Brian, We are quoting the same reference - your quote is directly below mine.
IBM are putting the cost of space as a priority, whereas Mainstar are putting performance. It really depends on just how busy the MCDS is. How long does a CA split take? It depends on the CI size, but it's about 30-100 times longer than an insert without a CA split. You'll be read and rewriting those CIs one at a time. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of FRASER, Brian > Sent: Thursday, 8 February 2007 12:41 PM > To: [email protected] > Subject: Re: FIXCDS to delete records from mcds > > What IBM actually say is: > > " IBM also recommends that installations define their CDSs with > FREESPACE(0) so VSAM can figure out where space is needed and perform the > necessary CI/CA splits when doing inserts. > This will create space where needed and eliminate the need for the extra > space that would be required if the CDSs were defined with FREESPACE(50 > 50)" > ---------------------------------------------------------------------- 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
