[stgt] [PATCH 0/2] add multiple boot parameter parsers support

[Florian Haas]

On 10/06/2009 08:02 AM, FUJITA Tomonori wrote:
>> Of course, ideally that would mean that you extend tgtadm too, so
>> individual targets can be bound to specific portals. :)
> 
> We would but let's leave it alone until someone who wants it for a
> sane reason shows up.
> 

I don't know if this counts as "a sane reason", but we build highly
available, DRBD-replicated iSCSI storage targets. It is a common use
case to have two separate targets, one per each node in a 2-node
cluster, with both targets converging on the surviving node should one
node fail. It is likewise common to configure one portal address each
(i.e., a virtual cluster IP) for each target. However, due to the fact
that TGT can't bind specific targets to individual portal addresses,
this actually means that a specific target is always visible on all
configured IP addresses, which is awkward.

Just as an aside, LIO does support multiple target portals, hence I like
to utilize it for that purpose.

Cheers,
Florian

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