解决AIX下识别HDS磁盘阵列多路径问题
公司有台日立HDS AMS2003磁盘阵列，基本还没怎么使用，于是尝试分配了4个500G的LUN给一台测试服务器，都做了冗余，每块盘都有4条路径，分配好后在AIX识别出来了，但每块盘都重复了4次。因为是以前使用的都是IBM的阵列，没发现过有这样的问题，于是发贴求助 新划的磁盘阵列，lspv显示重复了4次http://www.aixchina.net/club/thread-78460-1-1.html 通过查询资料确定了是多路径的问题，需要用到HDLML软件，印象中听日立原厂的工程师提到过，于是QQ联系日立原厂工程师拿到了安装介质及license，并在指导下解决了问题，以下是我根据记录的日志整理的步骤。 1 问题
磁盘阵列使用的是日立HDS AMS2003，RAID之前就做好了，现在我分配
[test2:root:/] lspv
hdisk0 00c48a56795bc09d rootvg active hdisk1 00c48a566bbc5382 rootvg active hdisk2 00c48a562bbcd401 None hdisk3 00c48a562bbe131f None hdisk4 00c48a562bbe139b None hdisk5 00c48a562bbe1422 None hdisk6 00c48a562bbcd401 None hdisk7 00c48a562bbe131f None hdisk8 00c48a562bbe139b None hdisk9 00c48a562bbe1422 None hdisk10 00c48a562bbcd401 None hdisk11 00c48a562bbe131f None hdisk12 00c48a562bbe139b None hdisk13 00c48a562bbe1422 None hdisk14 00c48a562bbcd401 None hdisk15 00c48a562bbe131f None hdisk16 00c48a562bbe139b None hdisk17 00c48a562bbe1422 None [test2:root:/] lspath Enabled hdisk0 sas0 Enabled hdisk1 sas0 Available ses0 sas0 Available ses1 sas0 [test2:root:/] lsdev -Cc disk
hdisk0 Available 03-08-00 SAS Disk Drive hdisk1 Available 03-08-00 SAS Disk Drive
hdisk2 Available 02-01-02 Other FC SCSI Disk Drive hdisk3 Available 02-01-02 Other FC SCSI Disk Drive
了4个500G的LUN给一台AIX服务器使用，但在AIX识别时居然重复了4次
hdisk4 Available 02-01-02 Other FC SCSI Disk Drive hdisk5 Available 02-01-02 Other FC SCSI Disk Drive hdisk6 Available 02-01-02 Other FC SCSI Disk Drive hdisk7 Available 02-01-02 Other FC SCSI Disk Drive hdisk8 Available 02-01-02 Other FC SCSI Disk Drive hdisk9 Available 02-01-02 Other FC SCSI Disk Drive hdisk10 Available 06-01-02 Other FC SCSI Disk Drive hdisk11 Available 06-01-02 Other FC SCSI Disk Drive hdisk12 Available 06-01-02 Other FC SCSI Disk Drive hdisk13 Available 06-01-02 Other FC SCSI Disk Drive hdisk14 Available 06-01-02 Other FC SCSI Disk Drive hdisk15 Available 06-01-02 Other FC SCSI Disk Drive hdisk16 Available 06-01-02 Other FC SCSI Disk Drive hdisk17 Available 06-01-02 Other FC SCSI Disk Drive
2 解决过程
2.1 license
上传license文件HDS HDLM AIX.plk到/var/tmp，并改名为hdlm_license
[test2:root:/] cd /var/tmp [test2:root:/var/tmp] ls
.oracle dpid2.log oradiag_oracle snmpdv3.log
HDS HDLM AIX.plk hostmibd.log slp_srvreg.lock snmpmibd.log aixmibd.log installpbx-2228732-031811161323.log snmpd.log [test2:root:/var/tmp] mv \ [test2:root:/var/tmp] ls
.oracle hdlm_license oradiag_oracle snmpdv3.log aixmibd.log hostmibd.log slp_srvreg.lock snmpmibd.log dpid2.log installpbx-2228732-031811161323.log snmpd.log 2.2 上传HDLM软件镜像文件并加载镜
HDLM软件为一个ISO镜像文件，包含各个平台的HDLM软件，还从来没在AIX系统中加载过ISO文件，于是马上上网查询，终于找到了一个最简单的办法
mount ISO镜像：
#loopmount -i dlmglm_072001.iso -o \ unmount ISO镜像： #fuser -cuk /mnt #unmount /mnt 2.3 安装ODM
