For you who have too small capacity handling hard disk drives bigger than around 30 GB. Disk Manager ver. 9.57 is a boot-floppy-disk that makes it possible to find the hard disk drive as your computer are complaining that the hard disk drive is not to be found.
I had a bios 4.51Pg in my computer and my hard disk drive at 61.4 GB was not to be found.
You can either try to flash your bios to make the hard disk drive work. Otherwise you will find the instructions how to use disk manager boot diskett on www.storage.ibm.com/hdd/support look for "Disk Manager 2000 boot diskett". If you are uncertain of what model that is compatible with this version, there is a textfile in the "data"-directory in this included file where you can check with your model at home