> On 21 Apr 2006 10:10:26 -0700, [EMAIL PROTECTED] (Jousma, > David) wrote: > > >All, > > > >We are evaluating making a change from MLA(1) to MLA(2). I've read > >through Managing Catalogs, and there seem to be a few issues that could > >present themselves in a MLA environment. I'm looking for some real > >world experience, both the good things, and the pitfalls. I'm also > >hoping Mark Thomen might chime in. > > > >I've worked in other environments that had a MLA of 2, and ran into some > >issues, and didn't come out with a good taste in my mouth. > > > >It's Friday, I hope to get some good feedback.
There is no performance impact from using MLA=2, unless we can't find the two-level HLQ on the catalog it is pointing to. Then we go back to the single HLQ and search the catalog that points to. But if you move your data sets to the catalog pointed to by the two-level HLQ you will have no performance problems. Thanks, Mark Thomen Catalog/IDCAMS/VSAM Development ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
