I doubt this is documented anywhere. The maximum number of alias entries is going to depend on the defined maxlrecl for the master catalog and the length of each alias. Basically, all the aliases for a UCAT are kept in one record in the mastercat. Assuming your master catalog has the maximum lrecl for catalogs, then your max lrecl is 32400. From 32400, you will need to take out the length of the ICF connector name cell (typically 52 bytes), the length of the ownership cell (at least 20 bytes), and the length of the volume cell (typically 22 bytes). Throw in a few extra bytes for some length indicators and this all adds up to about 100 bytes. Thus, you are left with about 32300 for the length of all the alias entries. Each alias entry will have a 2 byte length indicator followed by the actual alias padded with 1 extra byte.
Using the above 'formula', if each alias is 8 bytes, then each alias entry will need 11 bytes in the master catalog record. This gives you 2,936 maximum alias entries. So, the actual number depends on the defined max lrecl of your master catalog and the length of each individual alias. There are products out there that will read your catalogs (including the master), and alert you as to when any record is approaching the defined maxlrecl. T-REX is one of those products. Hope this helps. Larry Crilley Dino-Software, LLC http://www.dino-software.com/ 412-734-2853. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of R.S. Sent: Wednesday, May 18, 2005 8:39 AM To: [email protected] Subject: ICF ALIAS limit What is the limit for number of aliases in MCAT ? Is it documented ? -- Radoslaw Skorupka Lodz, Poland ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
