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--- zfs_snapshot_send_receive [2017/08/27 14:21]
ian
+++ zfs_snapshot_send_receive [2020/02/13 22:55] (current)
@@ Line 15: / Line 15: @@
 <code>
 ssh-keygen
-ssh-copy-id -i /root/.ssh/id_rsa.pub backup@desterver
+ssh-copy-id -i /root/.ssh/id_rsa.pub root@destserver
 </code>
@@ Line 24: / Line 24: @@
 <code>
-# zfs create data/test
+destserver:~# zfs create data/test
+</code>
-# zfs allow -u backupuser create,receive,rename,mount,send data/test
+<note>
+'zfs allow' does not yet work with ZFS on Linux < 0.7.0 to allow a non-root destination user
-# zfs allow data/test
+<code>
+destserver:~# zfs allow -u backupuser create,receive,rename,mount,send data/test
+destserver:~# zfs allow data/test
 ---- Permissions on data/test ----------------------------------------
 Local+Descendent permissions:
         user backupuser create,mount,receive,rename,send
 </code>
+</note>
 . Create a snapshot schedule consisting of a local SRC schedule, and the remote DST schedule to send the snapshots.
@@ Line 39: / Line 45: @@
 Keep snapshots for 1week, with a snapshot every 30 minutes
 <code>
-# znapzendzetup create --recursive SRC '1week=>30min' data/test DST '1week=>30min' root@destserver:data/test
+# znapzendzetup create SRC '1week=>30min' data/test DST '1week=>30min' root@destserver:data/test
 </code>
 </note>
@@ Line 58: / Line 64: @@
 data/test  org.znapzend:enabled        on                                      local
 data/test  org.znapzend:zend_delay     0                                       local
-data/test  org.znapzend:recursive      on                                      local
+data/test  org.znapzend:recursive      off                                     local
 data/test  org.znapzend:mbuffer_size   1G                                      local
 data/test  org.znapzend:post_znap_cmd  off                                     local
@@ Line 80: / Line 86: @@
 NAME                          USED  AVAIL  REFER  MOUNTPOINT
 data/test@2017-08-27-110000      0      -    19K  -
+</code>
+<code>
+~# znapzendztatz -r data/test
+USED    LAST SNAPSHOT       DATASET
+.2K   2017-08-27-110000   data/test
+   2017-08-27-110000   root@destserver:data/test
+</code>
+. You can see how the files and directories looked at snapshot time by accessing the hidden .zfs directory
+<code>
+:~# find /data/test/.zfs -type f -ls
+      1 -rw-r--r--   1 root     root            0 Aug 27 11:08 /data/test/.zfs/snapshot/2017-08-27-113000/a.txt
+</code>
+<code>
+destserver:~# find /data/test/.zfs -type f -ls
+      1 -rw-r--r--   1 root     root            0 Aug 27 14:08 /data/test/.zfs/snapshot/2017-08-27-113000/a.txt
+</code>
+<code>
+:~# zfs diff data/test@2017-08-27-113000
+M       /data/test/
+M       /data/test/a.txt
++       /data/test/b.txt
+</code>
+<code>
+:~# zfs diff data/test@2017-08-27-110000 data/test@2017-08-27-113000
+M       /data/test/
++       /data/test/a.txt
 </code>

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