ssa disk in rootvg

ssa disk in rootvg

Post by Arne » Thu, 10 Jun 1999 04:00:00



Hi AIX-people!

Anyone familiar to mirroring rootvg on one scsi-disk and one ssa-disk??

I believe this is possible, but is it possible to boot on the ssa-disk??

Does this depend on type of ssa card or ssa disk??

Thanks!

 
 
 

ssa disk in rootvg

Post by BEggert » Thu, 10 Jun 1999 04:00:00


To determine if you can boot from another drive enter the following command;

bootinfo -B hdiskX

Where X is the physical volume.  Any number returned other then 1 means no, you
cannot boot from this drive.

 
 
 

ssa disk in rootvg

Post by Arne » Fri, 11 Jun 1999 04:00:00


Thanks for the command!

I have checked several RS servers with ssa card, and it looks as if it depends on
the type of ssa card:

  DEVICE            LOCATION          DESCRIPTION

  ssa0              00-05             SSA Enhanced Adapter

        Part Number.................032H3975
        Serial Number...............f6895556
        EC Level....................0000E48439
        Manufacturer................IBM053
        ROS Level and ID............3202
        Loadable Microcode Level....01
        Device Driver Level.........00
        Displayable Message.........SSA-ADAPTER
        Device Specific.(Z0)........DRAM=000
============> OK!

root</> # lscfg -vl ssa0
  DEVICE            LOCATION          DESCRIPTION

  ssa0              04-02             IBM SSA RAID Adapter (14104500)

        Part Number.................032H3832
        FRU Number..................032H3832
        Serial Number...............g7036153
        EC Level....................0000E48619
        Manufacturer................IBM053
        ROS Level and ID............3700
        Loadable Microcode Level....02
        Device Driver Level.........00
        Displayable Message.........SSA-ADAPTER
        Device Specific.(Z0)........DRAM=008
        Device Specific.(Z1)........CACHE=0

============> NOT OK!

Arne Sodal
Norway


> To determine if you can boot from another drive enter the following command;

> bootinfo -B hdiskX

> Where X is the physical volume.  Any number returned other then 1 means no, you
> cannot boot from this drive.

 
 
 

1. SSA disk in rootvg causes boot problems

We have added an SSA disk into our rootvg, which worked fine, until
we rebooted the system.

At boot time, the system was unable to find the SSA disk the moment
that the rootvg was activated.
Once booted, we were able to activate the SSA disk.

Do I have to add some additional commands in an rc script to bring up
these SSA disks?

Hope someone has a solution to this problem,

Alain De Witte

AIX system Administrator

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