title: 020《樹莓派4B家庭服務(wù)器搭建指南》第二十期：在樹莓派運(yùn)行rsnapshot, 實(shí)現(xiàn)對(duì)服務(wù)器數(shù)據(jù)低成本增量本地備份
我的天翼云服務(wù)器有/opt 和 /usr/share/nginx兩個(gè)目錄, 用來存儲(chǔ)網(wǎng)站的內(nèi)容, 數(shù)據(jù)無價(jià), 為了避免珍貴的數(shù)據(jù)丟失，我決定使用樹莓派運(yùn)行 rsnapshot, 為網(wǎng)站內(nèi)容做定期備份。
為什么選擇rsnapshot ？
- rsnapshot是基于rsync的開源軟件, 原理簡單，無后門, 無需強(qiáng)制加密, 備份后的數(shù)據(jù)所見即所得
- rsnapshot通過硬鏈接管理文件, 處于不同文件夾的同一個(gè)文件, 只占用一份存儲(chǔ)空間, 節(jié)省磁盤
- rsnapshot默認(rèn)進(jìn)行增量備份, 節(jié)省帶寬。
- rsnapshot長期維護(hù)(從2015年開始維護(hù)), 功能穩(wěn)定，在Github的開源倉庫
https://github.com/rsnapshot/rsnapshot有2.9k Star，廣受好評(píng)
安裝rsnapshot
sudo apt install rsnapshot
配置樹莓派免密登錄云服務(wù)器
cd ~/.ssh
ssh-keygen
# 設(shè)置密鑰權(quán)限
# 公鑰644
sudo chmod 644 ~/.ssh/fangyuanxiaozhan.com.pub
# 私鑰600
sudo chmod 600 ~/.ssh/fangyuanxiaozhan.com
將公鑰發(fā)送的遠(yuǎn)程主機(jī)
ssh-copy-id -i ~/.ssh/fangyuanxiaozhan.com.pub 遠(yuǎn)程主機(jī)用戶名@遠(yuǎn)程主機(jī)ip或域名
在樹莓派創(chuàng)建 ~/.ssh/config 并給與權(quán)限600
# 如果已經(jīng)存在~/.ssh/config 則無需創(chuàng)建
touch ~/.ssh/config
chmod 600 ~/.ssh/config
在~/.ssh/config 中填入以下內(nèi)容
Host 主機(jī)ip或域名
HostName 主機(jī)ip或域名
User root
IdentityFile ~/.ssh/fangyuanxiaozhan.com
ssh可以免密登錄，基于rsync的rsnapshot也可以免密從服務(wù)器傳輸文件了。
按需求修改配置文件
- 在樹莓派創(chuàng)建rsnapshot備份文件夾
# 創(chuàng)建rsnapshot存儲(chǔ)數(shù)據(jù)的根目錄
mkdir /opt/rsnapshot
# 創(chuàng)建存儲(chǔ)我天翼云服務(wù)器數(shù)據(jù)的目錄
mkdir /opt/rsnapshot/CTYun
- 設(shè)置根目錄
修改rsnapshot配置文件/etc/rsnapshot.conf, 將snapshot_root對(duì)應(yīng)的字段修改為在樹莓派創(chuàng)建的根目錄
snapshot_root /opt/rsnapshot/
配置文件配置行之間使用Tab填充，空格會(huì)報(bào)錯(cuò)，比如snapshot_root(這里用Tab填充)/opt/rsnapshot/
- 屏蔽本機(jī)備份配置
查看/etc/rsnapshot.conf 的底部，我們可以看到很多backup開頭的配置行，其中默認(rèn)的幾行，是對(duì)樹莓派本機(jī)的幾個(gè)目錄備份，可以前面添加#屏蔽掉
- 移除對(duì)ssh絕對(duì)路徑的注釋
由于rsnapshot從服務(wù)器備份數(shù)據(jù)依賴了rsync，而rsync又依賴了ssh，所以我們需要將ssh的絕對(duì)路徑告訴rsnapshot, 也就是將cmd_ssh 所在行開頭的#去掉
cmd_ssh /usr/bin/ssh
- 改變鎖文件的位置
lockfile的作用是防止同時(shí)運(yùn)行兩個(gè)rsnapshot實(shí)例，相當(dāng)于一把鎖，這把鎖的位置可以由我們自己定義，lockfile的默認(rèn)位置為/var/run/rsnapshot.pid ，我想以用戶名ubuntu的身份運(yùn)行rsnapshot實(shí)例，就要把鎖文件位置配置到 ubuntu用戶有權(quán)限修改的位置，我的處理方式是，新建 /home/ubuntu/.rsnapshot 文件夾
mkdir /home/ubuntu/.rsnapshot
然后將lockfile改為
lockfile /home/ubuntu/.rsnapshot/rsnapshot.pid
- 備份文件夾的配置
在配置文件尾部追加
# CTYun
backup root@fangyuanxiaozhan.com:/etc/nginx ./
backup root@fangyuanxiaozhan.com:/opt ./ exclude=/opt/before,exclude=/opt/EasyTypora/node_modules
