qlogic driver, hpux and failover

[Hasan_9]

Hello,
As I know we can use qlogic driver (on proliant) for failover the HBAs. It is not support loadbalancing but will be useful for failover. Now, I am looking for a solution like qlogic driver for HPUX. I want to solution for just failovering HBs without load balancing,. I know that we can do something through the LVM. However I need this solution for a RAW partition, without any filesystem. Please advice.

[Devender Khatana]

Hi,

LVM failover will work even in the case of RAW file system. But for that also to work you should have your physical device visible from two different paths. If the card is allowing such physical connection and your host can see two physical devices than it is possible otherwise not.

HTH,
Devender

[Steven E. Protter]

Shalom Hasan,

You don't need a hardware based solution on HP-UX. Alternate links, also known as pvlinks will do the job.

SEP

[Hasan_9]

Thank you,

I plan to use RAW without LVM.I wnat to install Oracle on this server and use ASM for storage. ASM does not need LVM,so I cannot use pvlinks,Can I?

[Devender Khatana]

Steven,

For alternative links /pv links to work the device should be visible through two paths which is not possible without hardware support. Is it? Atleast I do not think so and hardware support is must for pvlinks to work.

Hasan,

I am not aware of the ASM so can not clarify that. But you infact can use RAW device with LVM as well. Create LVOL in whatever way you want and do not create file system on it. It will work as a raw device.

HTH,
Devender

[Arunvijai_4]

Hi Hasan,

This link may help you for finding Qlogic drivers for HP

http://support.qlogic.com/support/hp_page.html

-Arun

[Hasan_9]

Thank you,

ASM works like a disk without any kind of file system and volume group. I created a LUN on my VA7110. I have two HBA on my server, so I have two pathes to my disk and HP-UX detects them with two different names. I donâ t want to create LVM on these two disks but Iâ d like to have failover for them