Update storage-locations.md

bih-cluster/docs/storage/storage-locations.md

@@ -2,9 +2,6 @@
 This document describes the forth iteration of the file system structure on the BIH HPC cluster.
 It was made necessary because the previous file system was no longer supported by the manufacturer and we since switched to distributed [Ceph](https://ceph.io/en/) storage.
 
-!!! warning "Important"
-    For now, the old, third-generation file system is still mounted at `/fast`. **It will be decommissioned soon, please consult [this document describing the migration process](storage-migration.md)!**
-
 ## Organizational Entities
 There are the following three entities on the cluster:
 
@@ -128,7 +125,7 @@ $ cp important_file.txt /data/cephfs-2/unmirrored/groups/cubi/
 
 ## Technical Implementation
 ### Tier 1
-- Fast & expensive
+- Fast & sparse
 - mounted on `/data/cephfs-1`
 - Currently 12 Nodes with 10 × 14 TB NVME SSD each
     - 1.68 PB raw storage
@@ -137,16 +134,16 @@ $ cp important_file.txt /data/cephfs-2/unmirrored/groups/cubi/
 - For typical CUBI use case 3 to 5 times faster I/O then the old DDN
 - Two more nodes in purchasing process
 - Hardware costs:
-    - One node/chunk: 45.000 € (150 TB)
-    - ca. 300 €/TB
+    - One node/chunk: 50.000 € (150 TB)
+    - ca. 350 €/TB
 
 ### Tier 2
-- Slower but more affordable
+- Slower but much more affordable
 - mounted on `/data/cephfs-2`
 - Currently 10 nodes with 52 HDDs slots and SSD cache (~40 HDDs per node with 16–18 TB capacity)
-    - 6.6 PB raw storage
-    - 5.3 PB erasure coded (EC 8:2)
-    - 4.5 PB usable (85 %; Ceph performance limit)
+    - 8.7 PB raw storage
+    - 7.0 PB erasure coded (EC 8:2)
+    - 5.9 PB usable (85 %; Ceph performance limit)
 - More nodes in purchasing process
 - Hardware costs:
     - ca. 50 € per TB, 100 € mirrored