backup root@fangyuanxiaozhan.com:/usr/share/nginx/fangyuanxiaozhan.com ./
測試配置文件格式是否正確
rsnapshot configtest
我最終的配置文件（供參考）
#################################################
# rsnapshot.conf - rsnapshot configuration file #
#################################################
# #
# PLEASE BE AWARE OF THE FOLLOWING RULE: #
# #
# This file requires tabs between elements #
# #
#################################################
#######################
# CONFIG FILE VERSION #
#######################
config_version 1.2
###########################
# SNAPSHOT ROOT DIRECTORY #
###########################
# All snapshots will be stored under this root directory.
#
snapshot_root /opt/rsnapshot/CTYun/
# If no_create_root is enabled, rsnapshot will not automatically create the
# snapshot_root directory. This is particularly useful if you are backing
# up to removable media, such as a FireWire or USB drive.
#
#no_create_root 1
#################################
# EXTERNAL PROGRAM DEPENDENCIES #
#################################
# LINUX USERS: Be sure to uncomment "cmd_cp". This gives you extra features.
# EVERYONE ELSE: Leave "cmd_cp" commented out for compatibility.
#
# See the README file or the man page for more details.
#
cmd_cp /bin/cp
# uncomment this to use the rm program instead of the built-in perl routine.
#
cmd_rm /bin/rm
# rsync must be enabled for anything to work. This is the only command that
# must be enabled.
#
cmd_rsync /usr/bin/rsync
# Uncomment this to enable remote ssh backups over rsync.
#
cmd_ssh /usr/bin/ssh
# Comment this out to disable syslog support.
#
cmd_logger /usr/bin/logger
# Uncomment this to specify the path to "du" for disk usage checks.
# If you have an older version of "du", you may also want to check the
# "du_args" parameter below.
#
#cmd_du /usr/bin/du
# Uncomment this to specify the path to rsnapshot-diff.
#
#cmd_rsnapshot_diff /usr/bin/rsnapshot-diff
# Specify the path to a script (and any optional arguments) to run right
# before rsnapshot syncs files
#
#cmd_preexec /path/to/preexec/script
# Specify the path to a script (and any optional arguments) to run right
# after rsnapshot syncs files
#
#cmd_postexec /path/to/postexec/script
# Paths to lvcreate, lvremove, mount and umount commands, for use with
# Linux LVMs.
#
#linux_lvm_cmd_lvcreate /sbin/lvcreate
#linux_lvm_cmd_lvremove /sbin/lvremove
#linux_lvm_cmd_mount /bin/mount
#linux_lvm_cmd_umount /bin/umount
#########################################
# BACKUP LEVELS / INTERVALS #
# Must be unique and in ascending order #
# e.g. alpha, beta, gamma, etc. #
#########################################
retain alpha 6
retain beta 7
retain gamma 4
#retain delta 3
############################################
# GLOBAL OPTIONS #
# All are optional, with sensible defaults #
############################################
# Verbose level, 1 through 5.
# 1 Quiet Print fatal errors only
# 2 Default Print errors and warnings only
# 3 Verbose Show equivalent shell commands being executed
# 4 Extra Verbose Show extra verbose information
# 5 Debug mode Everything
#
verbose 2
# Same as "verbose" above, but controls the amount of data sent to the
# logfile, if one is being used. The default is 3.
# If you want the rsync output, you have to set it to 4
#
loglevel 3
# If you enable this, data will be written to the file you specify. The
# amount of data written is controlled by the "loglevel" parameter.
#
#logfile /var/log/rsnapshot.log
# If enabled, rsnapshot will write a lockfile to prevent two instances
# from running simultaneously (and messing up the snapshot_root).
# If you enable this, make sure the lockfile directory is not world
# writable. Otherwise anyone can prevent the program from running.
#
lockfile /home/ubuntu/.rsnapshot/rsnapshot.pid
# By default, rsnapshot check lockfile, check if PID is running
# and if not, consider lockfile as stale, then start
# Enabling this stop rsnapshot if PID in lockfile is not running
#
#stop_on_stale_lockfile 0
# Default rsync args. All rsync commands have at least these options set.
#
#rsync_short_args -a
#rsync_long_args --delete --numeric-ids --relative --delete-excluded
# ssh has no args passed by default, but you can specify some here.
#
#ssh_args -p 22
# Default arguments for the "du" program (for disk space reporting).
# The GNU version of "du" is preferred. See the man page for more details.
# If your version of "du" doesn't support the -h flag, try -k flag instead.
#
#du_args -csh
# If this is enabled, rsync won't span filesystem partitions within a
# backup point. This essentially passes the -x option to rsync.
# The default is 0 (off).
#
#one_fs 0
# The include and exclude parameters, if enabled, simply get passed directly
# to rsync. If you have multiple include/exclude patterns, put each one on a
# separate line. Please look up the --include and --exclude options in the
# rsync man page for more details on how to specify file name patterns.
#
#include ???
#include ???
#exclude ???
#exclude ???
