Re: Emulated tape/ECKD disk

2006-05-29 Thread David Boyes
How is Emulated Tape different from the VTAPE product from VSSI (Virtual Software Systems, Inc.)? Unless I totally misunderstand what VTAPE does, it solves a different problem. What I'm asking for is the ability to use existing SCSI tape drives w/o having to rewrite applications not designed

Re: Emulated tape/ECKD disk

2006-05-29 Thread Richard Schuh
David Boyes wrote: How is Emulated Tape different from the VTAPE product from VSSI (Virtual Software Systems, Inc.)? Unless I totally misunderstand what VTAPE does, it solves a different problem. What I'm asking for is the ability to use existing SCSI tape drives w/o having to

z/VM 5.1 CPU Utilization

2006-05-29 Thread Tim Joyce
We are looking at upgrading from z/VM 4.3 to supported z/VM 5.1. Because z/VM 5.1 will not run on our 9672-x27, we will have to upgrade boxes first. We need to choose a new box based on what capacity we will be needing. We are aware of several changestoz/VM between versions (i.e. 64 bit

Re: z/VM 5.1 CPU Utilization

2006-05-29 Thread Richard Schuh
Tim Joyce wrote: We are looking at upgrading from z/VM 4.3 to supported z/VM 5.1. Because z/VM 5.1 will not run on our 9672-x27, we will have to upgrade boxes first. We need to choose a new box based on what capacity we will be needing. We are aware of several changes to z/VM between

Re: z/VM 5.1 CPU Utilization

2006-05-29 Thread Rich Smrcina
I absolutely concur that you should be looking at z/VM 5.2. The detail of release to release performance changes are at: http://www.vm.ibm.com/perf/changes/ With measurements in the performance report, which is a link at the bottom of the page. On Monday 29 May 2006 12:39 pm, Tim Joyce wrote:

Re: Emulated tape/ECKD disk

2006-05-29 Thread Tom Duerbusch
What I'm asking for is the ability to use existing SCSI tape drives w/o having to rewrite applications not designed for them by way of CP emulating a device that VM already supports, much as emulated FBA disk allows unmodified operating systems to run on SCSI-only devices. AFAIK, VTAPE doesn't

Re: z/VM 5.2 and the S disk

2006-05-29 Thread Alan Altmark
On Friday, 05/26/2006 at 02:37 EST, Steve Gentry [EMAIL PROTECTED] wrote: Besides, Chuckie hasn't said anything about it, so I figure I can't get myself into too much trouble. Don't push your luck, pal. can't get myself into too much trouble HA! Do you also walk down dark alleys at