[test2:root:/var/tmp] cd /mnt [test2:root:/mnt] ls
Autorun.inf HDLM_AIX HDLM_Solaris HDLM_Windows PSP index.html rr_moved Contents_list.txt HDLM_Linux HDLM_VMware HGLM hcmdslicense2 installux.sh [test2:root:/mnt] cd HDLM_AIX [test2:root:/mnt/HDLM_AIX] ls
.toc AIX_ODM DLManager.mpio.bff hdlmtool netmdm_sample
[test2:root:/mnt/HDLM_AIX] cd AIX_ODM [test2:root:/mnt/HDLM_AIX/AIX_ODM] ls HTC_ODM XP_ODM readme.txt
[test2:root:/mnt/HDLM_AIX/AIX_ODM] cd HTC* [test2:root:/mnt/HDLM_AIX/AIX_ODM/HTC_ODM] ls HTCODM3.tar HTC_readme.txt
[test2:root:/mnt/HDLM_AIX/AIX_ODM/HTC_ODM] mkdir /tmp/hdlm [test2:root:/mnt/HDLM_AIX/AIX_ODM/HTC_ODM] cp *.tar /tmp/hdlm [test2:root:/mnt/HDLM_AIX/AIX_ODM/HTC_ODM] cd /tmp/hdlm [test2:root:/tmp/hdlm] ls HTCODM3.tar
[test2:root:/tmp/hdlm] tar xBpf * [test2:root:/tmp/hdlm] ls
HTCODM3.tar HTC_FC_ODM_5001I HTC_FC_ODM_5005U HTC_FC_ODM_50521U HTC_FC_ODM_50522U HTC_FC_ODM_50523U [test2:root:/tmp/hdlm] smitty installp
通过以上步骤即完成了ODM的安装
[test2:root:/tmp/hdlm] lslpp -l |grep -i dlm [test2:root:/tmp/hdlm] lslpp -l |grep -i hitachi
Hitachi.aix.support.rte 5.0.52.3 COMMITTED AIX Support for Hitachi Disk 2.4 安装HDLM
[test2:root:/tmp/hdlm] cd /mnt [test2:root:/mnt] ls
Autorun.inf HDLM_AIX HDLM_Solaris HDLM_Windows PSP index.html rr_moved Contents_list.txt HDLM_Linux HDLM_VMware HGLM hcmdslicense2 installux.sh [test2:root:/mnt] cd HDLM_AIX
[test2:root:/mnt/HDLM_AIX] smitty installp
通过以上步骤即完成HDLM的安装
[test2:root:/mnt/HDLM_AIX] lslpp -l |grep -i dlm
DLManager.mpio.rte 7.2.0.0 COMMITTED Dynamic Link Manager DLManager.mpio.rte 7.2.0.0 COMMITTED Dynamic Link Manager 2.5 重新识别磁盘
[test2:root:/mnt/HDLM_AIX] cfgmgr [test2:root:/mnt/HDLM_AIX] lsdev -Cc disk hdisk0 Available 03-08-00 SAS Disk Drive hdisk1 Available 03-08-00 SAS Disk Drive
hdisk2 Available 02-01-02 Other FC SCSI Disk Drive hdisk3 Available 02-01-02 Other FC SCSI Disk Drive hdisk4 Available 02-01-02 Other FC SCSI Disk Drive
hdisk5 Available 02-01-02 Other FC SCSI Disk Drive hdisk6 Available 02-01-02 Other FC SCSI Disk Drive hdisk7 Available 02-01-02 Other FC SCSI Disk Drive hdisk8 Available 02-01-02 Other FC SCSI Disk Drive hdisk9 Available 02-01-02 Other FC SCSI Disk Drive hdisk10 Available 06-01-02 Other FC SCSI Disk Drive hdisk11 Available 06-01-02 Other FC SCSI Disk Drive hdisk12 Available 06-01-02 Other FC SCSI Disk Drive hdisk13 Available 06-01-02 Other FC SCSI Disk Drive hdisk14 Available 06-01-02 Other FC SCSI Disk Drive hdisk15 Available 06-01-02 Other FC SCSI Disk Drive hdisk16 Available 06-01-02 Other FC SCSI Disk Drive hdisk17 Available 06-01-02 Other FC SCSI Disk Drive hdisk18 Available 02-01-02 Hitachi Disk Array (Fibre) hdisk19 Available 02-01-02 Hitachi Disk Array (Fibre) hdisk20 Available 02-01-02 Hitachi Disk Array (Fibre) hdisk21 Available 02-01-02 Hitachi Disk Array (Fibre)
