On Sat, Nov 15, 2008 at 00:46, Richard Elling <[EMAIL PROTECTED]> wrote:
> Adam Leventhal wrote:
>>
>> On Fri, Nov 14, 2008 at 10:48:25PM +0100, Mattias Pantzare wrote:
>>
>>>
>>> That is _not_ active-active, that is active-passive.
>>>
>>> If you have a active-active system I can access the same data via both
>>> controllers at the same time. I can't if it works like you just
>>> described. You can't call it active-active just because different
>>> volumes are controlled by different controllers. Most active-passive
>>> RAID controllers can do that.
>>>
>>> The data sheet talks about active-active clusters, how does that work?
>>>
>>
>> What the Sun Storage 7000 Series does would more accurately be described
>> as
>> dual active-passive.
>>
>
> This is ambiguous in the cluster market.  It is common to describe
> HA clusters where each node can be offering services concurrently,
> as active/active, even though the services themselves are active/passive.
> This is to appease folks who feel that idle secondary servers are a bad
> thing.

But this product is not in the cluster market. It is in the storage market.

By your definition virtually all dual controller RAID boxes are active/active.

You should talk to Veritas so that they can change all their documentation...

Active/active and active/passive has a real technical meaning, don't
let marketing destroy that!
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