IBM zEnterprise Data Compression

1 CoverReduce Storage Occupancy and Increase Operations Efficiency with IBM zEnterprise data CompressionPaolo BruniMaria Kroos BoisenGianmauro De MarchiFranco PintoUnderstand zEDC capability and the hardware featuresStore compressed data on System z more cost effectivelyLeverage zEDC for cross-platform file compressionInternational Technical Support OrganizationIBM zEnterprise data Compression February 2015SG24-8259-00 Copyright International Business Machines Corporation 2015. All rights to Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP ScheduleContract with IBM Edition (February 2015)This edition applies to zEnterprise data Compression , a combination of the z/OS zEDC capability and the hardware feature zEDC Express (FC# 0420) available for zEC12 GA2, zBC12 and later models. Note: Before using this information and the product it supports, read the information in Notices on page xiii. Copyright IBM Corp.

2 2015. All rights .. viiTa ble s .. ixExamples .. xiNotices .. xiiiTrademarks .. xivIBM Redbooks promotions .. xvPreface .. xviiAuthors .. xviiNow you can become a published author, too .. xixComments welcome.. xixStay connected to IBM Redbooks .. xixChapter 1. zEDC overview and prerequisites.. Overview of zEDC Express .. DEFLATE format.. Types of Compression .. Use cases .. Configuration .. Prerequisites .. Coexistence .. 7 Chapter 2. Installing IBM zEnterprise data Compression Express devices .. Installation planning .. Preconditions .. z/OS: Verify the prerequisites .. z/OS: Enabling the Priced Software Feature .. z/OS: Control the use of Peripheral Component Interconnect Express features .. HCD: Defining the device .. HCD PCIe function configuration .. HCD PCIe function verification .. HCD: Activating the new configuration .. z/OS: Bringing the zEDC Express devices online to z/OS .. z/OS: Managing the zEDC Express devices.

3 27 Chapter 3. z/OS zEnterprise data Compression and System Management Facilities Introduction .. Benefits .. SMF use .. Setting up z/OS SMF .. Dumping compressed records .. Coexistence .. 36iv IBM zEnterprise data Compression Test case.. Environment setup .. SMF logstreams usage .. Comparison about IFASMFDL .. Comparison about IFASMFDP .. zEDC and PCIe monitoring .. Using RMF Postprocessor batch job.. RMF Spreadsheet Reporter .. Fields in the RMF PCIe report.. 49 Chapter 4. z/OS zEnterprise data Compression Express feature and BSAM/QSAM data sets.. BSAM and QSAM .. Basic Sequential Access Method .. Queued Sequential Access Method .. System setup and DFSMS parameters.. Work with zEDC compressed files .. BSAM files .. QSAM files .. Dumps.. Identifying candidates .. DB2 for z/OS data and zEDC .. Virtual Storage Access Method DB2 data sets .. Non-VSAM DB2 data sets.

4 67 Chapter 5. IBM System z Batch Network Analyzer Tool .. Introduction to zBNA .. How to obtain zBNA .. Identification of zEDC Express Compression candidates .. Installation of the zBNA tool .. Input data gathering .. Analyzing the output .. Example of zBNA zEDC Express analysis .. 80 Chapter 6. zEDC and DFSMSdss.. DFSMSdss functions that support zEDC Express .. DFSMSdss tasks and parameters with zEDC Express.. CONSOLIDATE .. COPY .. DEFRAG .. DUMP and RESTORE .. PRINT .. 106 Chapter 7. zEDC and DFSMShsm when using DFSMSdss as the data mover .. Introduction .. DFSMShsm.. Compression in DFSMShsm today .. Specifying when Compression with zEDC should be done .. Using zEDC support in DFSMShsm .. Overriding SETSYS for individual data sets .. Controlling ZCOMPRESS for Volume Dumps .. Recovering data using zEDC .. Coexistence of z/OS V1R12 and V1R13 .. 116 Contents vChapter 8.

5 ZEDC advanced topics.. zEDC Compression using Java .. IBM Encryption Facility .. WebSphere MQ for z/OS V8 .. IBM Sterling Connect:Direct for z/OS .. z/VM and zEDC.. zlib use by applications .. zlib and z/OS.. Running zlib .. System z authorized Compression services .. 129 Appendix A. Additional material .. 131 Locating the web material .. 131 Using the web material.. 131 System requirements for downloading the web material .. 131 Downloading and extracting the web material .. 132 Index .. 133 Related publications .. 135 IBM Redbooks .. 135 Other publications .. 135 Online resources .. 136 Help from IBM .. 136vi IBM zEnterprise data Compression Copyright IBM Corp. 2015. All rights The zEDC card (#0420) .. 21-2 Example of zEDC Compression .. 32-1 Relationship among PCIe I/O cage card slots, I/O domains, and RGs.. 102-2 IFP and RG basic configuration .. 102-3 IFP and RG advanced configuration .. 112-4 Processor List: Work with PCIe functions.

