sub closepipes () {
close(DUMPOR); close(TEEOR); close(BUFOR); close(FINDOR);
close(DUMPOW); close(TEEOW); close(BUFOW); close(FINDOW);
+ close(GZOR); close(GZOW);
+ close(DDERRR); close(DDERRW);
}
# work out a find option string that will exclude the required files
# For each filesystem to be put on this tape:
for $tf (@fsys) {
printdate();
+ parsefsys();
+
pipe(FINDOR,FINDOW) or die $!;
pipe(DUMPOR,DUMPOW) or die $!;
pipe(TEEOR,TEEOW) or die $!;
+ pipe(TEEOR,TEEOW) or die $!;
+ pipe(BUFOR,BUFOW) or die $!;
+ pipe(DDERRR,DDERRW) or die $!;
+
$bufir='TEEOR';
+ $ddcmd= "dd ibs=$softblocksizebytes obs=$blocksizebytes of=$ntape 2>&1";
- if ($dopt{'gz'} eq 'y') {
- $gz= '3';
- } elsif ($dopt{'gz'} =~ m/^\d$/) {
- $gz= $dopt{'gz'};
- } elsif (defined $dopt{'gz'}) {
- die "$tf bad gz";
- } else {
- $gz= 0;
- }
if ($gz) {
$bufir='GZOR';
pipe(GZOR,GZOW) or die $!;
+ $ddcmd .= " conv=sync";
}
- pipe(BUFOR,BUFOW) or die $!;
- parsefsys();
-
+ nexttapefile("full $prefix:$atf");
+
# We can back up via dump or cpio or zafio
+ $dumpin= '</dev/null';
if ($tm eq 'dump') {
$dumpcmd= "dump 0bfu $softblocksizekb - $atf";
- $dumpin= '</dev/null';
} elsif ($tm eq 'cpio') {
startprocess '</dev/null','>&FINDOW',$rstr."find $atf -xdev -noleaf -print0";
$dumpcmd= "cpio -Hustar -o0C$softblocksizebytes";
# don't use verbose flag as this generates 2MB report emails :->
$dumpcmd = "afio -b $softblocksizebytes -Zo -";
$dumpin = '<&FINDOR';
+ } elsif ($tm eq 'ntfsimage') {
+ $dumpcmd= "ntfsimage -vvf --dirty $dev";
} else {
die "unknown method $tm for $prefix:$atf\n";
}
# to the exit status of all the commands in the pipeline.
# It is roughly equivalent to:
# md5sum <p >>this-md5sums
- # dump <$dumpin | tee p | writebuffer | dd >/dev/null
- startprocess '<p','>>this-md5sums','md5sum';
- startprocess $dumpin,'>&DUMPOW',$rstr.$dumpcmd;
- startprocess '<&DUMPOR','>&TEEOW','tee p';
+ # dump <$dumpin | tee p [| gzip] | writebuffer | dd >/dev/null
+
+ startprocess '<p','>>this-md5sums',"$nice md5sum";
+ startprocess $dumpin,'>&DUMPOW',"$nice ".$rstr.$dumpcmd;
+ startprocess '<&DUMPOR','>&TEEOW',"$nice tee p";
if ($gz) {
- startprocess '<&TEEOR','>&GZOW','gzip -v$gz';
+ startprocess '<&TEEOR','>&GZOW',"$nice gzip -v$gz";
}
- startprocess "<&$bufir",'>&BUFOW','writebuffer';
- startprocess '<&BUFOR','>/dev/null'
- ,"dd ibs=$softblocksizebytes obs=$blocksizebytes of=$ntape";
+ startprocess "<&$bufir",'>&BUFOW',"$nasty writebuffer";
+ startprocess '<&DDERRR','>/dev/null',"$nice tee dderr >&2";
+ startprocess '<&BUFOR','>&DDERRW',"$nasty $ddcmd";
closepipes();
endprocesses();
+
+ open DDERR, "dderr" or die $!;
+ defined(read DDERR,$_,1023) or die $!;
+ close DDERR;
+ m/\n(\d+)\+0 records out\n/ or die ">$dderr< ?";
+ push @tapefilesizes, [ $1, $currenttapefilename ];
+ $totalrecords++;
+ pboth("total blocks written so far: $totalrecords");
}
# The backup should now be complete; verify it
open S,"this-md5sums" or die $!;
for $tf (@fsys) {
printdate();
+ parsefsys();
chomp($orgsum= <S>); $orgsum =~ s/\ +\-?$//;
$orgsum =~ m/^[0-9a-fA-F]{32}$/i or die "orgsum \`$orgsum' ?";
- chomp($csum= `dd if=$ntape ibs=$blocksizebytes | readbuffer | md5sum`);
+ $cmd= "$nasty dd if=$ntape ibs=$blocksizebytes";
+ $cmd .= " | $nasty readbuffer";
+ $cmd .= " | $nice gzip -vd" if $gz;
+ $cmd .= " | $nice md5sum";
+ pboth(" $cmd\n");
+ chomp($csum= `$cmd`);
$csum =~ s/\ +\-?$//;
$orgsum eq $csum or die "MISMATCH $tf $csum $orgsum\n";
print "checksum ok $csum\t$tf\n" or die $!;
setstatus "FAILED during cleanup";
+pboth("summary:");
+foreach $tfs (@tapefilesizes) {
+ pboth(sprintf " %10d blocks for %s\n", $tfs->[0], $tfs->[1]);
+}
+pboth(sprintf " %10d blocks total (of %d bytes) plus TAPEID and headers\n",
+ $totalrecords, $blocksizebytes);
+
# Write to some status files to indicate what the backup system
# ought to do when next invoked.
# reset incremental backup count to 1.