Homogenous System Copy - 1.8Tb ECC 6.0 - ABAP - avoid tape?

We've been performing homogenous system copies for the past 10 years with much success.
When we've had the disk space available, have been able to SAVLIB R3<SID>DATA to *SAVF & then restore from the *SAVF
Avoiding the use of our LTO3 tape for both the BACKUP & RESTORE PORTION cuts hours off the process.
Now with the R3<SID>DATA library hitting about 1.8Tb, the *SAVF hits the maximum size allowable of 1TB and we can no longer use that method.
Has anyone come up with a creative way to do this without tape?
We have an ECC 6.0 upgrade go-live for May'08 and will need to refresh the training <SID> (fully copy of PRD) weekly
The toolset capabilities in a SAN environment on other unmentioned platforms are much more robust where this can be achieved in minutes vs. 10 hrs (or more for both the backup & restore).
Thank you in advance
Doreen (a name from the past)

Thank you --- found documentation and copied below
Setting up virtual tape through 5250 emulation
Here are the basic commands for setting up virtual tape through 5250 emulation:
1. To create a virtual tape device:
CRTDEVTAP DEVD(TAPVRT01) RSRCNAME(*VRT)
2. To vary on the virtual tape device:
VRYCFG CFGOBJ(TAPVRT01) CFGTYPE(DEV) STATUS(ON)
3. To create a virtual tape image catalog:
CRTIMGCLG IMGCLG(backup) DIR('/images/tape/backup') TYPE(TAP) CRTDIR(YES)
4. To create virtual images in the image catalog:
ADDIMGCLGE IMGCLG(BACKUP) FROMFILE(*NEW) TOFILE(VOL001) VOLNAM(VOL001)
Repeat for as many volumes as needed.
5. To load the image catalog on to the virtual device:
LODIMGCLG IMGCLG(backup) DEV(TAPVRT01)
The virtual tape storage is ready for operation:
TAPVRT01 is used as the device (DEV) parameter.

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