Rework recabling notes

doc.zih.tu-dresden.de/docs/index.md

@@ -31,10 +31,10 @@ Please also find out the other ways you could contribute in our
 
 ## News
 
-* **2024-05-08** [Maintenance at `Alpha Centauri` - User action required!](jobs_and_resources/alpha_centauri.md#recabling-maintenance)
+* **2024-07-08 --2024-07-12** All HPC systems and services will be unvailable due to a maintenance
+  at the cooling infrastructure
 * **2024-02-05** [New Support Form: HPC Café Questions & Answers](support/support.md#open-qa-sessions)
 ([to the Event](https://tu-dresden.de/zih/qa-sessions-nhr-at-tud))
-* **2024-02-05** [New JupyterHub now available](access/jupyterhub.md)
 
 ## Training and Courses
 

doc.zih.tu-dresden.de/docs/jobs_and_resources/alpha_centauri.md

@@ -5,53 +5,6 @@ The multi-GPU cluster `Alpha Centauri` has been installed for AI-related computa
 The hardware specification is documented on the page
 [HPC Resources](hardware_overview.md#alpha-centauri).
 
-## Recabling Maintenance
-
-!!! warning "User Action Required"
-
-    Please read the following information carefully and follow the provided instructions.
-
-We are in the
-[process of becoming `Alpha Centauri` a Stand-Alone Cluster](#becoming-a-stand-alone-cluster).
-Planned now is the integration of the cluster into the InfiniBand infrastructure
-of the new cluster [`Barnard`](barnard.md).
-
-!!! hint "Maintenance Work"
-
-    On **June 4+5**, we will shut down and migrate `Alpha Centauri` to the Barnard InfiniBand
-    infrastructure.
-
-As consequences,
-
-* BeeGFS will no longer be available,
-* all `Barnard` filesystems (`/home`, `/software`, `/data/horse`, `/data/walrus`) can be
-  used normally.
-
-For your convenience, we already have started migrating your data from `/beegfs` to
-`/data/horse/beegfs`. Starting with the downtime, we again synchronize these data.
-
-!!! hint "User Action Required"
-
-    The less we have to synchronize the faster will be the overall process. So, please clean-up
-    as much as possible as soon as possible.
-
-Important for your work is:
-
-* Do not add terabytes of data to `/beegfs` if you cannot "consume" it before June 4.
-* After the final successful data transfer to `/data/horse/beegfs`, you then have to
-  move it to the normal workspaces on `/data/horse`.
-* Be prepared to adapt your workflows to the new paths.
-
-What happens afterward:
-
-  * complete deletion of all user data in `/beegfs`
-  * complete recabling of the storage nodes (BeeGFS hardware)
-  * software and firmware updates
-  * set-up of a new WEKA filesystem for high I/O demands on the same hardware
-
-In case of any question regarding this maintenance or required action, please do not hesitate to
-contact the [HPC support team](../support/support.md).
-
 ## Becoming a Stand-Alone Cluster
 
 The former HPC system Taurus is partly switched-off and partly split up into separate clusters
@@ -64,29 +17,10 @@ stand-alone cluster with
 
 ### Filesystems
 
-Your new `/home` directory (from `Barnard`) is also your `/home` on `Alpha Centauri`.
-If you have not
-[migrated your `/home` from Taurus to your **new** `/home` on Barnard](barnard.md#data-management-and-data-transfer)
-, please do so as soon as possible!
-
-!!! warning "Current limitations w.r.t. filesystems"
-
-    For now, `Alpha Centauri` will not be integrated in the InfiniBand fabric of Barnard.  With this
-    comes a dire restriction: **the only work filesystems for Alpha Centauri** will be the `/beegfs`
-    filesystems. (`/scratch` and `/lustre/ssd` are not usable any longer.)
-
-    Please, prepare your
-    stage-in/stage-out workflows using our [datamovers](../data_transfer/datamover.md) to enable the
-    work with larger datasets that might be stored on Barnard’s new capacity filesystem
-    `/data/walrus`. The datamover commands are not yet running. Thus, you need to use them from
-    Barnard!
-
-    The new Lustre filesystems, namely `horse` and `walrus`, will be mounted as soon as `Alpha` is
-    recabled (planned for May 2024).
-
-!!! warning "Current limitations w.r.t. workspace management"
-
-    Workspace management commands do not work for `beegfs` yet. (Use them from Taurus!)
+Your new `/home` directory (from `Barnard`) is also your `/home` on `Alpha Centauri`. Since 5th July
+2024, `Alpha Centauri` is fully integrated in the InfiniBand infrastructure of `Barnard`. With that,
+all [filesystems](hardware_overview.md#storage-systems)
+(`/home`, `/software`, `/data/horse`, `/data/walrus`) are available.
 
 ## Usage