1. High Performance Storage System
HPSS Development Status
8 March, 2017
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2. 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 conversion via QREP
Several other HPSS installations at for test, but not production yet
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3. 7.5.1p1 Release 7.5.1p1 Planned release end of March, 2017
Key Contents
DB 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
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4. 7.5.1p2 Release 7.5.1p2 Planned release end of September, 2017
Still being planned
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5. 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
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6. 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
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7. 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)
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8. 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
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9. 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)
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