On Wed, 9 Aug 2006 17:11:22 -0600 Paul Gilmartin <[EMAIL PROTECTED]> wrote:
:>>From the descriptions of STOW: :>2.2.54 "z/OS V1R7.0 DFSMS Macro Instructions for Data Sets" :> I :> clears, or resets to empty, a PDSE directory. The parameter :> list (list address) is not required for STOW initialize. :> This function works only with PDSEs and the data set must :> be allocated with DISP=OLD or DISP=MOD. :>And: :>2.2.54 "z/OS V1R8.0 DFSMS Macro Instructions for Data Sets" :> I :> clears, or resets to empty, a PDS or PDSE directory. The :> parameter list (list address) is not required for STOW :> initialize. There are no serialization requirements for :> using STOW initialize. For PDSES, PDSE member connections :> will protect any application accessing a member concurrent :> to the issuance of STOW initialize. A member being read :> will be marked for deletion, but will not be deleted until :> after the connection is released. :>Hmmm. So they've added PDS support. Very useful! PDSCLEAR :>is now a trivial operation. And removed the serialization :>requirements. :>Am I right to be uncomfortable with the idea of clearing a PDS :>directory while another job has it allocated SHR? I suppose :>the answer is that if I don't like it, I can request exclusive :>access. But maybe there's some code in the world that does a :>"STOW dcb,,I" and simply relies on the operation to fail in :>the unsafe cases. And how will this play against ISPF PDS :>directory serialization conventions? If two jobs open a PDS for output there is a 213-30 (IIRC) abend. I would doubt if STOW works agains a PDS opened for input. :>(Will there be a "Clear Directory" command in DSLIST?) -- Binyamin Dissen <[EMAIL PROTECTED]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- 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
