上次弄小机，出现了关于这个问题的情况，今天看到几个贴有相关的内容，整理了下转了。
#powermt display dev=all
这个是常用命令，通过它你可以看到以下信息
Pseudo name=hdiskpower1 (你在主机上看到的power盘)
CLARiiON ID=CK200031****** [HR SG](存储上的组别)
Logical device ID=60060167EB0C000022A83E3908C3D711 [LUN 1](逻辑单元号)
state=alive; (状态不错^_^)
policy=CLAROpt;(中档产品)
()priority=0;
queued-IOs=0
Owner: default=SP A, current=SP A(当前控制器spA)
==============================================================================
---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
0 fscsi0 hdisk10 SP B1 active alive 0 0
1 fscsi1 hdisk17 SP B0 active alive 0 0
1 fscsi1 hdisk24 SP A1 active alive 0 0
0 fscsi0 hdisk3 SP A0 active alive 0 0
呵呵，当然，这里面还有很多信息，双光纤卡，四个通道，一个power盘映射4个hdisk。
下面看看这个hdiskpower1的信息
命令2：
#lspv #在这里看到主机识别到的所有存储上的盘，对应的vg。 hdiskpower0 005f2c6aa2851229 vg1 hdiskpower1 005f2c6aa284d3ce vg1 hdiskpower2 005f2c7aa2c86899 vg2 hdiskpower3 005f2c6aa30fbe31 vg2 hdiskpower4 005f2c7aa2c69692 vg3 active hdiskpower5 005f2c6aa309468d vg4 active hdiskpower6 005f2c6aa3101de2 vg4 active
看看大小：(total pps 就是了，看看hdiskpower是100G)
# lspv hdiskpower1 PHYSICAL VOLUME: hdiskpower1 VOLUME GROUP: h85vg1 PV IDENTIFIER: 005f2c6aa284d3ce VG IDENTIFIER 005f2c6a00004c000000010eb353ee73 PV STATE: active STALE PARTITIONS: 0 ALLOCATABLE: yes PP SIZE: 128 megabyte(s) LOGICAL VOLUMES: 1 TOTAL PPs: 799 (102272 megabytes) VG DESCRIPTORS: 1 FREE PPs: 0 (0 megabytes) HOT SPARE: no USED PPs: 799 (102272 megabytes) FREE DISTRIBUTION: 00..00..00..00..00 USED DISTRIBUTION: 160..160..159..160..160
同样的方法就可以查到主机识别到的所有存储lun的大小了。
查看当前磁盘path、所属端口、I/O数量
AIX命令：
# /usr/DynamicLinkManager/bin/dlnkmgr view -path
HP命令：
# /opt/DynamicLinkManager/bin/dlnkmgr view -path
正常情况，IO-Errors为0，path状态为online。
示例：
Paths:000039 OnlinePaths:000039 PathStatus IO-Count IO-Errors Online 3768105389 465 PathID PathName DskName iLU ChaPort Status Type IO-Count IO-Errors DNum HDevName 000000 08.4F.0000000000010100.0000 HITACHI .OPEN-V .**8** 0102 1H Online Own 1005 0 0 dlmfdrv0 000001 08.5F.0000000000010100.0000 HITACHI .OPEN-V .**8** 0102 2H Online Own 1007 0 0 dlmfdrv0 000002 08.4F.0000000000010100.0001 HITACHI .OPEN-V .**8** 010A 1H Online Own 167 0 0 dlmfdrv1 000003 08.5F.0000000000010100.0001 HITACHI .OPEN-V .**8** 010A 2H Online Own 147 0 0 dlmfdrv1 000004 08.4F.0000000000010100.0002 HITACHI .OPEN-V .**8** 0112 1H Online Own 167 0 0 dlmfdrv2 000005 08.5F.0000000000010100.0002 HITACHI .OPEN-V .**8** 0112 2H Online Own 147 0 0 dlmfdrv2 000006 08.4F.0000000000011100.0000 HITACHI .DF600F .5805 0045 0A Online Own 334773831 5 0 dlmfdrv3 000007 08.5F.0000000000011100.0000 HITACHI .DF600F .5805 0045 1A Online Non 18833 4 0 dlmfdrv3 000008 08.4F.0000000000011100.0001 HITACHI .DF600F .5805 0046 0A Online Non 9 4 0 dlmfdrv4 000009 08.5F.0000000000011100.0001 HITACHI .DF600F .5805 0046 1A Online Own 333935682 4 0 dlmfdrv4 000010 08.4F.0000000000011100.0002 HITACHI .DF600F .5805 0047 0A Online Own 333843076 6 0 dlmfdrv5 000011 08.5F.0000000000011100.0002 HITACHI .DF600F .5805 0047 1A Online Non 18363 5 0 dlmfdrv5 000012 08.4F.0000000000011100.0003 HITACHI .DF600F .5805 0048 0A Online Non 9 4 0 dlmfdrv6 000013 08.5F.0000000000011100.0003 HITACHI .DF600F .5805 0048 1A Online Own 334118777 4 0 dlmfdrv6 000014 08.4F.0000000000011100.0004 HITACHI .DF600F .5805 0049 0A Online Own 333988197 17 0 dlmfdrv7 000015 08.5F.0000000000011100.0004 HITACHI .DF600F .5805 0049 1A Online Non 18323 16 0 dlmfdrv7 000016 08.4F.0000000000011100.0005 HITACHI .DF600F .5805 0050 0A Online Non 20 2 0 dlmfdrv8 000017 08.5F.0000000000011100.0005 HITACHI .DF600F .5805 0050 1A Online Own 333522437 2 0 dlmfdrv8 000018 08.4F.0000000000011100.0006 HITACHI .DF600F .5805 0051 0A Online Own 333802253 3 0 dlmfdrv9 000019 08.5F.0000000000011100.0006 HITACHI .DF600F .5805 0051 1A Online Non 18371 2 0 dlmfdrv9 000020 08.4F.0000000000011100.0007 HITACHI .DF600F .5805 0052 0A Online Non 9 2 0 dlmfdrv10 000021 08.5F.0000000000011100.0007 HITACHI .DF600F .5805 0052 1A Online Own 333605177 2 0 dlmfdrv10 000022 08.4F.0000000000011100.0008 HITACHI .DF600F .5805 0053 0A Online Own 333806938 3 0 dlmfdrv11 000023 08.5F.0000000000011100.0008 HITACHI .DF600F .5805 0053 1A Online Non 18356 2 0 dlmfdrv11 000024 08.4F.0000000000011100.0009 HITACHI .DF600F .5805 0054 0A Online Non 9 6 0 dlmfdrv12 000025 08.5F.0000000000011100.0009 HITACHI .DF600F .5805 0054 1A Online Own 334283006 6 0 dlmfdrv12 000026 08.5F.0000000000010100.0003 HITACHI .OPEN-9*5 .