From 4b4eb96758506d57df1ced65d18789e11589bfff Mon Sep 17 00:00:00 2001 From: Mathias Kuhring Date: Wed, 4 Dec 2024 15:55:43 +0100 Subject: [PATCH] Update storage-locations.md --- bih-cluster/docs/storage/storage-locations.md | 20 ++++++++----------- 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/bih-cluster/docs/storage/storage-locations.md b/bih-cluster/docs/storage/storage-locations.md index 395d999f..309fec1f 100644 --- a/bih-cluster/docs/storage/storage-locations.md +++ b/bih-cluster/docs/storage/storage-locations.md @@ -141,16 +141,12 @@ $ cp important_file.txt /data/cephfs-2/unmirrored/groups/cubi/ ### Tier 2 - 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) - - 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 +- Mounted on /data/cephfs-2, comes in two flavours + - /data/cephfs-2/mirrored + - /data/cephfs-2/unmirrored +- Currently 24 nodes in two clusters in two different fire compartments. Each node with ~40 HDDs each 16–18 TB capacity +- Current useable capacity 10+ PB (mirrored nad unmirror combined) - Hardware costs: - - ca. 50 € per TB, 100 € mirrored - - small chunk extension possible - -### Tier 2 mirror -- Similar in hardware and size (10 nodes, 6+ PB) -- Stored in separate fire compartment. + - ca. 50 € per TB unmirrored + - ca. 100 € per TB mirrored + - small chunk extension possible