# The include_file and exclude_file parameters, if enabled, simply get
# passed directly to rsync. Please look up the --include-from and
# --exclude-from options in the rsync man page for more details.
#
#include_file /path/to/include/file
#exclude_file /path/to/exclude/file
# If your version of rsync supports --link-dest, consider enabling this.
# This is the best way to support special files (FIFOs, etc) cross-platform.
# The default is 0 (off).
#
#link_dest 0
# When sync_first is enabled, it changes the default behaviour of rsnapshot.
# Normally, when rsnapshot is called with its lowest interval
# (i.e.: "rsnapshot alpha"), it will sync files AND rotate the lowest
# intervals. With sync_first enabled, "rsnapshot sync" handles the file sync,
# and all interval calls simply rotate files. See the man page for more
# details. The default is 0 (off).
#
#sync_first 0
# If enabled, rsnapshot will move the oldest directory for each interval
# to [interval_name].delete, then it will remove the lockfile and delete
# that directory just before it exits. The default is 0 (off).
#
#use_lazy_deletes 0
# Number of rsync re-tries. If you experience any network problems or
# network card issues that tend to cause ssh to fail with errors like
# "Corrupted MAC on input", for example, set this to a non-zero value
# to have the rsync operation re-tried.
#
#rsync_numtries 0
# LVM parameters. Used to backup with creating lvm snapshot before backup
# and removing it after. This should ensure consistency of data in some special
# cases
#
# LVM snapshot(s) size (lvcreate --size option).
#
#linux_lvm_snapshotsize 100M
# Name to be used when creating the LVM logical volume snapshot(s).
#
#linux_lvm_snapshotname rsnapshot
# Path to the LVM Volume Groups.
#
#linux_lvm_vgpath /dev
# Mount point to use to temporarily mount the snapshot(s).
#
#linux_lvm_mountpath /path/to/mount/lvm/snapshot/during/backup
###############################
### BACKUP POINTS / SCRIPTS ###
###############################
# LOCALHOST
#backup /home/ localhost/
#backup /etc/ localhost/
#backup /usr/local/ localhost/
#backup /var/log/rsnapshot localhost/
#backup /etc/passwd localhost/
#backup /home/foo/My Documents/ localhost/
#backup /foo/bar/ localhost/ one_fs=1,rsync_short_args=-urltvpog
#backup_script /usr/local/bin/backup_pgsql.sh localhost/postgres/
