DB2 for z/OS V8 - Guide Share France

More documents

Recommendations

Info

V7 For logged user (TSO/SDSF): id passed through for console commands = SYSOPR Zparm SYSOPRn=SYSOPR allows any user to enter commands from console V8 For logged on user: id passed through for console commands is now the user and not SYSOPR Console operator could be unable to operate DB2 RACF groups and secondary authids supported in V8 © 2007 MConsulting - cristian@molaro.be 26
64 bits addressing is NOT the solution to ALL the VS problems Still need to work on VSCR Some structures remain under the bar or the line Only IRLM and DBM1 address spaces exploit 64-bit addressing Several critical storage pools above 2GB bar, i.e. BPOOLS Thread related storage stays below the bar & Thread footprint increases 30% - 70% Look after REAL storage, not only VIRTUAL storage Observed increase about 3% depends on usage ftp://ftp.software.ibm.com/software/data/db2zos/DB2VSTORprez.pdf © 2007 MConsulting - cristian@molaro.be 27
Page 1 and 2: Cristian Molaro MConsulting BELGIUM
Page 3 and 4: © 2007 MConsulting - cristian@mola
Page 5 and 6: Critical APAR: ====================
Page 9 and 10: DFSORT is mandatory for IBM utiliti
Page 11 and 12: SPAS stored procedures not longer s
Page 13 and 14: WLM address space fails at start: D
Page 17 and 18: CM EN FM NF M CM EN FM NF M NF M CM
Page 19 and 20: DSN TRKS CYLS DB TS CI Size RECORDS
Page 21 and 22: Total elapsed time = 5 min Copies
Page 23 and 24: Compare EXPLAIN tables V7 vs. V8:
Page 25: © 2007 MConsulting - cristian@mola
Page 29 and 30: STATISTICS EXEC REPORT DDNAME(STATS
Page 31 and 32: Paul Fletcher’s REXX for READS an
Page 33 and 34: IBM published CPU expected changes
Page 35 and 36: Rebind all packages/plans Multi-ro
Page 37 and 38: New in V8: BACKUP SYSTEM RESTORE
Page 39 and 40: Define separate ICF Catalogs User
Page 41 and 42: Creates full volume dasd copies of
Page 43 and 44: Restores DB2 system to specified po
Page 45 and 46: Good news: sliding secondary alloca
Page 47 and 48: Default PRIQTY 1 cylinder for non-
Page 49 and 50: INSTALL DB2 - SIZES PANEL 2 ===> Ch
Page 51 and 52: Materialized Query Tables = MQTs T
Page 53 and 54: Original query: SELECT DISTINCT(REP
Page 55 and 56: MQT creation: CREATE TABLE MQT.TEST
Page 57 and 58: New access path: © 2007 MConsultin
Page 59 and 60: New in V8: Statistics Advisor Lis
Page 63 and 64: zIIPs NOT PADDED Indexes Backwards
Page 65 and 66: Moving to V8 is good Take document

DB2 for z/OS V8 - Guide Share France

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?