Multipath in HP-UX

HP-UX、Linux、Tru64 UNIX、NonStop、OpenVMS、Windows Server等,数据中心、虚拟化方案等

版主: xyevolve

1. 本版是定位于惠普软件系统及解决方案的技术讨论区。
2. 本版鼓励发帖共同讨论技术问题,不鼓励站内信件私下交流,独知知不如众知知。
3. 本版允许转贴或引用他人的作品,但必须声明原作者信息。
4. 本版禁止发表出售、求购、或其他非技术讨论等帖子。
5. 本版禁止灌水,包括但不限于任何与所讨论主题无关的回复,无意义字符,直接复制其他回复等。
6. 本站附件禁止用于商业目的,请在下载后24小时内删除,本站不对其造成的结果负任何责任。
帖子: 3880
注册时间: 2010年 12月 28日 21:17 星期二

Multipath in HP-UX

帖子 MUDBOY » 2016年 12月 7日 10:55 星期三


A simple example would be a SCSI disk connected to two SCSI controllers on the same computer or a disk connected to two Fibre Channel ports. Should one controller, port or switch fail, the operating system can route I/O through the remaining controller transparently to the application, with no changes visible to the applications, other than perhaps incremental latency.

Features of Multipath:

* Dynamic load balancing
* Traffic shaping
* Automatic path management
* Dynamic reconfiguration

How to find multipath on hp ux ??


# strings /etc/lvmtab
# vgdisplay -v vgname

2.Native Multipathing (11.31) (agile device name)

# ioscan -m dsf h/w address

Examble : ioscan -m dsf /dev/rdisk/disk586
Persistent DSF Legacy DSF(s)
/dev/rdisk/disk586 /dev/rdsk/c15t0d0

# scsimgr -D lun_map (which will give the number of paths to that lun)

# ioscan -kfnNC (will show the persistent device file in 11.31)

# evainfo (EVA) and xpinfo (XP) - commands will show the multipaths for luns.
提倡分享之精神, 技术问题请在相关版面直接发帖, 站内短信恕不答复.
I don't answer private messages on topics of public interest, because it defeats the whole purpose of a message board.