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dsnap-sync: enable remote btrfs-stream to remote tape

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* get_tape_infos()
* run_backup()
* run_finalize()

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>
This commit is contained in:
Ralf Zerres
2018-09-17 10:10:00 +02:00
parent a8c00b6c1a
commit 99b4eb728c
1 changed files with 17 additions and 30 deletions
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47
bin/dsnap-sync
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@@ -598,11 +598,11 @@ get_tape_infos () {
fi
else
# on remote host
if [ "$($ssh findmnt --noheadings --nofsroot --types fuse --output SOURCE --list | awk -F ':' '{$print \$1}')" = "ltfs" ]; then
if [ "$($ssh findmnt --noheadings --nofsroot --types fuse --output SOURCE --list | awk -F ':' '{print $1}')" = "ltfs" ]; then
tape_ids=$($ssh findmnt --noheadings --nofsroot --types fuse --output SOURCE --list \
| awk -F ':' '{print $2}')
tape_targets=$($ssh findmnt --noheadings --nofsroot --types fuse --output TARGET --list \
| awk -F '{print $2}')
| awk '{print $1}')
fs_options=$($ssh findmnt --noheadings --nofsroot --types fuse --output SOURCE,OPTIONS --list \
| awk '{print $2}')
fi
@@ -628,7 +628,7 @@ get_tape_infos () {
y=$(($target_count+1))
i=$y
for tape_id in $tape_ids; do
if [ "$tape_id" = "tapeid_cmdline" ]; then
if [ "$tape_id" = "$tapeid_cmdline" ]; then
if [ ${#tape_id_match} -gt 0 ]; then
tape_id_match="${tape_id_match} $i"
else
@@ -1500,8 +1500,13 @@ run_backup () {
# Can't use btrfs receive, since target filesystem can't support btrfs snapshot feature
snapper_target_stream=${snapper_target_id}_${archive_type}.btrfs
if [ ! -f $snapper_target_snapshot/$snapper_target_stream ]; then
cmd="btrfs send $btrfs_verbose_flag $snapper_source_snapshot 2>$BTRFS_PIPE \
| $cmd_pv $ssh cat >$snapper_target_snapshot/$snapper_target_stream 2>$BTRFS_PIPE"
if [ -z $remote ]; then
cmd="btrfs send $btrfs_verbose_flag $snapper_source_snapshot 2>$BTRFS_PIPE \
| $cmd_pv cat > $snapper_target_snapshot/$snapper_target_stream 2>$BTRFS_PIPE"
else
cmd="btrfs send $btrfs_verbose_flag $snapper_source_snapshot 2>$BTRFS_PIPE \
| $cmd_pv $ssh 'cat > $snapper_target_snapshot/$snapper_target_stream' 2>$BTRFS_PIPE"
fi
else
if [ $verbose -ge 2 ]; then
printf "${RED}BTRFS_Stream: %s${NO_COLOR} already saved.\n" \
@@ -1769,8 +1774,8 @@ run_finalize () {
# update tape attributes
if [ ${#mediapool_name} -gt 1 ] && [ ${#volume_name} -gt 1 ]; then
# read mounted LTFS structures
tape-admin --verbose=$verbose --update-lastwrite ${mediapool_name} ${volume_name}
tape-admin --verbose=$verbose --update-retensiondate ${mediapool_name} ${volume_name}
$ssh tape-admin --verbose=$verbose --update-lastwrite ${mediapool_name} ${volume_name}
$ssh tape-admin --verbose=$verbose --update-retensiondate ${mediapool_name} ${volume_name}
fi
fi
return 0
@@ -2438,10 +2443,9 @@ verify_archive_structure () {
fi
fi
# WIP: this is the idea right now ...
# archive type: full or incremental
# full snyc: regular btrfs send
# incremental: save a btrfs stream. Stream will depend on parent
# full snyc: save a btrfs full-stream
# incremental: save a btrfs incremental-stream. Stream will depend on parent
# restore process:
# 1) copy in last full to btrfs filesystem
# 2) loop though ordered incremental path: "cat <stream> | btrfs recieve"
@@ -2468,23 +2472,6 @@ verify_archive_structure () {
"$backup_root/$snapper_id"
die "Can't create snapshot dir on target."
fi
else
cmd="$ssh stat --format %i $backup_root/$snapper_id/snapshot 2>/dev/null"
ret=$(eval $cmd)
if [ $? -eq 0 ]; then
# a former btrfs archive already exists
if [ -z "$remote" ]; then
printf "${RED}Cancel archive creation${NO_COLOR}: Former snapshot with id ${GREEN}'%s'${NO_COLOR} already exist in ${BLUE}'%s'${NO_COLOR}\n" \
"$snapper_id" "$backup_root"
else
printf "${RED}Cancel archive creation${NO_COLOR}: Former snapshot with id ${GREEN}'%s'${NO_COLOR} already exists on ${BLUE}'%s'${NO_COLOR} in ${BLUE}'%s'${NO_COLOR}\n" \
"$snapper_id" "$remote" "$backup_root/$snapper_snapshots"
fi
# cleanup generated snapper entry
check_snapper_failed_ids $selected_config $batch
die "Can't backup to existing snapshot-id ($snapper_id)!"
fi
fi
else
printf "dryrun: Would check/create path %s to store target snapshot ...\n" \
@@ -2807,17 +2794,17 @@ parse_params $@
# select the target LTFS tape
if [ ${#mediapool_name} -gt 1 ] || [ ${#volume_name} -gt 1 ]; then
# read mounted LTFS structures
tape-admin --verbose=$verbose --mount ${mediapool_name} ${volume_name}
$ssh tape-admin --verbose=$verbose --mount ${mediapool_name} ${volume_name}
if [ $? -eq 0 ]; then
target_cmdline=$ltfs_mountpoint
if [ ${#volume_name} -eq 0 ]; then
#tape-admin --verbose=$verbose --ltfs-getattribute
volume_name=$(attr -g ltfs.volumeName $ltfs_mountpoint)
volume_name=$($ssh attr -g ltfs.volumeName $ltfs_mountpoint)
volume_name=$(echo ${volume_name##*:} | sed -e 's/\r\n//g')
fi
get_tape_infos
else
printf "${RED}Error: ${NO_COLOR}Can't mount volume {GREEN}'%s'${NO_COLOR} from MediaPool {GREEN}'%s'${NO_COLOR}\n" \
printf "${RED}Error: ${NO_COLOR}Can't mount volume ${GREEN}'%s'${NO_COLOR} from MediaPool ${GREEN}'%s'${NO_COLOR}\n" \
"$volume_name" "$mediapool_name"
die "Can't mount valid tape."
fi