Assuming we are talking about SME7
Support for NTFS is not included in RHEL so a kernel recompile will be required.
You end up with a non standard SME7 server.
Writing to NTFS partions from Linux is asking for problems, so any drive you use, will probably have data errors once you return it to a native Windows machine.
Maybe a FAT32 formatted hard disk is a much easier option, unless you can get Microsoft to add ext3 into Windows.
Dave