aka "sparse files") as files with holes. Empty [not yet used] parts of a file are not written to disk in the normal way where they would occupy the same space on disk as if loaded fully into memory. Upon reading parts of the file from disk, skipped blocks (the "holes") would be recognized and substituted with zeroes. As a result, it is possible to create huge empty data structures and only the sparse areas, which are filled with values, would occupy space on disk. > why does `ls -l` show 19Mb and du show 56k? du examines the true number of file-system blocks used on disk, whereas ls prints the size of a file it would have when read into memory completely. - -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQE/RWv20iMVcrivHFQRAii9AJ9VPCK5PzMWv416H+ljfmW3RFpQpgCdGHsc erHJcC4A/Robsj+mhfveHUE= =i4Yj -----END PGP SIGNATURE----- -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