# You must set linux_lvm_* parameters below before using lvm snapshots
#backup lvm://vg0/xen-home/ lvm-vg0/xen-home/
# EXAMPLE.COM
#backup_exec /bin/date "+ backup of example.com started at %c"
#backup root@example.com:/home/ example.com/ +rsync_long_args=--bwlimit=16,exclude=core
#backup root@example.com:/etc/ example.com/ exclude=mtab,exclude=core
#backup_exec ssh root@example.com "mysqldump -A > /var/db/dump/mysql.sql"
#backup root@example.com:/var/db/dump/ example.com/
#backup_exec /bin/date "+ backup of example.com ended at %c"
# CVS.SOURCEFORGE.NET
#backup_script /usr/local/bin/backup_rsnapshot_cvsroot.sh rsnapshot.cvs.sourceforge.net/
# RSYNC.SAMBA.ORG
#backup rsync://rsync.samba.org/rsyncftp/ rsync.samba.org/rsyncftp/
# CTYun
backup root@fangyuanxiaozhan.com:/etc/nginx ./
backup root@fangyuanxiaozhan.com:/opt ./ exclude=/opt/before,exclude=/opt/EasyTypora/node_modules
backup root@fangyuanxiaozhan.com:/usr/share/nginx/fangyuanxiaozhan.com ./
配置行內(nèi)的空余部分，不要用空格，一定要用Tab填充
- 關(guān)于備份數(shù)量上限的解釋
在以上配置文件中，有以下幾行
retain alpha 6
retain beta 7
retain gamma 4
以alpah為例， retain alpha 6代表最多進(jìn)行六個(gè)備份，比如alpha.0 alpha.1 alpha.2 alpha.3 alpha.4 alpha.5 ， 其中alpha.0為最新的備份，alpha.5為最老的備份，超過了6次備份，最早的一份將會(huì)從磁盤清除，首次運(yùn)行備份指令后，alpha.0 文件夾會(huì)生成在根目錄下面，也就是/opt/rsnapshot/CTYun/alpha.0, /opt/rsnapshot/CTYun/alpha.0文件夾里存放著備份好的文件目錄。
- 手動(dòng)進(jìn)行備份
rsnapshot -c /etc/rsnapshot.conf alpha
上面命令匯總，我們使用alpha策略進(jìn)行備份，并指定了配置文件的位置。
執(zhí)行完成后，查看目錄結(jié)構(gòu)
可以看到alpha.0成了真的的根目錄。
我們多運(yùn)行幾次rsnapshot -c /etc/rsnapshot.conf alpha ， 可以看到在/opt/rsnapshot/CTYun 文件夾下有幾個(gè)并列的alpha.* 文件夾
由于配置了retain alpha 6,無論我們運(yùn)行多少次，alpha.*都不會(huì)超過六個(gè)
自動(dòng)化備份
crontab是一款可以創(chuàng)建定時(shí)任務(wù)的工具，我們可以在crontab中添加每四小時(shí)運(yùn)行rsnapshot -c /etc/rsnapshot.conf alpha 的任務(wù)，這樣就相當(dāng)于每天執(zhí)行了6次備份。
在ubuntu中crontab默認(rèn)對(duì)所有用戶進(jìn)行了安裝，所以我們無需sudo權(quán)限就能創(chuàng)建任務(wù)，操作方法如下， 打開cron表
crontab -e
首次打開可以選擇編輯器，我選擇了vim 打開，添加每四小時(shí)運(yùn)行一次命令的配置
0 */4 * * * rsnapshot -c /etc/rsnapshot.conf alpha
寫入配置后，退出編輯器即可；
優(yōu)化: 創(chuàng)建每日?qǐng)?zhí)行，保留31天的備份任務(wù)
我希望每天凌晨4點(diǎn)能生成新備份，保留31天，但又不希望和每隔4小時(shí)的的備份有沖突(兩個(gè)任務(wù)共用logfile會(huì)相互影響)。
于是我新開一個(gè)配置文件/home/ubuntu/.rsnapshot/mouthly.conf, 添加retain monthly 31, 修改filelock 為lockfile /home/ubuntu/.rsnapshot/monthly.pid
這里的monthly 完全可以自定義，并沒有特殊性，可以是monthly001 或 monthly002, 只要運(yùn)行命令時(shí)，對(duì)應(yīng)即可。
