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yoyohimhim's avatar
yoyohimhim
Level 3
15 years ago

How to change dmp disk sequence

Hi,    I'm configuring the SFHA. I assigned some LUNS from storage to my two hosts.  But I found in /dev/vx/dmp, the disks's sequence are not same. For example : One host1: arcx3455gb...
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  • Gaurav_S's avatar
    Gaurav_S
    15 years ago
    Hello,

    What is SF version you are using ? This was taken care pretty good in 5.0MP3, if you use 5.0MP3, you can run following command on both the nodes

    # vxddladm set namingscheme=ebn/osn persistence=yes use_avid=yes   (select Enclosure or OS based naming depending in ur choice)

    In above scenario, use_avid switch will assign the DA names depending on the LUN ID which is consistent across the nodes, so all the nodes should get same name for each disk.

    In case you are using any older version, you need to do manipulations with /etc/vx/disk.info file but it could result bad & you can see some issues.. this won't be recommended...

    Gaurav
Gaurav_S's avatar
Gaurav_S
Moderator
15 years ago
Hello,

What is SF version you are using ? This was taken care pretty good in 5.0MP3, if you use 5.0MP3, you can run following command on both the nodes

# vxddladm set namingscheme=ebn/osn persistence=yes use_avid=yes   (select Enclosure or OS based naming depending in ur choice)

In above scenario, use_avid switch will assign the DA names depending on the LUN ID which is consistent across the nodes, so all the nodes should get same name for each disk.

In case you are using any older version, you need to do manipulations with /etc/vx/disk.info file but it could result bad & you can see some issues.. this won't be recommended...

Gaurav