ttyp1:root@u2 22:55:47/080427(/export)# dd_rescue -h dd_rescue Version 1.14, garloff@suse.de, GNU GPL ($Id: dd_rescue.c,v 1.59 2007/08/26 13:42:44 garloff Exp $) dd_rescue copies data from one file (or block device) to another. USAGE: dd_rescue [options] infile outfile Options: -s ipos start position in input file (default=0), -S opos start position in output file (def=ipos), -b softbs block size for copy operation (def=65536), -B hardbs fallback block size in case of errs (def=512), -e maxerr exit after maxerr errors (def=0=infinite), -m maxxfer maximum amount of data to be transfered (def=0=inf), -y syncfrq frequency of fsync calls on outfile (def=512*softbs), -l logfile name of a file to log errors and summary to (def=""), -o bbfile name of a file to log bad blocks numbers (def=""), -r reverse direction copy (def=forward), -t truncate output file (def=no), -d/D use O_DIRECT for input/output (def=no), -w abort on Write errors (def=no), -a spArse file writing (def=no), -A Always write blocks, zeroed if err (def=no), -i interactive: ask before overwriting data (def=no), -f force: skip some sanity checks (def=no), -p preserve: preserve ownership / perms (def=no), -q quiet operation, -v verbose operation, -V display version and exit, -h display this help and exit. Note: Sizes may be given in units b(=512), k(=1024), M(=1024^2) or G(1024^3) bytes This program is useful to rescue data in case of I/O errors, because it does not necessarily abort or truncate the output. ttyp1:root@u2 DING!/080427(/export)#

ttyp1:root@u2 23:33:04/080427(~)# \ dd_rescue -A -l log-dd_rescue -o log-bad -b 4M /dev/rwd2c /dev/rwd1c dd_rescue: (fatal): allocation of aligned buffer failed!

+#if defined(__DragonFly__) || defined(__NetBSD__)
+#undef O_DIRECT
+#endif
+

ttyp1:root@u2 23:51:36/080427(~)# dd_rescue -A -l log-dd_rescue -o log-bad -f -b 8M /dev/rwd2c /dev/rwd1c dd_rescue: (info): ipos: 434176.0k, opos: 434176.0k, xferd: 434176.0k errs: 0, errxfer: 0.0k, succxfer: 434176.0k +curr.rate: 10457kB/s, avg.rate: 10445kB/s, avg.load: 2.5%