High Performance Storage System HPSS Development Status 8 March, 2017 Copyright © IBM 2016 Slide Number 1

7.5.1 Installed Status Open LLNL is on 7.5.1 now (post-QREP) Very smooth upgrade after QREP Some Core Server Issues with workarounds or local mods in place (and pending release in 7.5.1p1) Closed LLNL is in replication waiting for the Open LLNL to prove stable over a longer period LANL is preparing for 7.5.1 conversion via QREP Several other HPSS installations at 7.5.1 for test, but not production yet Copyright © IBM 2016 Slide Number 2

7.5.1p1 Release 7.5.1p1 Planned release end of March, 2017 Key Contents DB2 10.5 and DB2 11 Apply fixes for production issues found at LLNL and elsewhere Improve server stability Improved POSIX compliance SCSI PVR change to recognize 'ENODEV' condition SCSI PVR improvements for more efficient inventory ppc64le support Copyright © IBM 2016 Slide Number 3

7.5.1p2 Release 7.5.1p2 Planned release end of September, 2017 Still being planned Copyright © IBM 2016 Slide Number 4

7.5.2 Development Development Began 8/1/16 Planned Release 1Q 2018 Content Metrics 15 CRs planned (See list to follow) 55 unique 'enhancements', includes things like Internal software quality improvement Improvements to Recover Quaid enhancements based on feedback lbp_verify enhancements based on feedback Support for O_EXCL-specific behaviors 110 bug fixes Copyright © IBM 2016 Slide Number 5

7.5.2 Dev/Test Milestone Process Working this release in several iterations (milestones) Get features to the test team sooner Test team runs one milestone back from development Get feedback and bug reports sooner Currently there are 4 planned milestones Roughly every 3 months Iterative process is helping us avoid a Big Test Cycle at the end of development like we had for 7.5.1 Copyright © IBM 2016 Slide Number 6

7.5.2 Planned Contents Release 7.5.2 New since HUF 2016 Subsystem Limits via API (CR 369) Current / Maximum values for open files, connections, etc. Core Server UDA / XML limits Allow Recover to take advantage of TOR (Bug 4859) Improvement to performance of Recover on sparse tape Remove open file table limit for Client API (Bug 6333) Prior limit was 4096 open files, now configurable lbp_verify maps block comparison failures onto file names (Bug 6473) Copyright © IBM 2016 Slide Number 7

7.5.2 Planned Contents (Cont) Release 7.5.2 Performance and Scalability Run DB2 on non-Core System (CR 386) PFTP support for Tape Order Recall (CR 357) Use file system as HPSS device (CR 379) Balanced Disk Purge (Bug 2617) Monitoring Syslog-based HPSS logging (CR 375) New log type: INFO (CR 349) Log stage performance metrics (CR 320) Provide more PVR and VV information in PVL Job Request Copyright © IBM 2016 Slide Number 8

7.5.2 Planned Contents (Cont) Release 7.5.2 Recover Improve Recover data analysis performance (Bug 5306) Improve Recover workflow (Bugs 5308 & 5523) Administration and Control Job Control and I/O Abort (CRs 183 & 280) Real-time Disk Ownership (CR 310) Aggregation Group Migration Candidates by Parent Directory (CR 376) Improve Aggregate Stage Performance (CR 270) Improve Sparse Repack Performance (CR 397) Copyright © IBM 2016 Slide Number 9