如何在 Linux 上安装和配置EMCPowerPath

如何在 Linux 环境中安装和配置EMC Powerpath软件？

在开始 EMC 电源路径安装和配置之前，请确保 HBA 卡已安装在服务器上并且光纤通道交换机已正确分区。

1. 在 Linux 上安装 EMC Powerpath

从 EMC powerlink 网站下载 Powerpath 软件。如果您购买了 EMC 支持，您应该可以访问 powerlink。

在以下示例中，EMC Powerpath 5 ( EMCpower.LINUX-5.3.0.00.00-185.rhel5.i386.rpm ) 安装在 Red Hat 5 上。（用于CLARiiON Array）

# rpm -ivh EMCpower.LINUX-5.3.0.00.00-185.rhel5.i386.rpm --test
Preparing...                ########################################### [100%]

# rpm -ivh EMCpower.LINUX-5.3.0.00.00-185.rhel5.i386.rpm
Preparing...                ########################################### [100%]
   1:EMCpower.LINUX         ########################################### [100%]
All trademarks used herein are the property of their respective owners.
NOTE:License registration is not required to manage the CLARiiON AX series array.

2. 注册 EMC Powerpath

在您可以使用 EMC Powerpath 软件之前，您应该使用从 EMC 购买软件时收到的 EMC Powerpath 许可证密钥注册它。

使用emcpreg 工具安装 EMC Powerpath 许可证密钥，如下所示。

# emcpreg -install

===========   EMC PowerPath Registration ===========
Do you have a new registration key or keys to enter?[n] y
Enter the registration keys(s) for your product(s),
one per line, pressing Enter after each key.
After typing all keys, press Enter again.

Key (Enter if done): **emc-powerpath-license-key**
1 key(s) successfully added.
Key successfully installed.

Key (Enter if done):
Key  is invalid, ignored.
Try again or press Enter if done.
1 key(s) successfully registered.

3. 验证 EMC Powerpath 注册

使用 EMC powermt 命令检查注册，如下所示。

# powermt check_registration

Key **emc-powerpath-license-key**
  Product: PowerPath
  Capabilities: All

4. 验证多条路径

安装 EMC powerpath 后，执行如下所示的powermt display dev=all以验证是否相应地显示了多个路径。

# powermt display dev=all
Pseudo name=emcpowera
CLARiiON ID=00000000000 [db-server]
Logical device ID=12121212121212 [LUN 1]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0
Owner: default=SP A, current=SP A
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
### HW Path                 I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
  1 QLogic Fibre Channel 2300 sdb        SP A4     active  alive      0      0
  1 QLogic Fibre Channel 2300 sdd        SP B4     active  alive      0      0
  2 QLogic Fibre Channel 2300 sdf        SP A5     active  alive      0      0
  2 QLogic Fibre Channel 2300 sdh        SP B5     active  alive      0      0