MDI DataSystems, Inc. is pleased to represent Virtual Systems Software Inc. and ShadowDisk/z
new for z/VM and z/Linux    

Please take advantage of our free technical Webinars and product information pages.
 **   New   
z/Linux Developer Software              

New z/VM Software Technology
Virtual Software Systems, Inc.

ShadowDisk/z extends VPARs to z/Linux

Existing VPAR Customers in the TPF World

American Express




The next SPARTA meeting will be held at LabCorp in RTP on Tuesday, Oct 1st

Marna Walle
Senior Technical Staff Member
z/OS System Installation and Upgrade
Z Systems Software Development, IBM Systems

Poughkeepsie, NY  USA

Topic and Abstract

“  There are lot of little functions that have been happening to z/OS over the past several releases to make the z/OS system programmer's life much easier. You probably didn't even know about them, as many of them didn't make headlines or probably Redbooks. If you need them, they could save time for a busy system programmer. The speaker will cover a dozen or so of these z/OS functions “

The meeting will begin at 7:00 PM, food will be available around 6:15 PM.


For details go to our SPARTA

See you there !!


**   New for z/VM
  • Thursday August 19th at 2:00 PM EST.

  • Wednesday September 25th at 11:00 AM EST

  • Thursday September 26th at 3:00 PM EST


Join us for a Q & A Session prior to launching a Trial and a demonstration only.

Click Here to Register

Approx. 30 Mins

Roger Williams, Principal Architect will demonstrate and answer any questions.


ShadowDisk/Z is a software implementation to z/VM which allows multiple Linux virtual machines to transparently share part or all of a virtual Linux file system, without altering the base FS


Key Benefits


        Significantly reduces test/developer disk requirements for multiple-user Linux application testing

        Significantly lessens FS backup/restore requirements, since the DB contains only active FS blocks.

        Databases can be shared among multiple users.

        Utilities provided to query, backup, and restore ShadowDisk/Z databases.

        Provides for the creation of databases which do not require a base FS (NOBASE option).