From bd4167bee2888a0b25c471ca589d4490d4a4feae Mon Sep 17 00:00:00 2001
From: Pjotr Prins
Date: Sat, 3 Jan 2026 07:24:31 +0100
Subject: moose

---
 topics/octopus/moosefs/moosefs-maintenance.gmi |  6 +++++-
 topics/octopus/octopussy-needs-love.gmi        | 26 ++++++++++++++++----------
 2 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/topics/octopus/moosefs/moosefs-maintenance.gmi b/topics/octopus/moosefs/moosefs-maintenance.gmi
index 786bbb8..1032cde 100644
--- a/topics/octopus/moosefs/moosefs-maintenance.gmi
+++ b/topics/octopus/moosefs/moosefs-maintenance.gmi
@@ -13,9 +13,13 @@ We should use different ports than lizard. Lizard uses 9419-24 by default. So le
 * 9520 for chunk server connections
 * 9521 for mount connections
 * 9522 for slow HDD chunks (HDD)
-* 9523 for matching SSD chunks (SSD)
+* 9523 for replicating SSD chunks (SSD)
 * 9524 for fast non-redundant SSD chunks (FAST)
 
+## Topology
+
+Moosefs uses topology to decide where to fetch data. We can host the slow spinning HDD drives in a 'distant' location, so that data is fetched last.
+
 ## Disks
 
 Some disks are slower than others. To test we can do:
diff --git a/topics/octopus/octopussy-needs-love.gmi b/topics/octopus/octopussy-needs-love.gmi
index 8b59c4d..8c6315d 100644
--- a/topics/octopus/octopussy-needs-love.gmi
+++ b/topics/octopus/octopussy-needs-love.gmi
@@ -28,13 +28,8 @@ All the other nodes are for compute. O1 and O4 will be the last nodes to remain
 # Tasks
 
 * [X] Create moosefs package
-* [ ] Install moosefs
-* [ ] Upgrade bios (tuxes)
-* - [ ] tux05
-* - [ ] tux06
-* - [ ] tux07
-* - [ ] tux08
-* - [ ] tux09
+* [X] Install moosefs
+* [X] Upgrade bios (all tuxes)
 * [ ] Migrate lizardfs nodes to moosefs (one at a time)
 * [ ] Add server monitoring with sheepdog
 * [ ] Upgrade Debian
@@ -250,11 +245,22 @@ This way we will deploy all nodes centrally. One aspect is that we don't need dy
 O4 is going to be the backup head node. It will act as a compute node too, until we need it as the head node. O4 is currently not on the slurm queue.
 
 * [X] Update guix on O1
-* [+] Install guix moosefs
-* [ ] Start moosefs master on O3
-* [ ] Start moosefs shadow on O4
+* [X] Install guix moosefs
+* [X] Start moosefs master on O3
+* [X] Start moosefs metalogger on O4
+* [ ] Check moosefs logging facilities
+* [ ] See if we can mark drives so it is easier to track them
+* [ ] Test broken (?) /dev/sdf on octopus03
 
 We can start moose master on O3. We should use different ports than lizard. Lizard uses 9419-24 by default. So let's use
 9519- ports. See
 
 => moosefs/moosefs-maintenance.gmi
+
+# P2
+
+Penguin2 has 80T of spinning disk storage. We are going to use that for redundancy. Basically these disks get a moosefs goal of HDD 'slow' and we'll configure them on a remote rack - so chunks get fetched from local chunk servers (first). This will gain us 40T of immediate storage. Adding more spinning disks will free up SSDs further.
+
+* [X] P2 Update Guix
+* [X] Install moosefs
+* [ ] Create HDD chunk server
-- 
cgit 1.4.1