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add sync-chain notes

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openoms
2022-06-08 07:29:28 +01:00
parent 34c35baae6
commit 3444b1e706
1 changed files with 13 additions and 5 deletions
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zfs/sync-chain.md
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@@ -3,7 +3,7 @@
## Create the snapshot, clone and mount ## Create the snapshot, clone and mount
``` ```
# create snapshot of /mnt/hdd - fourdiskpool/hdd@hdd-snapshot # create snapshot of /mnt/hdd - fourdiskpool/hdd@hdd-snapshot
zfs snap fourdiskpool/hdd@hdd-snapshot sudo zfs snap fourdiskpool/hdd@hdd-snapshot
# display snapshots # display snapshots
zfs list -t snap zfs list -t snap
# clone snapshot (fourdiskpool/hdd/hdd-snapshot-clone) # clone snapshot (fourdiskpool/hdd/hdd-snapshot-clone)
@@ -15,8 +15,12 @@ zfs list
sudo rm /mnt/hdd/hdd-snapshot-clone/bitcoin/.lock sudo rm /mnt/hdd/hdd-snapshot-clone/bitcoin/.lock
# delete bitcoin.conf # delete bitcoin.conf
sudo rm /mnt/hdd/hdd-snapshot-clone/bitcoin/bitcoin.conf sudo rm /mnt/hdd/hdd-snapshot-clone/bitcoin/bitcoin.conf
```
# sync (not reliable while the source bitcoind is running) ## sync an existing snapshot
```
# make sure the source bitcoind is stopped
# it is faster to just create a new snapshot
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/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/ sudo -u bitcoin rsync -v -r /mnt/hdd/bitcoin/chainstate/ /mnt/hdd/hdd-snapshot-clone/bitcoin/chainstate/
``` ```
@@ -38,6 +42,7 @@ bitcoin-qt --listen=0 --server=0 --datadir=/mnt/hdd/hdd-snapshot-clone/bitcoin
``` ```
# choose the disk to be prepared # choose the disk to be prepared
lsblk lsblk
# !! careful here to choose the right disk !!
hdd=sde hdd=sde
# create the filesystem and label # create the filesystem and label
@@ -49,14 +54,15 @@ sudo mkfs.ext4 -F -L BLOCKCHAIN /dev/${hdd}1
# mount # mount
sudo mount /dev/${hdd}1 /media/usb sudo mount /dev/${hdd}1 /media/usb
sudo mkdir /media/usb/bitcoin/ sudo mkdir /media/usb/bitcoin
sudo chown -R bitcoin:bitcoin /media/usb/bitcoin
# work in tmux # work in tmux
tmux tmux
cd /mnt/hdd/hdd-snapshot-clone/bitcoin/ cd /mnt/hdd/hdd-snapshot-clone/bitcoin/
sudo cp -rv ./chainstate ./blocks ./indexes ./testnet3 /media/usb/bitcoin/ sudo -u bitcoin cp -rv ./chainstate ./blocks ./indexes ./testnet3 /media/usb/bitcoin/
# monitor disk load # monitor disk load in a split pane (CTRL+B, ")
sudo iotop sudo iotop
# remove disk # remove disk
@@ -65,8 +71,10 @@ sudo umount /media/usb
## OFF ## OFF
``` ```
zfs list
# destroy the clone filesystem # destroy the clone filesystem
sudo zfs destroy fourdiskpool/hdd/hdd-snapshot-clone sudo zfs destroy fourdiskpool/hdd/hdd-snapshot-clone
# destroy the snapshot # destroy the snapshot
sudo zfs destroy fourdiskpool/hdd@hdd-snapshot sudo zfs destroy fourdiskpool/hdd@hdd-snapshot
zfs list
``` ```