topic Re: Regarding VCS in Operating System - HP-UX

Regarding VCS

Kavita Poonia — Mon, 28 Apr 2008 03:56:56 GMT

Hello folks,

I just wanted to know that how to find which filesystems are in VCS cluster on a particular node, if that node is in VCS with another node.

Thanks a lot for this !

Re: Regarding VCS

Steven E. Protter — Mon, 28 Apr 2008 06:59:29 GMT

Shalom,

The concept behind a shared filesystem is that the filesystem itself sits on shared storage and it does not matter what node is active and presenting the filesystem to the applications and the rest of the network.

A little more detail might be helpful in assisting you. OS, version, product, model of system, storage, things like that. So I can put away my crystal ball.

SEP

Re: Regarding VCS

Safarali — Mon, 28 Apr 2008 09:32:23 GMT

Hi Kavita
if you want to view the veristas cluster file system

gabconfig -a # Shows the state of the VCS resources required to implement clustering.

The letters returned from gabconfig -a mean the resource is available on a particular node:

a gab driver
b I/O fencing (designed to guarantee data integrity)
d ODM (Oracle Disk Manager)
f CFS (Cluster File System)
h VCS (VERITAS Cluster Server: high availability daemon)
o VCSMM driver (kernel module needed for Oracle and VCS interface)
q QuickLog daemon
v CVM (Cluster Volume Manager)
w vxconfigd (module for cvm)

[edit]With regard to the GAB driver(Port a)
The /etc/gabtab file will contain the number of nodes defined in the cluster. During an initial build, the cluster won't fully start until all nodes are seen. The gabtab is in the following format:

/sbin/gabconfig -c -n2

Regards
Safar

Re: Regarding VCS

Kavita Poonia — Mon, 28 Apr 2008 23:57:41 GMT

Hi Steven,

Thanks a lot for your reply. I have to really study VCS from basics as I do not have much knowledge of VCS. Can I get some document or something like that.

The OS is HP-UX, version is 11.11, model is L3000 and XP array storage.

Thanks n regards,
Kavita

Re: Regarding VCS

Kavita Poonia — Tue, 29 Apr 2008 00:03:18 GMT

Hi Safarali,

Thanks for your inputs but I did not get much from this, the question which I have put up is totally different from this.

If a node is in cluster then all the filesystems mounted on will also be in cluster. Is that so ?

Thanks n regards,
Kavita

Re: Regarding VCS

Safarali — Tue, 29 Apr 2008 05:23:49 GMT

Hi Kavitha
in a perticular node if the node is in active state local file system plus cluster files will be in that node in inactive node only local file system

if both nodes are active active state both node will have full file system

if you have any question please feel free email me

Re: Regarding VCS

Kavita Poonia — Mon, 05 May 2008 15:50:43 GMT

Hi Safarali,

Thanks a lot for ur reply....it was really helpful.....but how to recognize that on active node "what are the cluster files and what are the local files". Please help me out with this.

Thanks n regards,
Kavita