In the 'What we offer' box was a link titled 'Systems Management software' that went to IBM Systems Management. At the top, one's mouse could hover over 'Products', then over 'Systems & servers', and select System x (xSeries). On Thursday, J(11:00am PST), one could go to IBM page and find a menu. (The bottom of page 74 User Guide makes it seem like the _BOOT_HD.NOZ file is valid in 'as a base option for PC DOS 7.1 only', although I suspect that might have been meaning to distinguish from other software on the disk, and not trying to say that PC DOS 7.0 didn't have the option.) Just keep in mind that mixing versions of DOS executables can often easily result in complaints about being run from a different DOS version. However, since any differences are likely meant to be bug fixes or improvements, it would make more sense to replace some files from PC DOS 7 with the PC DOS 7.1 files, such as the boot files. Therefore, I wouldn't necessarily recommend IBM PC DOS 7.1 over PC DOS 7 or PC DOS 2000 as an operating system to be content with. (The bundled User Guide PDF file said the same thing.) Actually it seems it does not contain all of the software that one would expect to find in IBM PC DOS 7.0 or PC DOS 2000, so either this is a limited release of IBM PC DOS 7.1 (which it doesn't say), or this is the full IBM PC DOS 7.1 release but IBM PC DOS 7.1 doesn't have all of the same features as earlier versions of the PC DOS software. On the IBM ServerGuide Scripting Toolkit download page, the 'Feature overview' said 'The ServerGuide Scripting Toolkit includes IBM PC DOS 7.1'.

IBM PC DOS 7.1 has been made available for download.

Dos 7.1 boot disk img file