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2nd fibre channel need and configure alternate link

LIM KIAN MENG
Occasional Contributor

2nd fibre channel need and configure alternate link

Hi,

Currently, we do have one Hitachi Storage system and one hp rx7600 with HP-UX 11.23 version. At the moment, only one fc adapter (HP Tachyon XL2 Fibre Channel Mass Storage Adapter)was installed in rx7600.

In order to create a redundancy link to HDS, we prepare a create a HDD alternate link by plug into addition fc into system.

As my concern, how can i make it happen with the minimum risks on it. Of course, i know i have to create the alternate HDD link one by one after the fc adapter is installed in rx7600.

Is anyone do this before?
4 REPLIES
Torsten.
Acclaimed Contributor

Re: 2nd fibre channel need and configure alternate link

Hi,

once the HBA is installed and connected, you may run "vgscan" in preview mode to get an idea.

Hope this helps!
Regards
Torsten.

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LIM KIAN MENG
Occasional Contributor

Re: 2nd fibre channel need and configure alternate link

Hi, Torsten

Currently, there is one fc connected to SAN storage. My concern is after the 2nd card be installed, all of HDD link will be appeared while i am doing ioscan -funC disk. By this time, i can install those HDD drive manually as ioscan -H

Do these action might corrupted the existing files system ?
Torsten.
Acclaimed Contributor

Re: 2nd fibre channel need and configure alternate link

All new device files for the new HBA will be created while the server boots up.
The "old" device files will not change.
The system will create another path to the existing LUNs only.

Hope this helps!
Regards
Torsten.

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those who understand binary, and those who don't.

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Torsten.
Acclaimed Contributor

Re: 2nd fibre channel need and configure alternate link

Once the second path to the array is available, you should alter the HBAs for primary links, like this

HBA A primary for vg01, HBA B alternate
HBA B primary for vg02, HBA A alternate
...

This will increase your performance

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!