[stgt] [PATCH 0/5] Add dynamic redirection capability
fujita.tomonori at lab.ntt.co.jp
Wed Sep 22 12:13:24 CEST 2010
On Mon, 20 Sep 2010 18:40:51 -0700
Chandra Seetharaman <sekharan at us.ibm.com> wrote:
> Hello All,
> This is a resend of the patches sent on 09/17/2010:
> which was a resend of the patches sent on 09/01/2010:
> I added changes based on Tomo's suggestions.
> Currently, when a initiator tries to login to a target it can be redirected
> to a different portal. But, Redirect portal is static. i.e the user has to
> define the redirect portal for a target and _all_ the login requests for that
> target will be redirected to the specified portal.
> In order to provide load balancing capability, it will be better to have
> "dynamic redirection". This is envisioned as:
> - user defines an external program that takes initiator's address
> (in ipv4 or ipv6 format)
> - user defines a "RedirectCallback" parameter for a target
> # tgtadm --op update --mode target --tid 1 --name RedirectCallback \
> --value /usr/local/bin/redirect
> - When a initiator tries to login to target tid, user defined program
> will be invoked with the target name and the initiator's ip address
> and it is expected to return a triplet defining the
> redirect portal, in the format of
> example: "10.0.0.51:860:Temporary" or
> - Initiator will be redirected to the portal returned by the user
> defined program.
> Following set of patches provide the feature. Please review and provide your
Looks fine, applied.
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