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hp rx4640 mapping SCSI hardware path with controler

 
BERTRAND_7
Frequent Advisor

hp rx4640 mapping SCSI hardware path with controler


In 2006, we integrated a plateform in a cluster MC/Serviceguard with 2 rx4640.
At that time, we had the follwing mapping between hardware path and SCSI controler to access external disks in an MSA30 bay (one in each server cabinet for RAID1 mirroring) :

Slot 7 (dual SCSI card for MSA30 disks) :
0/2/1/0 ==> c4tydz
0/2/1/1 ==> c5tydz
Slot 8 (dual SCSI card for MSA30 disks) :
0/5/1/0 ==> c8tydz
0/5/1/1 ==> c9tydz
Slot 4 (dual SCSI card for tape and ultrium drives) :
0/3/2/0 ==> c6tydz
0/3/2/1 ==> c7tydz

In case of disaster, our customer asked us to build a new platform with only one rx4640 and an associated MSA30 to replace one of the 2 cabinet (rx4640+MSA30) if necessary.
We ordered exactly the same hardware but the mapping is now different :

Slot 7 (dual SCSI card for MSA30 disks) :
0/2/1/0 ==> c3tydz
0/2/1/1 ==> c4tydz
Slot 8 (dual SCSI card for MSA30 disks) :
0/5/1/0 ==> c5tydz
0/5/1/1 ==> c6tydz
Slot 4 (dual SCSI card for tape and ultrium drives) :
0/3/2/0 ==> c7tydz
0/3/2/1 ==> c8tydz

I would like to change the mapping according to the platform currently in production so that the controler definition will match exactly.

Is there anyway to change the mapping ? Any HP-UX command ?
Any syggestion is welcome.
1 REPLY 1
Torsten.
Acclaimed Contributor

Re: hp rx4640 mapping SCSI hardware path with controler

I would not changing anything - you need to do this every time you restore the system.

Instead I would only use vgimport for example.

But if you really want, search this forum for ioinit - you will get a lot of hits.

Hope this helps!
Regards
Torsten.

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