From 9bbcbab248e0d6e0f4f6f0cf1612eaa2b1173fed Mon Sep 17 00:00:00 2001 From: Thomas Date: Mon, 2 Dec 2024 10:00:21 +0100 Subject: [PATCH] Update storage-locations.md (#183) --- bih-cluster/docs/storage/storage-locations.md | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/bih-cluster/docs/storage/storage-locations.md b/bih-cluster/docs/storage/storage-locations.md index 26a90e611..612849661 100644 --- a/bih-cluster/docs/storage/storage-locations.md +++ b/bih-cluster/docs/storage/storage-locations.md @@ -128,7 +128,7 @@ $ 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 +137,16 @@ $ 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