From d0a49daf85a431e222b453ca8de0a1f9600998f6 Mon Sep 17 00:00:00 2001
From: openoms <oms@tuta.io>
Date: Mon, 6 Jun 2022 20:04:57 +0100
Subject: [PATCH] add zfs notes

---
 zfs/sync-chain.md | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 zfs/sync-chain.md

diff --git a/zfs/sync-chain.md b/zfs/sync-chain.md
new file mode 100644
index 0000000..e221780
--- /dev/null
+++ b/zfs/sync-chain.md
@@ -0,0 +1,38 @@
+# Snapshot and run bitcoin-qt from a cloned filesystem
+
+```
+# create snapshot of /mnt/hdd - fourdiskpool/hdd@hdd-snapshot
+zfs snap fourdiskpool/hdd@hdd-snapshot
+# display snapshots
+zfs list -t snap
+# clone snapshot (fourdiskpool/hdd/hdd-snapshot-clone)
+sudo zfs clone fourdiskpool/hdd@hdd-snapshot fourdiskpool/hdd/hdd-snapshot-clone
+# see if mounted
+zfs list
+
+# delete lockfile
+sudo rm /mnt/hdd/hdd-snapshot-clone/bitcoin/.lock
+# delete bitcoin.conf
+sudo rm /mnt/hdd/hdd-snapshot-clone/bitcoin/bitcoin.conf
+
+# sync (not reliable while the source bitcoind is running)
+sudo -u bitcoin rsync -v -r /mnt/hdd/bitcoin/blocks/ /mnt/hdd/hdd-snapshot-clone/bitcoin/blocks/
+sudo -u bitcoin rsync -v -r /mnt/hdd/bitcoin/chainstate/ /mnt/hdd/hdd-snapshot-clone/bitcoin/chainstate/
+
+
+# start the destination node
+sudo -u bitcoin bitcoind --listen=0 --datadir=/mnt/hdd/hdd-snapshot-clone/bitcoin
+
+# to use the bitcoin-qt GUI use the password_B to log in with the bitcoin user (might need to permit it in the ssh settings)
+ssh -X bitcoin@raspiblitz_ip
+
+bitcoin-qt --listen=0 --datadir=/mnt/hdd/hdd-snapshot-clone/bitcoin
+```
+
+```
+# OFF
+# destroy the clone filesystem
+sudo zfs destroy fourdiskpool/hdd/hdd-snapshot-clone
+# destroy the snapshot
+sudo zfs destroy fourdiskpool/hdd@hdd-snapshot
+```
\ No newline at end of file