內(nèi)容為
#################################################
# rsnapshot.conf - rsnapshot configuration file #
#################################################
# #
# PLEASE BE AWARE OF THE FOLLOWING RULE: #
# #
# This file requires tabs between elements #
# #
#################################################
#######################
# CONFIG FILE VERSION #
#######################
config_version 1.2
###########################
# SNAPSHOT ROOT DIRECTORY #
###########################
# All snapshots will be stored under this root directory.
#
snapshot_root /opt/rsnapshot/CTYun/
# If no_create_root is enabled, rsnapshot will not automatically create the
# snapshot_root directory. This is particularly useful if you are backing
# up to removable media, such as a FireWire or USB drive.
#
#no_create_root 1
#################################
# EXTERNAL PROGRAM DEPENDENCIES #
#################################
# LINUX USERS: Be sure to uncomment "cmd_cp". This gives you extra features.
# EVERYONE ELSE: Leave "cmd_cp" commented out for compatibility.
#
# See the README file or the man page for more details.
#
cmd_cp /bin/cp
# uncomment this to use the rm program instead of the built-in perl routine.
#
cmd_rm /bin/rm
# rsync must be enabled for anything to work. This is the only command that
# must be enabled.
#
cmd_rsync /usr/bin/rsync
# Uncomment this to enable remote ssh backups over rsync.
#
cmd_ssh /usr/bin/ssh
# Comment this out to disable syslog support.
#
cmd_logger /usr/bin/logger
# Uncomment this to specify the path to "du" for disk usage checks.
# If you have an older version of "du", you may also want to check the
# "du_args" parameter below.
#
#cmd_du /usr/bin/du
# Uncomment this to specify the path to rsnapshot-diff.
#
#cmd_rsnapshot_diff /usr/bin/rsnapshot-diff
# Specify the path to a script (and any optional arguments) to run right
# before rsnapshot syncs files
#
#cmd_preexec /path/to/preexec/script
# Specify the path to a script (and any optional arguments) to run right
# after rsnapshot syncs files
#
#cmd_postexec /path/to/postexec/script
# Paths to lvcreate, lvremove, mount and umount commands, for use with
# Linux LVMs.
#
#linux_lvm_cmd_lvcreate /sbin/lvcreate
#linux_lvm_cmd_lvremove /sbin/lvremove
#linux_lvm_cmd_mount /bin/mount
#linux_lvm_cmd_umount /bin/umount
#########################################
# BACKUP LEVELS / INTERVALS #
# Must be unique and in ascending order #
# e.g. alpha, beta, gamma, etc. #
#########################################
retain monthly 31
retain alpha 6
retain beta 7
retain gamma 4
#retain delta 3
############################################
# GLOBAL OPTIONS #
# All are optional, with sensible defaults #
############################################
# Verbose level, 1 through 5.
# 1 Quiet Print fatal errors only
# 2 Default Print errors and warnings only
# 3 Verbose Show equivalent shell commands being executed
# 4 Extra Verbose Show extra verbose information
# 5 Debug mode Everything
#
verbose 2
# Same as "verbose" above, but controls the amount of data sent to the
# logfile, if one is being used. The default is 3.
# If you want the rsync output, you have to set it to 4
#
loglevel 3
# If you enable this, data will be written to the file you specify. The
# amount of data written is controlled by the "loglevel" parameter.
#
#logfile /var/log/rsnapshot.log
# If enabled, rsnapshot will write a lockfile to prevent two instances
# from running simultaneously (and messing up the snapshot_root).
# If you enable this, make sure the lockfile directory is not world
# writable. Otherwise anyone can prevent the program from running.
#
lockfile /home/ubuntu/.rsnapshot/monthly.pid
# By default, rsnapshot check lockfile, check if PID is running
# and if not, consider lockfile as stale, then start
# Enabling this stop rsnapshot if PID in lockfile is not running
#
#stop_on_stale_lockfile 0
# Default rsync args. All rsync commands have at least these options set.
#
#rsync_short_args -a
#rsync_long_args --delete --numeric-ids --relative --delete-excluded
# ssh has no args passed by default, but you can specify some here.
#
#ssh_args -p 22
# Default arguments for the "du" program (for disk space reporting).
# The GNU version of "du" is preferred. See the man page for more details.
# If your version of "du" doesn't support the -h flag, try -k flag instead.
#
#du_args -csh
# If this is enabled, rsync won't span filesystem partitions within a
# backup point. This essentially passes the -x option to rsync.
# The default is 0 (off).
#
#one_fs 0
# The include and exclude parameters, if enabled, simply get passed directly
# to rsync. If you have multiple include/exclude patterns, put each one on a
# separate line. Please look up the --include and --exclude options in the
# rsync man page for more details on how to specify file name patterns.
#
#include ???
#include ???
#exclude ???
#exclude ???
