I wanted to use the Intel SSDs as the boot devices in my replacement server. This meant I needed to migrate back to the 2.5" HDDs.
Prep Work
Ensure that autoexpand is off
- zpool get autoexpand rpool
NAME PROPERTY VALUE SOURCE
rpool autoexpand off default
Adding the 2.5" HDDs
For all the below examples /dev/sda is one of the existing boot drives and /dev/sde and /dev/sdf are the new drives.
Install the hard drives
- Power-off the system first if you don't have hot swap
Copy the partition tables
- sfdisk -d /dev/sda | grep -v last-lba > ssd_part_table
- sed -e '/^label-id:/d' -e 's/,\s*uuid=[-0-9A-F]*//g' ssd_part_table | sfdisk /dev/sde
- sed -e '/^label-id:/d' -e 's/,\s*uuid=[-0-9A-F]*//g' ssd_part_table | sfdisk /dev/sdf
Copy the BIOS data
- dd if=/dev/sda1 of=/dev/sde1
- dd if=/dev/sda1 of=/dev/sdf1
Copy the Boot
- proxmox-boot-tool format /dev/sde2
- proxmox-boot-tool format /dev/sdf2
- proxmox-boot-tool init /dev/sde2
- proxmox-boot-tool init /dev/sdf2
Add to the ZFS pool
- zpool attach rpool ata-INTEL_SSDSC2BX800G4_XXXXXX-part3 /dev/disk/by-id/scsi-XXXXX1-part3
- zpool attach rpool ata-INTEL_SSDSC2BX800G4_XXXXXX-part3 /dev/disk/by-id/scsi-XXXXX2-part3
Hardware Changes
- turn off the server
- remove the drives
- ensure server still boots
Remove old drives from zpool
- zpool status rpool
- zpool detach rpool <new id>
- zpool detach rpool <new id>
Remove old drives from boot
- proxmox-boot-tool status
- proxmox-bool-tool clean
- proxmox-boot-tool status
