topic Re: Service Guard & Secure path in Operating System - HP-UX

Service Guard & Secure path

Goran Kubelka — Tue, 20 Sep 2005 08:55:58 GMT

Dear All,

Is it mandatory to have installed SecurePath for HP-UX on cluster nodes before installing Service Guard?
Both nodes of cluster should have two FC card each connected to srorage in NSPoF configuration.
Is it possible to build HA solution without SecurePath for HP-UX installed on cluster nodes?

Regards,
Goran

Re: Service Guard & Secure path

Mahesh Kumar Malik — Tue, 20 Sep 2005 09:05:21 GMT

Hi Goran

1. Securepath is recommended when you have dual FC paths. It will take care of path failure and provide dyanamic load balancing

2. You can have HA solution without SP. In such case LVM primary and alternate paths have to be defined.

As indicated above SP helps in load balancing and thus better IO throughput.

Regards
Mahesh

Re: Service Guard & Secure path

Hakan Aribas — Tue, 20 Sep 2005 09:20:34 GMT

Securepath is a failover/loadbalancing solution for dual FC paths. It is not necessary for MC/SG.

Re: Service Guard & Secure path

Luk Vandenbussche — Wed, 21 Sep 2005 00:47:10 GMT

Secure path is required in an environment with MC/Serviceguard.
I does'nt matter it you install it before or after MC/Serviceguard. It must be installed before you configure the cluster

Re: Service Guard & Secure path

Thayanidhi — Wed, 21 Sep 2005 03:21:15 GMT

Hi,
MCSG and SP are two different areas. SP needed in case your storage requires SP (for example EVA3K & EVA5K SP is mandatory). You can have MCSG with or witout SP. When configuring VGs without SP, make sure you create VGs with alternate links in all nodes.

Note: For EVA4K,6K,8K SP is optional.
For HP VA also SP is optional.

Regds
TT