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* Release Notes of Red Hat 4.6
@ 2007-11-16  8:25 Domenico Viggiani
  2007-11-16  8:39 ` Tore Anderson
  0 siblings, 1 reply; 2+ messages in thread
From: Domenico Viggiani @ 2007-11-16  8:25 UTC (permalink / raw)
  To: 'device-mapper development'

I was reading release Notes of Red Hat 4.6 (just released):

* implicit active-active failover (ALUA) using dm-multipath on EMC Clariion
storage is now supported

Can some good soul explain me the consequences of this?

Thanks in advance?
--
DV

^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: Release Notes of Red Hat 4.6
  2007-11-16  8:25 Release Notes of Red Hat 4.6 Domenico Viggiani
@ 2007-11-16  8:39 ` Tore Anderson
  0 siblings, 0 replies; 2+ messages in thread
From: Tore Anderson @ 2007-11-16  8:39 UTC (permalink / raw)
  To: device-mapper development

* Domenico Viggiani

> I was reading release Notes of Red Hat 4.6 (just released):
> 
> * implicit active-active failover (ALUA) using dm-multipath on EMC
> Clariion storage is now supported
> 
> Can some good soul explain me the consequences of this?

I wrote a bit about ALUA and how it works on the CLARiiON yesterday:

http://thread.gmane.org/gmane.linux.kernel.device-mapper.devel/4366/focus=4435

I'm not completely sure how it behaves when using the ALUA hardware
handler compared to using no hardware handler, though.  Maybe Hannes
Reinecke can elaborate a bit on that.

Regards
-- 
Tore Anderson

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2007-11-16  8:25 Release Notes of Red Hat 4.6 Domenico Viggiani
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