Re: Forcing an SMS dataset to a specific volume
- From: m42tom-ibmmain@xxxxxxxxxxxx (Tom Marchant)
- Date: 15 Sep 2006 07:39:19 -0700
On Fri, 15 Sep 2006 07:49:36 -0500, Joe jeffries <r907ccx@xxxxxxxxxxx>
wrote:
Tom,
We've not had performance problems for the dataset, just the occasional
hiccup when they get allocated to a hot volume which then exceeds the
x'500' threshold in XRC. The primary concern is that XRC doesn't block the
volume so striping would just mean we have to DNB more volumes wouldn't it?
They are only smallish datasets and also dynamically allocated (I should
have pointed that out earlier) so the JCL method is a non-starter (I'd love
to be wrong on that one?).
I'm still leaning to creating a new SG with just one volume. Unless anyone
knows better.
Beware of storage puddles. You don't need a new storage group if you
use a storage class with guaranteed space. It could be part on some
other storage group. You just need to ensure that there is sufficient
space available for it.
I'm getting confused, though, about what the problem is that you are
trying to solve. IMHO, there should be a *really* good reason to try
to force SMS to select a particular volume.
Tom Marchant
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