# The include_file and exclude_file parameters, if enabled, simply get
# passed directly to rsync. Please look up the --include-from and
# --exclude-from options in the rsync man page for more details.
#
#include_file /path/to/include/file
#exclude_file /path/to/exclude/file
# If your version of rsync supports --link-dest, consider enabling this.
# This is the best way to support special files (FIFOs, etc) cross-platform.
# The default is 0 (off).
#
#link_dest 0
# When sync_first is enabled, it changes the default behaviour of rsnapshot.
# Normally, when rsnapshot is called with its lowest interval
# (i.e.: "rsnapshot alpha"), it will sync files AND rotate the lowest
# intervals. With sync_first enabled, "rsnapshot sync" handles the file sync,
# and all interval calls simply rotate files. See the man page for more
# details. The default is 0 (off).
#
#sync_first 0
# If enabled, rsnapshot will move the oldest directory for each interval
# to [interval_name].delete, then it will remove the lockfile and delete
# that directory just before it exits. The default is 0 (off).
#
#use_lazy_deletes 0
# Number of rsync re-tries. If you experience any network problems or
# network card issues that tend to cause ssh to fail with errors like
# "Corrupted MAC on input", for example, set this to a non-zero value
# to have the rsync operation re-tried.
#
#rsync_numtries 0
# LVM parameters. Used to backup with creating lvm snapshot before backup
# and removing it after. This should ensure consistency of data in some special
# cases
#
# LVM snapshot(s) size (lvcreate --size option).
#
#linux_lvm_snapshotsize 100M
# Name to be used when creating the LVM logical volume snapshot(s).
#
#linux_lvm_snapshotname rsnapshot
# Path to the LVM Volume Groups.
#
#linux_lvm_vgpath /dev
# Mount point to use to temporarily mount the snapshot(s).
#
#linux_lvm_mountpath /path/to/mount/lvm/snapshot/during/backup
###############################
### BACKUP POINTS / SCRIPTS ###
###############################
# LOCALHOST
#backup /home/ localhost/
#backup /etc/ localhost/
#backup /usr/local/ localhost/
#backup /var/log/rsnapshot localhost/
#backup /etc/passwd localhost/
#backup /home/foo/My Documents/ localhost/
#backup /foo/bar/ localhost/ one_fs=1,rsync_short_args=-urltvpog
