Re: SAVxxx TAPES: -- COMMON requirements submission

As Vern mentioned earlier COMMON provides an avenue to put in requirements to IBM. This is a classic case of where we need the requirements submission.

Here is the url to put in a requirement: http://community.common.org/secure/featurerequestIBM.htm

Remember you do not have to be a member of COMMON to put in requirements, but you do have to register. COMMON does not distribute any of the information collected.

On a related note: If you are a COMMON member please vote for the Board of Directors. There are three positions open and five candidates. Voting is open until the Annual Meeting and the results announced at the Meeting of the Members.

Jim Oberholtzer
CEO/Chief Technical Architect
Agile Technology Architects, LLC


On 4/16/2010 10:49 AM, Antonio Fernandez-Vicenti wrote:

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Thanks to all who answered.
I just has a meeting with customer, and in the light of all your
comments we're going to consider alternatives you suggested.
Nevertheless, we (customer a myself) are quite surprised:
AS/400, iSeries, i5 ... such a powerful beast... Journals of all kinds,
HA programs (MIMIX, etc) and so many good things, ...
and something so "basic" as to identify the System's SYSNAME /
MachineSerialNo when you do a SAVxxx is not kept anywhere!!!
As mentioned, we shall reconsider checksum, hash, php, ... but this
should be "in addition to"...
Anybody can give me a reason why writing SYSNAME/Machine SerialNo. to
the first few tape blocks would be a bad idea?
So many years since S/38 was born, I had never thought tapes were ALL
UNidentified , as per their origin!
TIA

El 14/04/2010 18:05, Antonio Fernandez-Vicenti escribió:

Assume you have several iSeries systems.
Some has stolen one of your tapes with LIBxxx objects (files, etc).
Restores it to a different system. Modifies some / much of the data,
then does a SAVLIB.

If the case arrives, ... Can you positively, strictly, identify that
tape as being NOT-one-of-ours-for-sure?

e.g., by means of dumping control blocks at the beginnig of the tape, or
any other similar ways.
I guess System's SYSNAME or SerialNo. are not kept in the tape's data
control blocks.
And, even if it is, can you strictly prove "it-is-NOT-our-tape"?

TIA