Ass ability to move all datasets

zfs-move-over-ssh.sh

@@ -5,13 +5,13 @@ set -Eeuo pipefail
 
 usage() {
     cat <<'EOF'
-Usage: zfs-move-over-ssh.sh [options] SOURCE_ROOT REMOTE_HOST DESTINATION_ROOT
+Usage: zfs-move-over-ssh.sh [options] SOURCE_POOL REMOTE_HOST DESTINATION_ROOT
 
-Create one snapshot for every filesystem under SOURCE_ROOT and send each one
-over SSH. Filesystems retain their relative paths below DESTINATION_ROOT.
+Create one snapshot for every filesystem in SOURCE_POOL and send each one over
+SSH. Filesystems retain their relative paths below DESTINATION_ROOT.
 
 Arguments:
-  SOURCE_ROOT       Source ZFS filesystem, for example: tank/data
+    SOURCE_POOL       Source ZFS pool, for example: tank
   REMOTE_HOST       SSH host, optionally user@host
   DESTINATION_ROOT  Existing or new destination ZFS filesystem, for example: backup/data
 
@@ -77,14 +77,15 @@ done
     exit 2
 }
 
-SOURCE_ROOT="$1"
+SOURCE_POOL="$1"
 REMOTE_HOST="$2"
 DESTINATION_ROOT="${3%/}"
 SNAPSHOT_NAME="move-$(date +%Y%m%d-%H%M%S)"
 
 command -v zfs >/dev/null || die "zfs command was not found"
+command -v zpool >/dev/null || die "zpool command was not found"
 command -v ssh >/dev/null || die "ssh command was not found"
-zfs list -H -o name -t filesystem "$SOURCE_ROOT" >/dev/null || die "source filesystem does not exist: $SOURCE_ROOT"
+zpool list -H -o name "$SOURCE_POOL" >/dev/null || die "source pool does not exist: $SOURCE_POOL"
 
 if ! $DRY_RUN; then
     ssh "${SSH_OPTIONS[@]}" "$REMOTE_HOST" 'sudo -n zfs list -H -o name -t filesystem >/dev/null' \
@@ -93,7 +94,7 @@ fi
 
 map_destination() {
     local filesystem="$1"
-    local relative_path="${filesystem#"$SOURCE_ROOT"}"
+    local relative_path="${filesystem#"$SOURCE_POOL"}"
     printf '%s%s\n' "$DESTINATION_ROOT" "$relative_path"
 }
 
@@ -107,8 +108,8 @@ run() {
     fi
 }
 
-mapfile -t FILESYSTEMS < <(zfs list -H -o name -t filesystem -r "$SOURCE_ROOT")
-((${#FILESYSTEMS[@]} > 0)) || die "no filesystems found below $SOURCE_ROOT"
+mapfile -t FILESYSTEMS < <(zfs list -H -o name -t filesystem -r "$SOURCE_POOL")
+((${#FILESYSTEMS[@]} > 0)) || die "no filesystems found in $SOURCE_POOL"
 
 printf 'Migration snapshot: %s\n' "$SNAPSHOT_NAME"
 for filesystem in "${FILESYSTEMS[@]}"; do