可以看到hdisk18至hdisk21已经识别为Hitachi的盘了
[test2:root:/mnt/HDLM_AIX] cd /usr/D*/bin
[test2:root:/usr/DynamicLinkManager/bin] ./dlnkmgr view -lu Product : AMS
SerialNumber : 85013612 LUs : 4
iLU HDevName OSPathID PathID Status 0011 hdisk21 00000 000000 Online 00001 000001 Online 00002 000002 Online
0012 hdisk18 00000 000007 Online 00001 000008 Online 00002 000009 Online 00003 000010 Online
0013 hdisk19 00000 000011 Online 00001 000012 Online 00002 000013 Online 00003 000014 Online
0014 hdisk20 00000 000003 Online 00001 000004 Online 00002 000005 Online 00003 000006 Online
KAPL01001-I The HDLM command completed normally. Operation name = view, completion time = 2012/05/09 15:16:22
2.6 检查HDLM相关信息
2.7 修改磁盘队列深度
[test2:root:/usr/DynamicLinkManager/bin] chdev -l hdisk18 -a queue_depth=8 hdisk18 changed
[test2:root:/usr/DynamicLinkManager/bin] chdev -l hdisk19 -a queue_depth=8 hdisk19 changed
[test2:root:/usr/DynamicLinkManager/bin] r 19=20 chdev -l hdisk20 -a queue_depth=8 hdisk20 changed
[test2:root:/usr/DynamicLinkManager/bin] r 20=21 chdev -l hdisk21 -a queue_depth=8 hdisk21 changed
[test2:root:/usr/DynamicLinkManager/bin] lsdev -Cc disk hdisk0 Available 03-08-00 SAS Disk Drive hdisk1 Available 03-08-00 SAS Disk Drive
hdisk2 Available 02-01-02 Other FC SCSI Disk Drive hdisk3 Available 02-01-02 Other FC SCSI Disk Drive hdisk4 Available 02-01-02 Other FC SCSI Disk Drive hdisk5 Available 02-01-02 Other FC SCSI Disk Drive hdisk6 Available 02-01-02 Other FC SCSI Disk Drive hdisk7 Available 02-01-02 Other FC SCSI Disk Drive hdisk8 Available 02-01-02 Other FC SCSI Disk Drive hdisk9 Available 02-01-02 Other FC SCSI Disk Drive hdisk10 Available 06-01-02 Other FC SCSI Disk Drive hdisk11 Available 06-01-02 Other FC SCSI Disk Drive hdisk12 Available 06-01-02 Other FC SCSI Disk Drive hdisk13 Available 06-01-02 Other FC SCSI Disk Drive hdisk14 Available 06-01-02 Other FC SCSI Disk Drive hdisk15 Available 06-01-02 Other FC SCSI Disk Drive hdisk16 Available 06-01-02 Other FC SCSI Disk Drive hdisk17 Available 06-01-02 Other FC SCSI Disk Drive hdisk18 Available 02-01-02 Hitachi Disk Array (Fibre) hdisk19 Available 02-01-02 Hitachi Disk Array (Fibre) hdisk20 Available 02-01-02 Hitachi Disk Array (Fibre) hdisk21 Available 02-01-02 Hitachi Disk Array (Fibre) [test2:root:/usr/DynamicLinkManager/bin] lspath Enabled hdisk0 sas0 Enabled hdisk1 sas0 Enabled hdisk18 fscsi1 Enabled hdisk18 fscsi1 Enabled hdisk18 fscsi3 Enabled hdisk18 fscsi3 Enabled hdisk19 fscsi1 Enabled hdisk19 fscsi1 Enabled hdisk19 fscsi3