You could use ASE's disk mirroring feature to move the contents of QA1_data05 onto a new device thus allowing you to drop QA1_data05.
- sp_configure 'disable disk mirror',0 (static setting so you have to bounce ASE)
- disk mirror QA1_data05 onto a new device (use serial writes) (depending on size of QA1_data05 and speed of your disks this could take anywhere from 1 to 10 minutes)
- disk unmirror (leave new device as primary; QA1_data05 becomes the mirror/secondary and is dropped by the disk unmirror command; QA1_data05 is now removed from sysdevices and ASE knows nothing about it)
- sp_configure 'disable disk mirror',1 (static setting so you have to bounce ASE)