On 5/10/2016 3:04 AM, Tom Conley wrote:
On 5/10/2016 1:23 AM, Pinnacle wrote:
FYI,
I allocated a non-SMS EAV on my system with 111300 cylinders. I try to
run three jobs with SPACE=(CYL,(10000,5000),RLSE),DSNTYPE=LARGE. The
first job runs, the other two fail with IEF257I SPACE REQUESTED NOT
AVAILABLE, on the EAV when it has 90000 CYLS avail. The allocation
message indicates that it attempted allocation on the EAV. If I single
thread the jobs, no problem. Is this a bug or a feature? And no, I
can't submit a PMR.
Regards,
Tom Conley
I fingered it out. In the failing cases, I was using an IBM Futility
which apparently wasn't updated with EAV code. It was failing because
it was allocating in the track-managed space. I'm going to verify that
with a Generic Tracker run, then I'll be pursuing an RFE with the culprits.
Regards,
Tom Conley
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I must thank the redoubtable James Mulder for the solution to this
problem. In addition to DSNTYPE=LARGE and an allocation over the BPV
(break point value) in IGDSMSxx, you need to have EATTR=OPT in the JCL,
DYNALLOC, TSO ALLOC, etc. Why my other allocations worked is anyone's
guess, but once I added EADDR=OPT to the failing JCL, that drove the
failing jobs to allocate in the cylinder managed space.
One of the things I found appalling is that there is not a single
example of how to allocate an EAV dataset in the cylinder-managed space
anywhere in any IBM doc. You can find EATTR=OPT if you know to look for
it, but do a search on how to allocate an EAV dataset. Nothing.
Another futile email to mhvr...@us.ibm.com coming up.
So if you want to use EAV's, make them SMS. That way you can set
EATTR(OPT) in all your DATACLASses and fuhgeddabotit. Non-SMS EAV's
don't make a whole lotta sense, unless updating thousands of JCL members
is your thing.
Regards,
Tom Conley
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