分类： 其他UNIX
2013-11-08 15:05:33
HPUX 11.31下更改设备名
在HPUX(特别是HPUX 11.31,不能安装其它多路径软件)下安装ORACLE RAC时，建ASM磁盘组时有时会碰到两个节点上存储映射过来的磁盘盘符不一致，有时是物理路径一致，但聚合后路径不一致，有时甚至物理路径也不一致，此时就需将两个节点上的磁盘盘符修改为一致，上网找了很久，找到一篇HPUX网站上的一篇文档，将实施过程记录下来，以备后查：
1.确认LUN ID与磁盘的对应关系，确认两个节点磁盘的对应关系
首先找到存储映射到主机的磁盘的LUN ID，并将两台主机之间相同LUN ID的磁盘对应关系找到，因为HP 11.31使用的是HP自己的多路径软件，如果存储是HDS的话可以通过HDS提供的工具脚本来找到磁盘和LUN ID的对应关系：
HPUX下Lun对应关系查看方式如下：
请将附件的工具inqraid.hpux以二进制模式ftp上传到主机/tmp目录，执行以下命令
a>cd /tmp
b>chmod +x /tmp/inqraid.hpux
c>ioscan -fun | grep -e rdisk -e rdsk | ./inqraid.hpux -CLI -fx
d>ioscan -fun | grep -e rdisk -e rdsk | ./inqraid.hpux -CLI -fx -fg
-h可以看到更多选项。。。。。。
根据命令的输出结果可以核对出主机设备名与存储设备Lun的对应关系。
如果是EMC或者其它的需要找存储厂商了解，如果找不到办法就只有用最笨的办法，一块盘一块盘的映射来找磁盘和LUN ID的对应关系
以下映射了5块磁盘，存储是EMC CX4-240,在两个节点上磁盘与LUN ID的对应关系如下：
LUNID 节点1磁盘名 节点2磁盘名
lun 36 /dev/rdisk/disk216 /dev/rdisk/disk191
lun 37 /dev/rdisk/disk217 /dev/rdisk/disk192
lun 38 /dev/rdisk/disk218 /dev/rdisk/disk193
lun 39 /dev/rdisk/disk219 /dev/rdisk/disk194
lun 40 /dev/rdisk/disk220 /dev/rdisk/disk195
查看两个节点上聚合后和聚合前磁盘对应关系
节点1 节点2
nodeA#ioscan -m dsf nodeB#ioscan -m dsf
Persistent DSF Legacy DSF(s) Persistent DSF Legacy DSF(s)
=================================== ===================================
/dev/rdisk/disk216 /dev/rdsk/c36t0d0 /dev/rdisk/disk191 /dev/rdsk/c37t0d0
/dev/rdsk/c35t0d0 /dev/rdsk/c36t0d0
/dev/rdsk/c38t0d0 /dev/rdsk/c38t0d0
/dev/rdsk/c37t0d0 /dev/rdsk/c39t0d0
/dev/rdisk/disk217 /dev/rdsk/c36t0d1 /dev/rdisk/disk192 /dev/rdsk/c37t0d1
/dev/rdsk/c35t0d1 /dev/rdsk/c36t0d1
/dev/rdsk/c38t0d1 /dev/rdsk/c38t0d1
/dev/rdsk/c37t0d1 /dev/rdsk/c39t0d1
/dev/rdisk/disk218 /dev/rdsk/c36t0d2 /dev/rdisk/disk193 /dev/rdsk/c37t0d2
/dev/rdsk/c35t0d2 /dev/rdsk/c36t0d2
/dev/rdsk/c38t0d2 /dev/rdsk/c38t0d2
/dev/rdsk/c37t0d2 /dev/rdsk/c39t0d2
/dev/rdisk/disk219 /dev/rdsk/c36t0d3 /dev/rdisk/disk194 /dev/rdsk/c37t0d3
/dev/rdsk/c35t0d3 /dev/rdsk/c36t0d3
/dev/rdsk/c38t0d3 /dev/rdsk/c38t0d3
/dev/rdsk/c37t0d3 /dev/rdsk/c39t0d3
/dev/rdisk/disk220 /dev/rdsk/c35t0d4 /dev/rdisk/disk195 /dev/rdsk/c37t0d4
/dev/rdsk/c36t0d4 /dev/rdsk/c36t0d4
/dev/rdsk/c38t0d4 /dev/rdsk/c38t0d4
/dev/rdsk/c37t0d4 /dev/rdsk/c39t0d4
节点1 节点2
/dev/rdisk/disk216 /dev/rdisk/disk191
/dev/rdisk/disk217 /dev/rdisk/disk192
/dev/rdisk/disk218 /dev/rdisk/disk193
/dev/rdisk/disk219 /dev/rdisk/disk194
/dev/rdisk/disk220 /dev/rdisk/disk195
根据以上情况决定以第一个节点上的盘符为准，将第二个节点上的盘符进行更改：
2.根据磁盘路径信息生成IO初始化的infile文件
查找磁盘聚合后路径：
nodeB#ioscan -fnNkCdisk
Class I H/W Path Driver S/W State H/W Type Description
===========================================================================
disk 191 64000/0xfa00/0x1e esdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/disk/disk191 /dev/rdisk/disk191
disk 192 64000/0xfa00/0x1f esdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/disk/disk192 /dev/rdisk/disk192
disk 193 64000/0xfa00/0x20 esdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/disk/disk193 /dev/rdisk/disk193
disk 194 64000/0xfa00/0x21 esdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/disk/disk194 /dev/rdisk/disk194
disk 195 64000/0xfa00/0x22 esdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/disk/disk195 /dev/rdisk/disk195
.....
