[未完待续] PostgreSQL on ECS 高效率持续备份设计 - By ZFS on Linux

1 minute read

背景

设计

master1 -> standby on single ECS with multi-ssd云盘 … mastern -> standby on single ECS with multi-ssd云盘

zfs1_data (压缩+快照) zfs1_wal (压缩) … zfsn_data (压缩+快照) zfsn_wal (压缩)

demo

1、以CentOS 7.3为例，下载对应的rpm。

EL6 Package: http://download.zfsonlinux.org/epel/zfs-release.el6.noarch.rpm
EL7.3 Package: http://download.zfsonlinux.org/epel/zfs-release.el7_3.noarch.rpm
EL7.4 Package: http://download.zfsonlinux.org/epel/zfs-release.el7_4.noarch.rpm

实时更新，请看

https://github.com/zfsonlinux/zfs/wiki/RHEL-and-CentOS

yum install -y http://download.zfsonlinux.org/epel/zfs-release.el7_3.noarch.rpm

两种安装zfs的模式:

一种是与Linux分发版本内核完全匹配的模式(kABI-tracking kmod)

一种是任意内核版本的模式(kmod)，推荐使用。 (一定要安装linux当前运行内核版本的kernel-devel)

找到对应的kernel-devel的方法

If your kernel is not listed by yum because it is in an older tree, you can download it manually from the CentOS Vault.

CentOS-7: Look in either the 7.N.YYMM/os/x86_64/Packages/ or the 7.N.YYMM/updates/x86_64/Packages/ directories for the kernel-devel-version.x86_64.rpm

CentOS-6: Look in either the 6.N/os/arch/Packages/ or the 6.N/updates/arch/Packages/ directories for the kernel-devel-version.arch.rpm

安装

uname -a
Linux izuf64ame76453g49tfw8pz 3.10.0-514.26.2.el7.x86_64 #1 SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

yum install -y http://vault.centos.org/7.3.1611/updates/x86_64/Packages/kernel-devel-3.10.0-514.26.2.el7.x86_64.rpm

yum install -y zfs
  
查看日志，是否有报错，正常情况下没有报错

测试是否可用