存储 频道

实战:在AIX上安装/卸载EMC Powerpath

    【IT168 专稿】EMC PowerPath用于增强存储环境中开放系统的运行性能,使服务器可以在较少的时间内完成更多的工作,并消除I/O通路中的单点故障。PowerPath通过均衡I/O请求并提供通路故障恢复功能,使服务器高效运行。配合EMC存储系统一起提供智能I/O通路管理,PowerPath通过不断地智能均衡I/O,帮助提高服务器管理重的存储负载的能力。

PowerPath可自动配置多个通路,并随着负载的变化动态调整,优化性能;可自动检测并恢复服务器与存储之间的通路故障,提高了EMC Clariion系列和Symmetrix系列存储系统的可用性。在通路被修复之后,PowerPath自动恢复在线通路,帮助减少计划内故障恢复服务。

PowerPath软件配置在每个运行UNIX® 、Microsoft® Windows® 、Novell® NetWare® 或Linux® 操作系统的主机服务器上。支持Fast-Wide Differential(FWD)SCSI,UltraSCSI和光纤通道接口。

在安装PowerPath之后1 ,系统管理员可以在服务器保持完全可用的情况下完成所有通路的维护、监视和配置工作,减少了计划内故障。普通的连线工作和存储处理器的替换工作可以不关机的情况下完成。

本文重点介绍如何在AIX环境下安装和卸载Powerpath。  

1、检查所需要的文件集 

Powerpath4.3以上要求devices.pci.df1000f7.com 5.1.0.58以上,devices.fcp.disk.rte 5.2.0.17以上
检查文件集
# lslpp -l devices.pci.df1000f7.com devices.fcp.disk.rte
  Fileset                      Level  State      Description        
  —————————————————————————-
Path: /usr/lib/objrepos
  devices.fcp.disk.rte      5.2.0.60  APPLIED    FC SCSI CD-ROM, Disk,
                                                 Read/Write Optical Device
                                                 Software
  devices.pci.df1000f7.com  5.2.0.60  APPLIED    Common PCI FC Adapter Device
                                                 Software
Path: /etc/objrepos
  devices.fcp.disk.rte      5.2.0.60  APPLIED    FC SCSI CD-ROM, Disk,
                                                 Read/Write Optical Device
                                                 Software
  devices.pci.df1000f7.com  5.2.0.60  APPLIED    Common PCI FC Adapter Device
                                                 Software
对应的补丁要求(仅仅针对5.2版本)
#instfix -a -ivk IY60183
IY60183 Abstract: Open failure on ESS with FC df1000fa adapter
IY60183 Symptom Text:
 Customer sees open failures to FC attached disks across a
 McData or Cisco switch.  I/O hangs.
 across the FC adapter.
—————————-
    Fileset devices.pci.df1000f7.com:5.2.0.42 is applied on the system.
    Fileset devices.pci.df1000fa.rte:5.2.0.1 is applied on the system.
    All filesets for IY60183 were found.
 
#instfix -a -ivk IY62117
IY62117 Abstract: I/O hang after 1 second cable pull and recovery
IY62117 Symptom Text:
 The customer will notice I/Os hanging or I/Os not recovering.
 In the error log, there will be logs on the fcs device
 indicating link may have gone down and may have come up, and
 IOCB timeouts and error logs on fscsi device indicating NPORT
 login timouts, and target reset timeouts, etc.
 —————————-
    Fileset devices.pci.df1000f7.com:5.2.0.43 is applied on the system.
    All filesets for IY62117 were found. 

2、安装agent

先解压agent软件,注意:Agent的软件要求版本最好与存储本身的软件版本一致。 

#unzip AIX_NAVIAGNTCLI_619.zip
进去到解压后的目录
# cd AIX_NAVIAGNTCLI_619
运行
#smit install_latest
安装目录选择[.],表示本目录
软件列表选择需要安装的naviagent,或者是默认全部(因为本目录下只有agent
> NAVIAGENT                                                          ALL
   + 6.19.0.4  Navisphere Disk Array Management Tool (AGENT)           
                                                                       
> NAVICLI                                                            ALL
   + 6.19.0.4  Navisphere Disk Array Management Tool (CLI)             
选择接受许可协议
ACCEPT new license agreements?                      Yes
回车安装
如果安装成功,将会自动在/etc/inittab中增加
naviagent:2:wait:/etc/rc.agent > /dev/console 2>&1
安装完成后,在启动之前,还需要配置agent
#
vi /etc/Navisphere/agent.config
在如下部分增加:
user root              # only on this machine
#user sblue@picasso    # individual user “sblue” on host “picasso”
#user lgreen@hannibal  # individual user “lgreen” on host “hannibal”
user system@192.168.168.190
user system@192.168.168.191

红色部分为需要增加的部分 

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