> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of George Rodriguez > Sent: Thursday, January 26, 2012 8:18 AM > To: [email protected] > Subject: MCDS Dataset Help > > Hi MVSListerv, > > I'm confused about the following information, that's display from command > F > DFSMShsm,F CDS: > > ARC0101I QUERY CONTROLDATASETS COMMAND STARTING ON > ARC0101I (CONT.) HOST=1 > ARC0947I CDS SERIALIZATION TECHNIQUE IS RESERVE > ARC0148I MCDS TOTAL SPACE=648000 K-BYTES, CURRENTLY > ARC0148I (CONT.) ABOUT 81% FULL, WARNING THRESHOLD=80%, TOTAL > ARC0148I (CONT.) FREESPACE=49%, EA=NO, CANDIDATE VOLUMES=0 > ARC0948I MCDS INDEX TOTAL SPACE=0010237 K-BYTES, > ARC0948I (CONT.) CURRENTLY ABOUT 025% FULL, WARNING THRESHOLD=080%, > ARC0948I (CONT.) CANDIDATE VOLUMES=0
snip > I guess what has me confused is the 81% full with the 49% freespace... > Makes no sense to me! Read the description of the message. The % full is based on the last used RBA while the % free includes all the space after that point PLUS any unused space before that point. It is similar to the situation in a PDS where new data will always be added at the end but there can be gas in the interior. > > Can someone tell me how to fix this problem? What problem do you think exists? Chapter 3 of the HSM Implementation and Customization Guide has a section on monitoring the CDSs. It tells you how to reorganize them if you want to recover the unusable free space. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
