Actually this is one of a suite of non-comprehensive benchmark programs I
ran back in the day to compare various instructions. It was useful to
compare pcm's against blue boxes.
I posted the assembler source because I was hoping someone would welcome
the opportunity to demonstrate their
Ivica -
All of the FTP's are to users on one of two IP address that are
within our firewall. My version of FTP (3A0) on z/VM 3.1 does not
have the passvie ability.
I always get connected and signed in and I can do a CWD to the user's
directory. The -5 only happens on a PUT filename .
Today it
Please look at the logs on the ftp server. I bet there are clues there.
Jim Hughes
603-271-5586
Its kind of fun to do the impossible. (Walt Disney)
=-Original Message-
=From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED]
On
=Behalf Of Fran Hensler
Hi,
We are looking for a virtual tape system as part of a project to replace
our ageing tape drives.
Does anybody have any experience with VTAPE from Virtual Software
Systems that they would like to share?
Gary
Gary L. Shiminsky
VM/VSE Senior Systems Programmer
Office of Information
It works great - easy to install and maintain. Our users love it.
Christine Brogan - TPF/VM Systems Support
Information Technology Services Americas
Phone: 623-505-5366, Cell: 623-512-5883, IBM tieline 273-4647
Email: [EMAIL PROTECTED]
The end of fear is where we begin - the moment we decided
Without having ever run VTAPE here... perhaps you could better define your
requirements?
Are you saying that you want to eliminate all tape drives? If so, how
will you back up your DASD (upon which I believe that VTAPE writes its
virtual tapes)? Unless you have mirrored DASD, with the mirror
The disk based VTAPE systems are really neat, but are expensive compared to a
used IBM VTS tape based solution. Obviously this is a new vs used situation.
Tom Duerbusch
THD Consulting
Law of Dinner Table Attendance
Cats must attend all meals when anything good is served.
Mike Walter
We also use and love VTAPE, primarily for its write to the bit bucket
function for TPF logging. Note that VTAPE is a CP mod and requires
extra steps when installing new VM releases or applying CP maintenance.
The developers have always been extremely helpful and responsive with
any issues or
Are there any installations of VTape where Z/VSE Guests are using
virtual tape drives and virtual tapes?
If yes, is your installation running DYNAM/T as well? How are you
handling scratch tapes, etc
Jim Hughes
603-271-5586
Its kind of fun to do the impossible.
We would be using the VTAPE product as part of the solution. Most of
the backups would be going to the VTAPE library and then the VTAPE
library would be backed up to newer, higher capacity tape
drives/cartridges.
Gary
Gary L. Shiminsky
VM/VSE Senior Systems Programmer
Office of Information
Unless you have a very small system, the VSSI product probably will not
be a good choice for your backups. For example, our dasd farm, excluding
the 2000+ disks that house the TPF test system base disks, is 576 disks
strong. A full backup of the non-TPF disks is in the neighborhood of
200-300 GB.
Hello Jim,
I am getting into the VTAPE situation with CA-EPIC. I have been
using the VTAPE part for the many backups.
I will have more for you this week.
Ed Martin
Aultman Health Foundation
330-588-4723
ext 40441
-Original Message-
From: The IBM z/VM Operating System
Thanks Ed.
There is concern about the communication between VTape and Dynam/T.
Do they need to communicate?
I am not familiar with EPIC.
Jim Hughes
603-271-5586
Its kind of fun to do the impossible. (Walt Disney)
=-Original Message-
=From: The IBM
OK, so you are running active FTP, no firewalls, your macros always get the
connection and successfully do CWD. In that case, apart from looking at the
FTP server's log (a good suggestion I sadly didn't think of), you may also
setup a packet sniffer and filter all traffic between server's ports
There is concern about the communication between VTape and Dynam/T.
Do they need to communicate?
Jim,
We are currently running DYNAM 7.0 SP 4 and using VSAM based
VTAPE under VSE 3.1.2. It works just fine and will automatically
mount the virtual tapes for you. I would need to
The VTape I am referring to is a Z/VM based product and the vendor is
Virtual Software Systems. It creates virtual tape drives and manages
its own tapes and libraries.
I don't think we are talking about the same Vtape.
Jim Hughes
603-271-5586
Its kind of fun to do
Hello Jim,
Yes but the concepts are the same. And depending on the version of EPIC,
In my case CA, the same vendor.
Back in the earlier days there was discussion, (you might call it that),
about who actually wrote the code for the tape managers.
TOWER, then LEGENT, then CA, or was it all from
The VTape I am referring to is a Z/VM based product and the
vendor is Virtual Software Systems. It creates virtual tape
drives and manages its own tapes and libraries.
I don't think we are talking about the same Vtape.
You're right Jim. I am also on VSE-L and obviously confused!
Sorry
VSSI's VTAPE is a software simulation of tape I/O that creates virtual
tapes on disk. It was first created to answer the needs of ACP, later to
be known as TPF, development. TPF is very tape hungry, both in numbers
of drives needed and tapes created. The tapes in a development and test
environment
VTAPE is a super product, but also consider a Flex-CUB (essentially a
channel attached PC that can present itself as tape drives or slower disk
volumes. You can attach a variety of lower-cost disk storage to the
Flex-CUB, and mirror that, or use a variety of techniques to get that to
Here is my experience with my testing of electronic delivery of z/VM. It may
be of use to others in similar situations or fellow listers may be able to
suggest improvements.
For electronic delivery IBM recommends the installer download the zip files
to their workstation, unzip and then as one
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