在Ubuntu上安装和配置Multipath分为以下几个步骤:
- 安装依赖包:
sudo apt-get update sudo apt-get install -y multipath-tools open-iscsi
- 加载内核模块:
sudo modprobe dm-multipath sudo modprobe scsi_dh_alua
- 创建并编辑Multipath配置文件:
sudo nano /etc/multipath.conf
将以下内容粘贴到配置文件中,根据实际情况修改设备名称、WWID和路径组:
defaults { user_friendly_names yes path_grouping_policy "group_by_prio" } devices { device { vendor "VendorName" product "ProductName" path_grouping_policy group_by_prio prio alua path_checker tur failback immediate rr_weight uniform no_path_retry queue } } blacklist { devnode "^sd[a-z]" } blacklist_exceptions { device { vendor "VendorName" product "ProductName" } }
- 重启Multipath服务:
sudo systemctl restart multipathd
- 扫描并发现存储设备:
sudo iscsiadm -m discovery -t sendtargets -psudo iscsiadm -m node -l
- 确认Multipath设备已创建:
multipath -ll
如果一切正常,您应该能看到类似于以下的输出:
mpatha (36001405a8f9b9db) dm-0 VendorName, ProductName size=1.0G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw `-+- policy='service-time 0' prio=1 status=active |- 3:0:0:0 sda 8:0 active ready running `- 4:0:0:0 sdb 8:16 active ready running
现在,您已经成功地在Ubuntu上安装并配置了Multipath。请注意,这些步骤可能因存储设备和网络配置而有所不同。