Mark Zelden wrote:
On Tue, 16 Oct 2007 15:54:50 +0200, R.S. <[EMAIL PROTECTED]> wrote:

Mark Zelden wrote:
On Mon, 15 Oct 2007 23:37:50 -0500, Joel C. Ewing <[EMAIL PROTECTED]> wrote:

Every time you mount a tape there is a small but non-zero probability
that the tape will be physically or logically damaged by a drive (or by
an Operator or robot mishandling the tape).
Not with virtual tape (which is what we offload to on those LPARs that
do offload SMF directly to tape).   No mount delay either.  However,
occasional tape sharing allocation problems (MIM/MIA) have held up
the SMF offload processing on those LPARs.
Unless you have to do some disruptive maintenance on your STK VTCS.


With virtually 100% of our tape environment using virtual tape (no pun
intended), that type of work is done when systems can be "quiesced". Besides, that we have redundancy in our virtual tape environment. The only thing that uses native tape is HSM and TSM.

Can you use tapes when i.e. moving HSC CDS files ?
You can have multiple boxes, but usually you have only one NCS environment (HSC, VTCS, LS). More precisely: possibly multiple HSC instances sharing single set of CDSes.

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Radoslaw Skorupka
Lodz, Poland


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