Dave, > > What is the best way to separate datasets within a storage group. > > Applications want 3 datasets A.B.** to always be allocated on > different packs > than 3 datasets A.C.** > > These are small files, and I hate to waste an entire volume to create > another STG GROUP... > just to isolate them... > If you allocate all three datasets in the same jobstep, they should be allocated to different volumes if there are enough candidate volumes in the storage group below the high allocation threshold. There is no guarantee unless you assign a special storage class with guaranteed space set to yes and you specify the volser for each dataset. Then you run the risk of not enough space on the volume for the dataset or you forget and removed the volser. Regards, John
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