**8** 023F 2H Online Own 170 0 0 dlmfdrv13 000027 08.4F.0000000000010100.0003 HITACHI .OPEN-9*5 .**8** 023F 1H Online Own 157 0 0 dlmfdrv13 000028 08.5F.0000000000010100.0004 HITACHI .OPEN-9*5 .**8** 0262 2H Online Own 167 0 0 dlmfdrv14 000029 08.4F.0000000000010100.0004 HITACHI .OPEN-9*5 .**8** 0262 1H Online Own 147 0 0 dlmfdrv14 000030 08.5F.0000000000010100.0005 HITACHI .OPEN-9*5 .**8** 0287 2H Online Own 167 0 0 dlmfdrv15 000031 08.4F.0000000000010100.0005 HITACHI .OPEN-9*5 .**8** 0287 1H Online Own 147 0 0 dlmfdrv15 000032 08.5F.0000000000010100.0006 HITACHI .OPEN-9*5 .**8** 02A3 2H Online Own 167 0 0 dlmfdrv16 000033 08.4F.0000000000010100.0006 HITACHI .OPEN-9*5 .**8** 02A3 1H Online Own 147 0 0 dlmfdrv16 KAPL01001-I The HDLM command completed normally. Operation name = view
EMC：
检查PowerPath版本及注册码
#powermt version #powermt check_registration
2、检查链路状态
#powermt display
所有链路summary =optimal，没有Dead
Symmetrix logical device count=0 CLARiiON logical device count=13 ============================================================================== ----- Host Bus Adapters --------- ------ I/O Paths ----- ------ Stats ------ ### HW Path Summary Total Dead IO/Sec Q-IOs Errors ============================================================================== 12 0/5/1/0.100.30.0.0 optimal 13 0 - 0 0 13 0/4/2/0.100.30.0.0 optimal 13 0 - 0 0 14 0/5/1/0.100.94.0.0 optimal 13 0 - 0 0 15 0/4/2/0.100.94.0.0 optimal 13 0 - 0 0
检查每块盘的状态
# powermt display dev=all
所有磁盘mode 和State均为alive
CLARiiON ID=***** [MIS]
Logical device ID=******* [LUN 16]
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
==============================================================================
12 0/5/1/0.100.30.0.0.1.3 c12t1d3 SP A0 active alive 0 0
13 0/4/2/0.100.30.0.0.1.3 c13t1d3 SP A0 active alive 0 0
14 0/5/1/0.100.94.0.0.1.3 c14t1d3 SP B0 active alive 0 0
15 0/4/2/0.100.94.0.0.1.3 c15t1d3 SP B0 active alive 0 0
检查是否有Dead链路
# powermt display dev=all | grep dead
如果有Dead列，说明出现问题。
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
12 0/5/1/0.100.30.0.0.1.3 c12t1d3 SP A0 active dead 0 0
----------------------------------------------------------------------------------------------
AIX newjcka 1 7 00F7F5484C00 IBM,9179-MHB IBM,0206F548R
# powermt display paths #查看链路 Symmetrix logical device count=41 ============================================================================== ----- Host Bus Adapters --------- ------ Storage System ----- - I/O Paths - ### HW Path ID Interface Total Dead ============================================================================== 0 fscsi0 000290103631 FA 10cA 40 0 10000000C9CEFEB2 0 fscsi0 000290103631 FA 9bA 1 0 1 fscsi4 000290103631 FA 8bA 1 0 10000000C9CFBBA6 1 fscsi4 000290103631 FA 7cA 40 0
# uname -auM
AIX newjckb 1 7 00F7F53D4C00 IBM,9179-MHB IBM,0206F53DR
# powermt display paths Symmetrix logical device count=41 ============================================================================== ----- Host Bus Adapters --------- ------ Storage System ----- - I/O Paths - ### HW Path ID Interface Total Dead ============================================================================== 0 fscsi2 000290103631 FA 10cA 40 0 10000000C9CFD0FC 0 fscsi2 000290103631 FA 9cB 1 0 1 fscsi4 000290103631 FA 8cB 1 0 10000000C9CF8636 1 fscsi4 000290103631 FA 7cA 40 0
1778:1790
./symmask -sid 631 -wwn 10000000C9CEFEB2 -dir 10c -p 0 add devs 1778:1790 ./symmask -sid 631 -wwn 10000000C9CFBBA6 -dir 7c -p 0 add devs 1778:1790 ./symmask -sid 631 -wwn 10000000C9CFD0FC -dir 10c -p 0 add devs 1778:1790 ./symmask -sid 631 -wwn 10000000C9CF8636 -dir 7c -p 0 add devs 1778:1790