recovery_(mergerfs,crashplan).md

Recovery w/ MergerFS & CrashPlan

This assumes a setup similar to what is described here.

Full drive recovery

Initial state

• 4 Pooled Drives
  • /mnt/data0
  • /mnt/data1
  • /mnt/data2
  • /mnt/data3
• Pool mountpoint: /mnt/pool
• Failed drive: /mnt/data1
• New drive: /mnt/data4

Restore Procedure

1. Remove failed drive from mergerfs pool
   $ sudo xattr -w user.mergerfs.srcmounts -/mnt/data1 /mnt/pool/.mergerfs
2. Format disk4
3. Add data4 to fstab
4. Mount
   $ sudo mount /mnt/data4
5. Add new drive to mergerfs pool
   $ sudo xattr -w user.mergerfs.srcmounts +/mnt/data4 /mnt/pool/.mergerfs
6. Open the CrashPlan GUI
7. Select Restore from the left panel
8. Click on most recent and change the date/time to be before the drive died
9. Navigate in the file viewer to /mnt/data1 and select the directory
10. Click Desktop till a folder (Desktop) appears. Click on (Desktop) and select /mnt/data4
11. Click Restore
12. Wait for CrashPlan to restore all files