GigaRing SWS & I/O Status Paul Falde Engineering Manager - I/O - PowerPoint PPT Presentation

Aug 05, 2023 •23 likes •133 views

GigaRing SWS & I/O Status Paul Falde Engineering Manager - I/O Software Development SGI 41st Cray User Group Conference Minneapolis, Minnesota GigaRing SWS & I/O Status Content SWS-ION Releases & Schedules SWS-ION 4.0

GigaRing SWS & I/O Status Paul Falde Engineering Manager - I/O Software Development SGI 41st Cray User Group Conference Minneapolis, Minnesota
GigaRing SWS & I/O Status Content ¥ SWS-ION Releases & Schedules ¥ SWS-ION 4.0 Features ¥ SWS-ION 5.0 Features ¥ SWS-ION 5.1 Features ¥ Future SWS-ION Features ¥ I/O Enhancements in UNICOS and UNICOS/mk 2
SWS-ION Releases & Schedules Timeline ¥ SWS-ION 4.0 - February 4, 1999 ¥ SWS-ION 5.0 - June 28, 1999 ¥ SWS-ION 5.1 - 3rd or 4th Quarter, 1999 ¥ SWS-ION 5.2 - not scheduled yet 3
SWS-ION 4.0 Features Cray SV1 System ¥ Cray SV1 Support Ð SV1 boot sequence Ð Revision A support ¥ HPN performance improvement (~10%) ¥ Display failing FCN RAID-3 spindle ¥ dring only logs folds/masks when necessary ¥ GigaRing proxy priority changed 4
SWS-ION 5.0 Features SWS O2 & SV1 SuperCluster Support ¥ SWS O2 Introduction Ð Only supports J90 & SV1 systems Ð SV1 SuperCluster supported only by O2 ¥ SV1 SuperCluster Ð Enhance GigaRing recovery Ð Dring locking Ð Shared GigaRing resiliency ¥ FCN Initial Install Support ¥ Solaris Y2K Compliance 5
SWS-ION 5.1 Features Auto-Recovery ¥ Auto-Recovery Ð SV1 SuperCluster resiliency Ð Unattended operation Ð Mike WolfÕs talk: 9:00 Thursday in Ballroom 3 ¥ Investigating FCN performance enhancement with write-cache ¥ Reduce duplicate console messages ¥ Possibly others 6
Future SWS-ION Features Considering ¥ Shared GigaRing document ¥ Future disk technology Ð 36 GByte / 10K RPM drives ¥ SV1 dumpsys enhancements ¥ Improve networking performance 7
I/O Enhancements in OS UNICOS ¥ Command for initializing mainframe GigaRing connections ¥ Multithreaded network interrupts Ð 9 - 50% performance improvement for multiple network interfaces ¥ Reset GigaRing connection on panic (next slide) UNICOS and UNICOS/mk ¥ BDS block size option on cp(1) 8
Shared GigaRing Example J90 T3E ION GigaRing 9
I/O Enhancements in OS Considering ¥ BDS 2.1 server ¥ Improve host to host performance ¥ Improve NFS performance 10
Summary Driven by: ¥ New hardware ¥ Resiliency ¥ Performance ¥ Ease of use 11

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