From 84f4dc28f2aa6e4f716a8fdccf3421067df0ba44 Mon Sep 17 00:00:00 2001
From: Iustin Pop <iustin@google.com>
Date: Mon, 29 Sep 2008 16:18:30 +0000
Subject: [PATCH] Add an 'index' of design documents

This will be an overview document, enumerating the changes without going
into details and pointing to the actual documents.

Reviewed-by: ultrotter
---
 doc/design-2.0-index.rst | 58 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 doc/design-2.0-index.rst

diff --git a/doc/design-2.0-index.rst b/doc/design-2.0-index.rst
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index 000000000..32960837e
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+Ganeti 2.0 design documents
+===========================
+
+
+The 2.x versions of Ganeti will constitute a rewrite of the 'core'
+architecture, plus some additional features (however 2.0 is geared
+toward the core changes).
+
+Core changes
+------------
+
+The main changes will be switching from a per-process model to a
+daemon based model, where the individual gnt-* commands will be
+clients that talk to this daemon (see the design-2.0-master-daemon
+document). This will allow us to get rid of the global cluster lock
+for most operations, having instead a per-object lock (see
+design-2.0-granular-locking). Also, the daemon will be able to queue
+jobs, and this will allow the invidual clients to submit jobs without
+waiting for them to finish, and also see the result of old requests
+(see design-2.0-job-queue).
+
+Beside these major changes, another 'core' change but that will not be
+as visible to the users will be changing the model of object attribute
+storage, and separate that into namespaces (such that an Xen PVM
+instance will not have the Xen HVM parameters). This will allow future
+flexibility in defining additional parameters.
+
+
+Functionality changes
+---------------------
+
+The disk storage will receive some changes, and will also remove
+support for the drbd7 and md disk types. See the
+design-2.0-disk-changes document.
+
+The configuration storage will be changed, with the effect that more
+data will be available on the nodes for access from outside ganeti
+(e.g. from shell scripts) and that nodes will get slightly more
+awareness of the cluster configuration.
+
+The RAPI will enable modify operations (beside the read-only queries
+that are available today), so in effect almost all the operations
+available today via the ``gnt-*`` commands will be available via the
+remote API.
+
+A change in the hypervisor support area will be that we will support
+multiple hypervisors in parallel in the same cluster, so one could run
+Xen HVM side-by-side with Xen PVM on the same cluster.
+
+New features
+------------
+
+There will be a number of minor feature enhancements targeted to
+either 2.0 or subsequent 2.x releases:
+
+- multiple disks, with custom properties (read-only/read-write, exportable,
+  etc.)
+- multiple NICs
-- 
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