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标题: EMC LUN ON HP UNIX盘符不一致的解决方法 [打印本页]

作者: dbadoudou 时间: 2014-8-21 08:31
标题: EMC LUN ON HP UNIX盘符不一致的解决方法

EMC LUN ON HP UNIX盘符不一致的解决方法

1.同一块LUN；找出对应盘符的唯一ID，并找出其WWN
cd /dev/rdisk
节点1
# ls -l /dev/rdisk/disk161
crw-r--r-- 1 root    sys       13 0x000030 Aug 20 13:53 /dev/rdisk/disk161
节点2
# ls -l /dev/rdisk/disk162
crw-r--r-- 1 root    sys       13 0x000034 Aug 20 13:53 /dev/rdisk/disk162

2.创建新的盘符，并设置成双节点一致
cd /dev/rdisk
节点1
mknod /dev/rdisk/disk163 c 13 0x000030 <=唯一的
节点2
mknod /dev/rdisk/disk163 c 13 0x000034 <=唯一的

3.验证盘符是否一致
节点1
# ioscan -funN -C disk
Class    I  H/W Path  Driver S/W State H/W Type    Description
===================================================================
disk 161  64000/0xfa00/0x30  esdisk CLAIMED    DEVICE    DGC    RAID 5
                  /dev/disk/disk161 /dev/rdisk/disk163

节点2
# ioscan -funN -C disk
Class    I  H/W Path  Driver S/W State H/W Type    Description
===================================================================
disk 162  64000/0xfa00/0x34  esdisk CLAIMED    DEVICE    DGC    RAID 5
                  /dev/disk/disk162 /dev/rdisk/disk163
##注意：2个节点的/dev/disk是有所有不同的，一个是disk161,一个是disk162，所以如果需要使用/dev/disk一定要注意哦。##

3-1.使用powermt验证
命令： powermt display dev=all
节点1
# powermt display dev=all
Pseudo name=disk163
VNX ID=FCN00114900102 [collection_sg]
Logical device ID=6006016045D02E00FA8E1E687A26E411 [cdc_hp]
state=alive; policy=CLAROpt; queued-IOs=0
Owner: default=SP A, current=SP A    Array failover mode: 4
==============================================================================
--------------- Host --------------- - Stor -  -- I/O Path -- -- Stats ---
###  HW Path             I/O Paths Interf.  Mode    State Q-IOs Errors
==============================================================================
1 0/6/0/0/0/0/2/0/0/1.0x5006016c47200986.0x7000000000000 c9t0d7    SP B4 active alive    0    0
1 0/6/0/0/0/0/2/0/0/1.0x5006016447200986.0x7000000000000 c7t0d7    SP A4 active alive    0    0
0 0/6/0/0/0/0/2/0/0/0.0x5006016847200986.0x7000000000000 c5t0d7    SP B0 active alive    0    0
0 0/6/0/0/0/0/2/0/0/0.0x5006016047200986.0x7000000000000 c3t0d7    SP A0 active alive    0    0
节点2
# powermt display dev=all
Pseudo name=disk163
VNX ID=FCN00114900102 [collection_sg]
Logical device ID=6006016045D02E00FA8E1E687A26E411 [cdc_hp]
state=alive; policy=CLAROpt; queued-IOs=0
Owner: default=SP A, current=SP A    Array failover mode: 4
==============================================================================
--------------- Host --------------- - Stor -  -- I/O Path -- -- Stats ---
###  HW Path             I/O Paths Interf.  Mode    State Q-IOs Errors
==============================================================================
1 0/6/0/0/0/0/2/0/0/1.0x5006016c47200986.0x7000000000000 c9t0d7    SP B4 active alive    0    0
1 0/6/0/0/0/0/2/0/0/1.0x5006016447200986.0x7000000000000 c7t0d7    SP A4 active alive    0    0
0 0/6/0/0/0/0/2/0/0/0.0x5006016847200986.0x7000000000000 c5t0d7    SP B0 active alive    0    0
0 0/6/0/0/0/0/2/0/0/0.0x5006016047200986.0x7000000000000 c3t0d7    SP A0 active alive    0    0

##注意：千万不要使用这个命令insf -e，此命令会继续使用系统默认的重命名，如果重命名后盘符就又不一致了。##

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