查找磁盘聚合前路径:
nodeB#ioscan -fnkCdisk
Class I H/W Path Driver S/W State H/W Type Description
============================================================================
disk 28 0/3/1/0.1.21.0.0.0.0 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d0 /dev/rdsk/c37t0d0
disk 149 0/3/1/0.1.21.0.0.0.1 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d1 /dev/rdsk/c37t0d1
disk 150 0/3/1/0.1.21.0.0.0.2 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d2 /dev/rdsk/c37t0d2
disk 151 0/3/1/0.1.21.0.0.0.3 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d3 /dev/rdsk/c37t0d3
disk 152 0/3/1/0.1.21.0.0.0.4 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d4 /dev/rdsk/c37t0d4
disk 153 0/3/1/0.1.21.0.0.0.5 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d5 /dev/rdsk/c37t0d5
disk 154 0/3/1/0.1.21.0.0.0.6 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d6 /dev/rdsk/c37t0d6
disk 155 0/3/1/0.1.21.0.0.0.7 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t0d7 /dev/rdsk/c37t0d7
disk 156 0/3/1/0.1.21.0.0.1.0 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t1d0 /dev/rdsk/c37t1d0
disk 157 0/3/1/0.1.21.0.0.1.1 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t1d1 /dev/rdsk/c37t1d1
disk 158 0/3/1/0.1.21.0.0.1.2 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c37t1d2 /dev/rdsk/c37t1d2
....
disk 174 0/7/1/0.1.23.0.0.1.4 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c38t1d4 /dev/rdsk/c38t1d4
disk 175 0/7/1/0.1.23.0.0.1.5 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c38t1d5 /dev/rdsk/c38t1d5
disk 176 0/7/1/0.1.23.0.0.1.6 sdisk CLAIMED DEVICE DGC CX4-240WDR5
/dev/dsk/c38t1d6 /dev/rdsk/c38t1d6
生成infile文件
# cd /tmp
# ioscan -kNf | grep ^disk | awk '{printf "%s %s %s\n",$3,$1,$2}' > infile
# ioscan -kf | grep ^disk | awk '{printf "%s %s %s\n",$3,$1,$2}' >> infile
修改生成的infile文件,以64000/0xfa00/0x1e开始的行，除了需要修改设备名的，其它的都删除掉:
# vi infile
nodeBtmp/hpdisk#vi infile
"infile" 109 lines, 3144 characters
64000/0xfa00/0x1e disk 191
64000/0xfa00/0x1f disk 192
64000/0xfa00/0x20 disk 193
64000/0xfa00/0x21 disk 194
64000/0xfa00/0x22 disk 195
0/0/2/1.0.16 disk 3
0/3/1/0.1.21.0.0.0.0 disk 28
……
0/3/1/0.1.22.0.0.0.1 disk 118
0/3/1/0.1.22.0.0.0.2 disk 119
0/3/1/0.1.22.0.0.0.3 disk 120
0/3/1/0.1.22.0.0.0.4 disk 121
将阴影部分修改成以下内容:
64000/0xfa00/0x1e disk 216
64000/0xfa00/0x1f disk 217
64000/0xfa00/0x20 disk 218
64000/0xfa00/0x21 disk 219
64000/0xfa00/0x22 disk 220
0/0/2/1.0.16 disk 3
0/3/1/0.1.21.0.0.0.0 disk 28
……
0/3/1/0.1.22.0.0.0.1 disk 118
0/3/1/0.1.22.0.0.0.2 disk 119
0/3/1/0.1.22.0.0.0.3 disk 120
0/3/1/0.1.22.0.0.0.4 disk 121
3.初始化修改后设备文件
执行生成的文件：
nodeB #ioinit -f ./infile
ioinit: Input is identical to kernel, line ignored
Input line 2: 0/0/2/1.0.16 disk 3
……
ioinit: Input is identical to kernel, line ignored
Input line 83: 0/7/1/0.1.23.0.0.1.6 disk 176
4.删除之前旧的设备
nodeB#rmsf /dev/disk/disk191 /dev/rdisk/disk191
nodeB#rmsf /dev/disk/disk192 /dev/rdisk/disk192
nodeB#rmsf /dev/disk/disk193 /dev/rdisk/disk193
nodeB#rmsf /dev/disk/disk194 /dev/rdisk/disk194
nodeB#rmsf /dev/disk/disk195 /dev/rdisk/disk195
5.验证查询
nodeBtmp#ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk1 /dev/rdsk/c34t0d0
/dev/rdsk/c35t0d0
/dev/rdisk/disk41 /dev/rdsk/c34t0d2
/dev/rdsk/c35t0d2
.....
/dev/rdisk/disk216 /dev/rdsk/c37t0d0
/dev/rdsk/c36t0d0
/dev/rdsk/c38t0d0
/dev/rdsk/c39t0d0
/dev/rdisk/disk217 /dev/rdsk/c37t0d2
/dev/rdsk/c36t0d2
/dev/rdsk/c38t0d2
/dev/rdsk/c39t0d2
/dev/rdisk/disk218 /dev/rdsk/c37t0d4
/dev/rdsk/c36t0d4
/dev/rdsk/c38t0d4
/dev/rdsk/c39t0d4
/dev/rdisk/disk219 /dev/rdsk/c37t0d6
/dev/rdsk/c36t0d6
/dev/rdsk/c38t0d6
/dev/rdsk/c39t0d6
/dev/rdisk/disk220 /dev/rdsk/c37t1d0
/dev/rdsk/c36t1d0
/dev/rdsk/c38t1d0
/dev/rdsk/c39t1d0
