replace nas failed disk

input/projects/cat-toy.md

 description: Laser pointer on two servos with Raspberry Pi Pico W
 parent: projects
 git: https://git.xythobuz.de/thomas/CatToy
+github: https://github.com/xythobuz/CatToy
 date: 2023-04-22
 comments: true
 ---

input/projects/nas_2018.md

 description: FreeNAS / TrueNAS based x86 server
 parent: projects
 date: 2018-03-01
-update: 2023-05-26
+update: 2023-08-31
 comments: true
 ---
 
 
 Installing the new battery was quick and simple.
 The UPS immediately started working again, as I had hoped.
+
+## Failed Disk Replacement (August 2023)
+
+So after the first read errors appeared on two drives over a year ago, one of them finally failed enough for the ZFS pool to show a degraded status.
+
+This was disk 5, the bottom most one in the 3D-printed mount.
+The server already runs hot, with the two drives with read errors reporting the highest temperatures.
+And I suspect my mount doesn't help either.
+
+Nonetheless I simply replaced the disk.
+
+<!--%
+lightgallery([
+    [ "img/nas_hdd_replace_1.jpg", "NAS with old disk still in place" ],
+    [ "img/nas_hdd_replace_2.jpg", "NAS with new disk" ],
+])
+%-->
+
+The filesystem resilvered without any issues and is now running fine again, though I suspect disk 3 will probably face a similar fate soon.