#backup_script /usr/local/bin/backup_pgsql.sh localhost/postgres/
# You must set linux_lvm_* parameters below before using lvm snapshots
#backup lvm://vg0/xen-home/ lvm-vg0/xen-home/
# EXAMPLE.COM
#backup_exec /bin/date "+ backup of example.com started at %c"
#backup root@example.com:/home/ example.com/ +rsync_long_args=--bwlimit=16,exclude=core
#backup root@example.com:/etc/ example.com/ exclude=mtab,exclude=core
#backup_exec ssh root@example.com "mysqldump -A > /var/db/dump/mysql.sql"
#backup root@example.com:/var/db/dump/ example.com/
#backup_exec /bin/date "+ backup of example.com ended at %c"
# CVS.SOURCEFORGE.NET
#backup_script /usr/local/bin/backup_rsnapshot_cvsroot.sh rsnapshot.cvs.sourceforge.net/
# RSYNC.SAMBA.ORG
#backup rsync://rsync.samba.org/rsyncftp/ rsync.samba.org/rsyncftp/
# CTYun
backup root@fangyuanxiaozhan.com:/etc/nginx ./
backup root@fangyuanxiaozhan.com:/opt ./ exclude=/opt/before,exclude=/opt/EasyTypora/node_modules
backup root@fangyuanxiaozhan.com:/usr/share/nginx/fangyuanxiaozhan.com ./
測試月度備份配置文件
rsnapshot -c /home/ubuntu/.rsnapshot/monthly.conf configtest
運(yùn)行crontab -e ，將以下配置添加為每日凌晨四點(diǎn)運(yùn)行的定時(shí)任務(wù)
0 4 * * * rsnapshot -c /home/ubuntu/.rsnapshot/monthly.conf monthly
monthly任務(wù)備份后，會(huì)產(chǎn)生以monthly開頭的文件夾
rsnapshot -c /home/ubuntu/.rsnapshot/monthly.conf monthly
小結(jié)
云服務(wù)商的硬盤還是蠻貴的，對(duì)于個(gè)人開發(fā)者而言，同時(shí)能省一些錢總是好的。
2023年的機(jī)械硬盤算是很便宜了，1千塊能買16TB的全新盤，搞一塊插到樹莓派，定期對(duì)服務(wù)器數(shù)據(jù)做增量備份，成本比云服務(wù)商的低很多。
如果你是一個(gè)上班族，辦公室和家里各部署一套rsnapshot備份，也算是支持?jǐn)?shù)據(jù)分布式異地容災(zāi)了。
為什么要把服務(wù)器數(shù)據(jù)備份到本地？目前的ICP備案搞的風(fēng)風(fēng)火火，買了服務(wù)器，由于備案的限制，也不能馬上使用80，443等端口，即使服務(wù)器備了案，解析的域名也會(huì)受到限制，如果有一天，由于某種不可抗力，把個(gè)人備案關(guān)聯(lián)的服務(wù)器的數(shù)據(jù)全部封存，也不是不可能，所以，做好本地?cái)?shù)據(jù)備份，總是沒錯(cuò)的，反正成本也不高。
本文屬于《樹莓派不吃灰》系列的第二十期，《樹莓派不吃灰》系列教程開源地址 github.com/zhaoolee/pi文章來源：http://www.zghlxwxcb.cn/news/detail-657206.html
本文永久更新地址(歡迎來讀留言,寫評(píng)論):
https://www.v2fy.com/p/2023-08-17-rsnapshot-1692258217000文章來源地址http://www.zghlxwxcb.cn/news/detail-657206.html
到了這里，關(guān)于《樹莓派4B家庭服務(wù)器搭建指南》第二十期：在樹莓派運(yùn)行rsnapshot, 實(shí)現(xiàn)對(duì)服務(wù)器數(shù)據(jù)低成本增量本地備份的文章就介紹完了。如果您還想了解更多內(nèi)容，請(qǐng)?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！
