XL1201 Known Working Disks

Note: After formatting a disk to 1280-byte blocks on Genera, make sure to hard power cycle reboot the computer before trying to use it for a FEP file system or any other purpose.

From my own trials, these drives work:

  • Seagate Barracuda ST336918N - 36G drive (up to 4,096 bytes/sector)
  • Seagate ST39173N - 9G drive
  • Seagate Cheetah ST19101W - Tall 9G drive

Per David K. Schmidt on June 23, 2016:

  • Seagate 18 GB drives known to work:
    • Cheetah X15 ST318451LW
    • ST118273N/W
    • ST318416N/W
    • ST318417N/W
    • ST318418N/W

It seems that Seagate's later SCSI drives will only format to 528 byte maximum block sizes per the PDF manuals. For example:

  • Seagate Cheetah X15 drives:
    • ST318451 - max 2,064 bytes/sector
    • ST318452 - max 704 bytes/sector
    • ST318453 - max 528 bytes/sector
  • Seagate Cheetah 10K drives:
    • ST336607LW - max 528 bytes/sector
    • ST336752LW - max 704 bytes/sector

However, others I have found that may work:

  • Seagate Cheetah ST336704LW - max 4,096
  • Seagate Cheetah ST336706LW - max 4,096
  • Seagate Cheetah ST318404LW - max 4,096
  • Seagate Barracuda ST336938LW - max 4,096

Note that when using these wide drives, use an active terminator.

Douglas Fields

Writing LISP and Haskell since 1990