Correction of block estimate.

[dump.git] / dump / dump.8.in

diff --git a/dump/dump.8.in b/dump/dump.8.in
index 38ba0846747dad975eda10313fa4a78e0c23c5b1..52b8713a98ae8ea4f5796af3ce05588aed03bf97 100644 (file)
--- a/dump/dump.8.in
+++ b/dump/dump.8.in
@@ -30,7 +30,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"    $Id: dump.8.in,v 1.18 2000/11/10 13:22:10 stelian Exp $
+.\"    $Id: dump.8.in,v 1.24 2001/03/28 12:59:48 stelian Exp $
 .\"
 .Dd __DATE__
 .Dt DUMP 8
@@ -51,6 +51,7 @@
 .Op Fl L Ar label
 .Op Fl s Ar feet
 .Op Fl T Ar date
+.Op Fl z Ar compression level
 .Ar file-to-dump
 .Nm dump
 .Op Fl W Li \&| Fl w
@@ -111,7 +112,7 @@ copy all files new or modified since the
 last dump of a lower level.
 The default level is 9.
 .It Fl B Ar records
-The number of 1 KB blocks per volume.
+The number of 1 kB blocks per volume.
 This option overrides the end-of-media detection, and calculation 
 of tape size based on length and density.
 .It Fl a
@@ -125,7 +126,7 @@ existing tape, or using a tape drive with hardware compression
 .It Fl b Ar blocksize
 The number of kilobytes per dump record.
 Since the IO system slices all requests into chunks of MAXBSIZE
-(typically 64KB), it is not possible to use a larger blocksize
+(typically 64kB), it is not possible to use a larger blocksize
 without having problems later with
 .Xr restore 8 .
 Therefore
@@ -315,6 +316,15 @@ Is like
 but prints only recognized filesystems in
 .Pa /etc/fstab
 which need to be dumped.
+.It Fl z Ar compression level
+Compress every block to be written on the tape using zlib library. This
+option will work only when dumping to a file or pipe or, when dumping
+to a tape drive, if the tape drive is capable of writing variable 
+length blocks. You will need at least the 0.4b22 version of restore in 
+order to extract compressed tapes. Tapes written using compression will
+not be compatible with the BSD tape format. The (optional) parameter 
+specifies the compression level zlib will use. The default compression
+level is 2.
 .El
 .Pp
 .Nm Dump
@@ -480,17 +490,17 @@ a remote shell program instead.
 .Sh AUTHOR
 The 
 .Nm dump/restore
-backup suit was ported to Linux's Second Extended File System
+backup suite was ported to Linux's Second Extended File System
 by Remy Card <card@Linux.EU.Org>. He maintained the initial versions
 of dump (up and including 0.4b4, released in january 1997).
 .Pp
 Starting with 0.4b5, the new maintainer is Stelian Pop 
 .br
-<pop@cybercable.fr>.
+<pop@noos.fr>.
 .Sh AVAILABILITY
 The
 .Nm dump/restore
-backup suit is available from 
+backup suite is available from 
 .br
 http://dump.sourceforge.net
 .Sh HISTORY