Caktus Proxmox Server

Replacing a bad hard drive

This server has 4 bays, only 3 active disks. You can use the spare to load a new drive before removing the old one.

Install the new drive.
SSH to the server:
```
ssh root@172.20.1.40
```
To identify the new disk (e.g., /dev/sdd), run dmesg and look for the "Attached scsi generic" message. lsblk (list block devices) will also provide useful summary information.
Run a short smartctl test on the device:
```
smartctl -t short /dev/sdd
```
Look for the test results in a couple minutes with:
```
smartctl -a /dev/sdd
```
Identify the disk to be replaced (e.g., from the serial number in emails from Proxmox)
Follow the instructions in the Proxmox Admin Guide for Changing a failed bootable drive, for example:
```
sgdisk /dev/sda -R /dev/sdd
sgdisk -G /dev/sdd
```
Identify the new partition to add to the pool:
```
ls -l /dev/disk/by-id/|grep sdd
```

Replace the disk:

zpool replace -f rpool /dev/disk/by-id/ata-WDC_WD2003FYYS-02W0B0_WD-WMAY00155507-part3 /dev/disk/by-id/ata-WDC_WD30EFAX-68JH4N1_WD-WXB2DA19JT8Z-part3

Identify the serial number of the disk to be removed (WMAY00155507 in the above example), and remove it from the server. Serial numbers are visible through the drive cage on the front of the server.

Last update: 2024-05-08