为设备 wwid 加别名
在我们通过 mulpath –ll 命令查看设备时,会看到如下内容
#mulpath -ll
Mpath1 (3600507630bc16d0000000000003705) dm-9 IBM,2107900
[size=150G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=2][acve]
\_ 3:0:0:1 sdc 8:32 [acve][ready]
\_ 4:0:0:1 sdo 8:224 [acve][ready]
……
Mpath2 (3600507630bc16d0000000000004205) dm-10 IBM,2107900
[size=1.0G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=2][acve]
\_ 3:0:0:11 sdm 8:192 [acve][ready]
\_ 4:0:0:11 sdy 65:128 [acve][ready]
采用系统自己命名的设备名(绿色字体部分)不便于阅读,我们需要把它改成便于阅读的内容
使之观其名知其意,如 asm01。
此时就需要修改 mulpath 的配置文件/etc/mulpath.conf,(操作之前请备份此配置文件)在文件
中添加别名,如:(修改红色部分)
# Here a LUN from IBM storage with wwid 3600507630efe32000000000000120a
# is given an alias of "IBM-1750" and will appear as "IBM-1750
#(3600507630efe32000000000000120a)", when "mulpath -l(l)" is invoked.
mulpaths {
mulpath {
wwid 3600507630bc16d0000000000003205
alias ocr01
}
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