APW attempts to create a partition map with the specified criteria. When asked to create some number of partitions, APW will fail to suggest a map only if there are not as many duos connected to I/O drawers as the requested number of hard partitions. So, if APW will not create a partition map, power-off the hardware using AMU or the MBM console, and add additional I/O cables. Restart APW or refresh the partition map within APW. APW may be able to create the partition map once the I/O cables are added.
Make sure the file format is supported by APW. The APW reads AMU saved offline configurations in addition to its own partition map format. When APW loads a partition map, it reads only the partitions and assignments in the map. When the partitions and assignments in the map are applied to the current hardware, there may be problems. For example, some partitions may be without an I/O connection. The APW will request confirmation that the invalid map should be loaded. There is no harm in loading the map, you can always return to the Work with Partition Maps dialog box and load a different map before any changes are made to the hardware configuration. If you cannot see a partition map saved earlier, try selecting the All Files filter since the file may have been saved with the wrong file type. Also, an existing file might have been overwritten.
Problems saving a partition map should be uncommon. More problems are likely selecting the filename to save. If the Partition Maps filter is selected, APW will append the partition map extension (pmf) to the filename you type.