- **status**: review --> fixed
- **Comment**:
changeset: 7499:99a37563582e
branch: opensaf-5.0.x
parent: 7495:e1db8be03336
user: Anders Widell <a...@..com>
date: Fri Apr 15 08:50:21 2016 +0200
summary: osaf: Update README files for supporting more than two system
controllers [#79]
changeset: 7500:dfd21c949cc4
parent: 7498:b3343623238a
user: Anders Widell <a...@..com>
date: Fri Apr 15 08:50:21 2016 +0200
summary: osaf: Update README files for supporting more than two system
controllers [#79]
[staging:99a375]
[staging:dfd21c]
---
** [tickets:#79] Support for spare system controllers - 2N + spare SCs**
**Status:** fixed
**Milestone:** 5.0.RC2
**Labels:** #439 #1170
**Created:** Mon May 13, 2013 04:33 AM UTC by Nagendra Kumar
**Last Updated:** Mon Apr 11, 2016 10:07 PM UTC
**Owner:** Anders Widell
**Attachments:**
- [Support for Spare System Controllers in
OpenSAF.odt](https://sourceforge.net/p/opensaf/tickets/79/attachment/Support%20for%20Spare%20System%20Controllers%20in%20OpenSAF.odt)
(70.9 kB; application/vnd.oasis.opendocument.text)
-
[spare_sc.diff](https://sourceforge.net/p/opensaf/tickets/79/attachment/spare_sc.diff)
(116.6 kB; text/x-patch)
-
[spare_sc_uml_test.diff](https://sourceforge.net/p/opensaf/tickets/79/attachment/spare_sc_uml_test.diff)
(2.6 kB; text/x-patch)
Migrated from http://devel.opensaf.org/ticket/2101
This ticket and subsequent ticket
https://sourceforge.net/p/opensaf/tickets/1170/ is to support
the following two use scenarios
a) flexible deployment based on special hardware requirements for more than two
system controllers
b) multiple nodes failing simultaneously in a cattle-type of deployment
The following is the scope of this ticket:
* It will be possible to configure nodes termed as spares (to the system
controller group of nodes).
* If one of the system controller nodes dies, another "spare" system contoller
node (if there is any available) will be get an assignment (active / standby).
This assignment happens without requiring the spare system controller node to
reboot.
We can add support for configuring more than two system controllers. One node
will get an active assignment, another node will get a standby assignment, and
the rest of the system controller nodes will have no assignment for their
OpenSAF 2N SUs (they will be "spares").
For locking/unlocking the middleware 2N SU, refer the patch floated for
http://devel.opensaf.org/ticket/2023
Ticket #1170 will be supported subsequent to this ticket.
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