Fix links and minor cleanup

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

@@ -100,7 +100,7 @@ storages or long-term archives.
 
 For about one month, the new cluster Barnard, and the old cluster Taurus
 will run side-by-side - both with their respective filesystems. We provide a comprehensive
-[description of the migration to Barnard](migration_to_barnard.md).
+[description of the migration to Barnard](barnard.md).
 
 <! --
 The follwing figure provides a graphical overview of the overall process (red: user action
@@ -191,8 +191,7 @@ The cluster **Romeo** is a general purpose cluster by NEC based on AMD Rome CPUs
     - 2 x AMD EPYC CPU 7702 (64 cores) @ 2.0 GHz, Multithreading available
     - 512 GB RAM
     - 200 GB local memory on SSD at `/tmp`
-- Hostnames: `i[7001-7190].romeo.hpc.tu-dresden.de` (after
-  [recabling phase](architecture_2023.md#migration-phase)])
+- Hostnames: `i[7001-7190].romeo.hpc.tu-dresden.de`
 - Login nodes: `login[1-2].romeo.hpc.tu-dresden.de`
 - Further information on the usage is documented on the site [CPU Cluster Romeo](romeo.md)
 
@@ -229,8 +228,7 @@ architecture.
 - Configured as one single node
 - 48 TB RAM (usable: 47 TB - one TB is used for cache coherence protocols)
 - 370 TB of fast NVME storage available at `/nvme/<projectname>`
-- Hostname: `smp8.julia.hpc.tu-dresden.de` (after
-  [recabling phase](architecture_2023.md#migration-phase)])
+- Hostname: `smp8.julia.hpc.tu-dresden.de`
 - Further information on the usage is documented on the site [SMP System Julia](julia.md)
 
 ??? note "Maintenance from November 27 to December 12"
@@ -266,12 +264,11 @@ The cluster **Power9** by IBM is based on Power9 CPUs and provides NVIDIA V100 G
     - 256 GB RAM DDR4 2666 MHz
     - 6 x NVIDIA VOLTA V100 with 32 GB HBM2
     - NVLINK bandwidth 150 GB/s between GPUs and host
-- Hostnames: `ml[1-29].power9.hpc.tu-dresden.de` (after
-  [recabling phase](architecture_2023.md#migration-phase)])
+- Hostnames: `ml[1-29].power9.hpc.tu-dresden.de` (after recabling phase; expected January '24)
 - Login nodes: `login[1-2].power9.hpc.tu-dresden.de`
 - Further information on the usage is documented on the site [GPU Cluster Power9](power9.md)
 
-??? note "Maintenance from November 27 to December 12"
+??? note "Maintenance"
 
     The recabling will take place from November 27 to December 12. After the maintenance, the Power9
     system reappears as a stand-alone cluster that can be reached via
@@ -283,6 +280,6 @@ The cluster **Power9** by IBM is based on Power9 CPUs and provides NVIDIA V100 G
     `/home` on Barnard](barnard.md#data-management-and-data-transfer).
 
     The old work filesystems `/lustre/scratch` and `/lustre/ssd will` be turned off on January 1
-    2024 for good (no data access afterwards!). The new work filesystem available on the Power9
-    system will be `/horse`. Please
+    2024 for good (no data access afterwards!). The only work filesystem available on the Power9
+    system will be `/beegfs`. Please
     [migrate your working data to `/horse`](barnard.md#data-migration-to-new-filesystems).