DANSE Sever Upgrade Plan

Phase I

DONE

• Copy all of danse2 backup disk to danse1 4T disk
• Image danse1 4T disk onto second 4T disk
• Remove two main drives from danse 2 but keep for a while in case of problems
• Insert new 250GB WD BLue SSD 3D NAND SATA SD as boot drive into danse2 and transfer imaged 4T drive from danse1 (matched serial number with github notes) to danse 2 as sdb
• Install Ubuntu 18.04 LTS, released on April 26, 2018 with end of life April 2023, on sda of danse2
  • Used minimal install option (no games etc?)
  • installed ssh server
  • used apt-get update and upgrade … also ran upgrade from GUI when asked
  • set ssh config file to not allow root login
  • Installed ufw firewall and enabled only ssh. Not sure we want to keep that?

TODO

• Verify contents of 3^rd disk on danse2 (sdc)
• Once copied what is needed from sdc of danse2 remove that drive
• Migrate all services one by one from danse1 to danse2

Phase II - tentative

• Shut down danse1
• Transfer danse2 drives to danse1
• Optional:
  • Upgrade memory on danse1
  • Replace 4T disk with new one during transfer to danse1

Phase III - backup plan

• Crashplan with Andrew is only stopgap need a versioned backup to guard against corruption of data/hacking/ransomware etc.

Phase IV - tentative

• Install mirrors
  • Potential locations/funding - estimate <$3000 each
    • UMD or UD (NIST)
    • Bristol/Diamond?