学习oracle的同学都清楚,oracle的rman是最好的备份工具(一般第三方备份软件也基本上是通过调用rman的备份接口实现的)
pg_rman下载地址https://github.com/ossc-db/pg_rman/releases,下载和当前pg版本/操作系统版本对应的pg_rman包
安装pg_rman缺少包
缺少libpq.so.5()和postgresql10-libs相关的包

[root@localhost lib]# rpm -ivh /tmp/pg_rman-1.3.6-1.pg10.rhel7.x86_64.rpm
error: Failed dependencies:
        libpq.so.5()(64bit) is needed by pg_rman-1.3.6-1.pg10.rhel7.x86_64
        postgresql10-libs is needed by pg_rman-1.3.6-1.pg10.rhel7.x86_64

安装pg相关源

[root@localhost tmp]# rpm -ivh pgdg-redhat10-10-2.noarch.rpm
warning: pgdg-redhat10-10-2.noarch.rpm: Header V4 DSA/SHA1 Signature, key ID 442df0f8: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:pgdg-redhat10-10-2               ################################# [100%]
[root@localhost yum.repos.d]# pwd
/etc/yum.repos.d
[root@localhost yum.repos.d]# more pgdg-10-redhat.repo
[pgdg10]
name=PostgreSQL 10 $releasever - $basearch
baseurl=https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-$releasever-$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG-10
[pgdg10-source]
name=PostgreSQL 10 $releasever - $basearch - Source
failovermethod=priority
baseurl=https://download.postgresql.org/pub/repos/yum/srpms/10/redhat/rhel-$releasever-$basearch
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG-10
[pgdg10-updates-testing]
name=PostgreSQL 10 $releasever - $basearch
baseurl=https://download.postgresql.org/pub/repos/yum/testing/10/redhat/rhel-$releasever-$basearch
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG-10
[pgdg10-source-updates-testing]
name=PostgreSQL 10 $releasever - $basearch - Source
failovermethod=priority
baseurl=https://download.postgresql.org/pub/repos/yum/srpms/testing/10/redhat/rhel-$releasever-$basearch
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG-10

安装postgresql10-libs包

[root@localhost tmp]# yum install postgresql10-libs
Loaded plugins: langpacks, ulninfo
pgdg10                                         | 4.1 kB  00:00:00
(1/2): pgdg10/7Server/x86_64/group_gz          |  245 B  00:00:01
(2/2): pgdg10/7Server/x86_64/primary_db        | 162 kB  00:00:13
Resolving Dependencies
--> Running transaction check
---> Package postgresql10-libs.x86_64 0:10.4-1PGDG.rhel7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================
 Package                 Arch     Version               Repository   Size
==========================================================================
Installing:
 postgresql10-libs       x86_64   10.4-1PGDG.rhel7      pgdg10      354 k
Transaction Summary
==========================================================================
Install  1 Package
Total download size: 354 k
Installed size: 1.3 M
Is this ok [y/d/N]: y
Downloading packages:
postgresql10-libs-10.4-1PGDG.rhel7.x86_64.rpm      | 354 kB  00:00:02
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Installing : postgresql10-libs-10.4-1PGDG.rhel7.x86_64      1/1
  Verifying  : postgresql10-libs-10.4-1PGDG.rhel7.x86_64      1/1
Installed:
  postgresql10-libs.x86_64 0:10.4-1PGDG.rhel7
Complete!

安装pg_rman

[root@localhost tmp]# rpm -ivh pg_rman-1.3.6-1.pg10.rhel7.x86_64.rpm
Preparing...                          ################################# [100%]
Updating / installing...
   1:pg_rman-1.3.6-1.pg10.rhel7       ################################# [100%]

查找默认pg_rman安装路径

[root@localhost bin]# find / -name "pg_rman"
/usr/pgsql-10/bin/pg_rman
[root@localhost bin]# cd /usr/pgsql-10/bin
[root@localhost bin]# ls
pg_rman

迁移到pg安装目录中

[root@localhost bin]# mv pg_rman /opt/PostgreSQL/10/bin

pg_rman命令测试

[root@localhost bin]# pg_rman --help
pg_rman manage backup/recovery of PostgreSQL database.
Usage:
  pg_rman OPTION init
  pg_rman OPTION backup
  pg_rman OPTION restore
  pg_rman OPTION show [DATE]
  pg_rman OPTION show detail [DATE]
  pg_rman OPTION validate [DATE]
  pg_rman OPTION delete DATE
  pg_rman OPTION purge
Common Options:
  -D, --pgdata=PATH         location of the database storage area
  -A, --arclog-path=PATH    location of archive WAL storage area
  -S, --srvlog-path=PATH    location of server log storage area
  -B, --backup-path=PATH    location of the backup storage area
  -c, --check               show what would have been done
  -v, --verbose             show what detail messages
  -P, --progress            show progress of processed files
Backup options:
  -b, --backup-mode=MODE    full, incremental, or archive
  -s, --with-serverlog      also backup server log files
  -Z, --compress-data       compress data backup with zlib
  -C, --smooth-checkpoint   do smooth checkpoint before backup
  -F, --full-backup-on-error   switch to full backup mode
                               if pg_rman cannot find validate full backup
                               on current timeline
      NOTE: this option is only used in --backup-mode=incremental or archive.
  --keep-data-generations=NUM keep NUM generations of full data backup
  --keep-data-days=NUM        keep enough data backup to recover to N days ago
  --keep-arclog-files=NUM   keep NUM of archived WAL
  --keep-arclog-days=DAY    keep archived WAL modified in DAY days
  --keep-srvlog-files=NUM   keep NUM of serverlogs
  --keep-srvlog-days=DAY    keep serverlog modified in DAY days
  --standby-host=HOSTNAME   standby host when taking backup from standby
  --standby-port=PORT       standby port when taking backup from standby
Restore options:
  --recovery-target-time    time stamp up to which recovery will proceed
  --recovery-target-xid     transaction ID up to which recovery will proceed
  --recovery-target-inclusive whether we stop just after the recovery target
  --recovery-target-timeline  recovering into a particular timeline
  --hard-copy                 copying archivelog not symbolic link
Catalog options:
  -a, --show-all            show deleted backup too
Delete options:
  -f, --force               forcibly delete backup older than given DATE
Connection options:
  -d, --dbname=DBNAME       database to connect
  -h, --host=HOSTNAME       database server host or socket directory
  -p, --port=PORT           database server port
  -U, --username=USERNAME   user name to connect as
  -w, --no-password         never prompt for password
  -W, --password            force password prompt
Generic options:
  -q, --quiet               don't show any INFO or DEBUG messages
  --debug                   show DEBUG messages
  --help                    show this help, then exit
  --version                 output version information, then exit
Read the website for details. <http://github.com/ossc-db/pg_rman>
Report bugs to <http://github.com/ossc-db/pg_rman/issues>.