[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [linux-lvm] Multipath without round-robin?



Decided mdadm would not do the job for you?

mdadm --create -f -lmp -n2 -x1 /dev/md0 /dev/<channela> /dev/<channelb>

This works in fail over mode by explicitly telling md to treat one as a
spare.


On Thu, 2004-06-10 at 13:33, Jedi/Sector One wrote:
>   Hello.
>   
>   I'm trying to get multipath working with LVM2 (2.6.7-rc2-udm2 kernel) with
> an LSI storage array.
> 
>   The array has two FC controllers, HBAs are two identical Qlogic 2340.
>   
>   On the array, "preferred" controllers are assigned to each LUN.
>   
>   Unfortunately, it looks like dm-multipath always does round-robin load
> balancing.
> 
>   The result is that the array fills up the (SANtricity) error log with
> messages like "LUN was accessed through the wrong controller".
> 
>   Is there any way to keep failover abilities without load balancing?
>   
>   Best regards,
>   
>        -Frank.
>        
> _______________________________________________
> linux-lvm mailing list
> linux-lvm redhat com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]