6 182-5 Add PCIe functions: Insert appropriate information .. 182-6 Define Access List: Specify one partition .. 192-7 Define Candidate List: Specify one partition .. 202-8 Print Configuration Report: CSS report.. 212-9 Available CSS Report Types: CSS summary reports .. 212-10 Limit Reports .. 222-11 Main menu: Select Activate or process configuration data .. 232-12 Activate or Process Configuration data : Select Build production IODF .. 242-13 Message List (building Production IODF) .. 242-14 Build Production I/O Definition File .. 252-15 Define Descriptor Fields .. 253-1 zEDC with z/OS SMF logger.. 333-2 SMF use .. 333-3 Download XML Toolkit .. 433-4 XML Toolkit directory .. 443-5 XML Toolkit view report .. 453-6 IBM RMF Spreadsheet Reporter Settings .. 463-7 IBM RMF SR Options: General and Reports .. 463-8 RMF SR Create Report Listing_1 .. 473-9 RMF SR Create Report Listing_2 .. 473-10 RMF SR Create Report Listing_3 .. 483-11 RMF Spreadsheet Reporting Report Listing view.

7 483-12 RMF XML PCIe Activity Report.. 504-1 Records and blocks with BSAM .. 544-2 Records and blocks with QSAM .. 554-3 data Class Display panel: Page 2 .. 574-4 Definition of new Storage Group COMPZEDS .. 584-5 Shows the allocation details for the input file .. 604-6 Shows the allocation details for the output file .. 614-7 Input QSAM data set.. 624-8 Output QSAM data set .. 634-9 Display of SMS-managed, zEDC compressed, extended-format sequential data set . 654-10 Standard archive log data set .. 684-11 zEDC-enabled archive log data set .. 684-12 Track allocation for DB2 archlog files .. 69viii IBM zEnterprise data Compression 5-1 Import files .. 765-2 How to start the zEDC analysis .. 765-3 List of the top zEDC Express candidate data sets .. 765-4 Graphical view of a selected zEDC top data set .. 775-5 Zoom - Graphical view of a selected zEDC top data set.. 785-6 Projected zEDC cards.. 795-7 Estimated zEDC CPU savings.

8 795-8 Estimated I/O savings .. 805-9 Without zEDC data set characteristics .. 815-10 Without zEDC job sample .. 815-11 With zEDC data set characteristics.. 825-12 With zEDC job sample .. 825-13 Top zEDC Express candidate data sets. Top: Without zEDC (#@$2) Bottom: With zEDC .. 835-14 Graphical view - Top candidate data sets. Left: Without zEDC (#@$2) Right: With zEDC .. 835-15 I/O savings. Left: Without zEDC (#@$2) - Right: With zEDC (#@$A) .. 845-16 CPU savings. Left: Without zEDC (#@$2) Right: With zEDC (#@$A) .. 845-17 zEDC cards. Left: Without zEDC (#@$2) Right: With zEDC (#@$A) .. 856-1 Source data set for COPY .. 916-2 Results of COPY .. 926-3 Results of a DEFRAG operation .. 946-4 Compressed source data set for DUMP and RESTORE .. 956-5 Resulting dump data set .. 976-6 data set characteristics of the zEDC compressed dump data set .. 996-7 Dump data set characteristics.. 1006-8 data set characteristics of the dump data set.

9 1026-9 Characteristics of the zEDC uncompressed DFSMSdss dump file.. 1036-10 XML file characteristics .. 1046-11 Extract of the output of the PRINT command .. 1078-1 Java usage example .. 1228-2 Compression and decompression with zlib.. 128 Copyright IBM Corp. 2015. All rights Comparison of CMPSC versus zEDC Express.. 43-1 SMF differences with and without zEDC.. 423-2 Hardware Accelerator Activity fields .. 503-3 Hardware Accelerator Compression Activity fields .. 514-1 Dictionary tokens .. 594-2 zEDC Compression of Image Copies .. 714-3 Space allocated using DFSMShsm migration.. 715-1 Test case numbers .. 856-1 File sizes by Compression type .. 1006-2 Full volume dump: Source volume .. 1017-1 DFSMShsm Compression alternatives .. 1137-2 DFSMShsm Installation Exits in support of zEDC Express feature .. 1137-3 Performance of DFSMShsm dumps .. 1168-1 Frequently used Compression API classes in the package .. 121x IBM zEnterprise data Compression Copyright IBM Corp.

10 2015. All rights MES documentation .. 112-2 IFAPRD03 PARMLIB member .. 152-3 SET PROD command output .. 152-4 Feature enablement: Disabled .. 152-5 Feature enablement: Enabled.. 152-6 D PROD command .. 162-7 IQPPRMxx PARMLIB member .. 162-8 Display IQP command .. 172-9 PCIe function summary report .. 222-10 Messages PCIe function available .. 252-11 Display PCIe short format .. 262-12 Config PFID online .. 262-13 New status of PCIe short format .. 262-14 New status of PCIe extended format .. 272-15 Configure PFID offline CURRENTLY IN USE.. 272-16 D PCIe allocating devices .. 282-17 Configure PFID offline FORCE .. 282-18 PCIe status STNBY .. 282-19 Config PCIe from SE (Support Element) .. 293-1 IFA849i message on SMF logstream dump program .. 353-2 Define two new logstreams .. 363-3 Starting IFASMFxx member .. 373-4 Updated IFASMFxx parmlib member .. 373-5 SET SMF=ZA command on #@$A with zEDC .. 373-6 SET SMF=ZA command on #@$2 without zEDC.