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SAM & OLAR

SAM & OLAR. Module Objectives. Upon completion of this module, you will be able to: List significant changes to system administration tasks in HP-UX 11i Determine system readiness for OLA/R activity Interpret the results of a Critical Resource Analysis

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SAM & OLAR

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  1. SAM & OLAR

  2. Module Objectives Upon completion of this module, you will be able to: • List significant changes to system administration tasks in HP-UX 11i • Determine system readiness for OLA/R activity • Interpret the results of a Critical Resource Analysis • Replace or add a PCI I/O card using SAM and rad

  3. Module Agenda • System Administration Overview • Online Addition and Replacement (OLA/R) • New SAM Features

  4. HP-UX 11i HP-UX 11x HP-UX 11i HP-UX 11i 1 16 SuperDome Partitions:Administration

  5. Online Addition and Replacement (OLA/R) • Introduction to OLA/R for PCI I/O Cards • SAM OLA/R Procedure for PCI I/O Cards • Preparing for OLA/R • Online Replacement • Online Addition • Advanced Considerations

  6. System Administration Manager (SAM)

  7. New In SAM • Access SAM thru Guardian Service Processor (GSP) • Local Console Port • Remote Session Port • Local Session Port • Internal Console Port • USB Port

  8. Changes to SAM HP-UX 11i supports new devices and features in the following SAM functional areas: Disks & File Systems Kernel Configuration Network File Systems & Interface Cards Peripheral Devices Printers & Plotters Terminals & Modems Partition Manager

  9. Disk & File System Additions • HP SureStore Disk Arrays • FC60 • XP 256 • Support of VERITAS Volume Manager (VxVM) • Recognition of disks being used by VxVM • Recognition of disk groups and volumes • Launching of Veritas Manager Storage Administrator (VMSA)

  10. Kernel Configuration Additions Support for dynamic tunables Immediate results (no reboot required) if changing the value of a dynamic tunable or a tunable set which contains ONLY dynamic tunables

  11. Network File System Additions • Export a file system using TCP/IP (in addition to UDP).

  12. Network Interface Cards Additions • Configure, modify, and unconfigure • Gigabit Ethernet:(1000Base-T and 1000Base-SX) • 100Base-T cards • Independent Hardware Vendor:cards manufactured by third party vendors that conform to the exported SAM Networking interface

  13. Peripheral Devices Enhancements • On-line Addition and Replacement (OLA/R) PCI I/O card support • Systems must have OLA/R-capable hardware • SD-Class (SuperDome), N-Class, and L-Class platforms • Hierarchical layout • Displays devices controlled by a particular card • Added Analyze Critical Resource

  14. Peripheral Devices (cont.) • Recognition and configuration support for DLT device tape densities • DLT_42500_24 • DLT_42500_56 • DLT_62500_64 • DLT_81633_64 • PCI multiplexer • HP SureStore disk arrays • Described under Disks and File Systems Enhancements

  15. Printers and Plotters Enhancements • Recognition of Super I/O Parallel Interface and configuration of printers using this interface • Updated software products that configure a network printer which contains a JetDirect interface card • Removed obsolete JetDirect printer configuration SW • Added support for new printer configuration software, HP JetDirect Printer Installer • HP JetAdmin still supported, too

  16. Terminals and Modems Enhancements • PCI multiplexer cards • Modem support for hardware flow control

  17. SAM: Last Call • Last release for the following areas: • (HP-IB) Instruments sub-area under Peripheral Devices • Run SAM on Remote Systems • Process Control sub-area under Process Management • Routine Tasks • Performance Monitors • Disk and Terminal Activity • Inter-Process Communication Facility Status • Process with the Highest CPU Usage • System Activity • Virtual Memory Activity

  18. Documentation Changes • SAM manpage sam(1M) • On-line help

  19. Module Summary • SAM enhancements in HP-UX 11i • List of areas for future obsolescence • References

  20. Planning for OLA/R • Slot Compatibility • Driver Compatibility • System Impact • Preparatory Actions

  21. OLA/R Infrastructure SAM rad libolar.sl Software Hardware User Space /dev/olar Kernel Security OLA/R Driver SCSI PCI Card Device Driver OLA/R PSM Slots Firmware PCI CDIO

  22. Interfaces to OLAR • System Administration Manager, SAM • Graphical user interface (GUI) • The primary interface • rad • Command line interface • Developed for single-user mode when SAM not yet available • Not generally recommended

  23. Planning and Preparation Issues • Slot compatibility • Driver compatibility • Impact on the system • To the OS • To SAM • To other applications

  24. Considerations for Critical Resources • Critical resource: a resource that, if lost, would cause the system to crash, or the OLA/R operation to fail • Examples: • Swap partition • /, /usr, /etc, and /var filesystems • Network card carrying connection for SAM displayed on a remote machine

  25. Considerations for Power Domains • Does not affect SuperDome Every slot is an individual power domain Other Systems • Power domain:A grouping of 2 or more interface card slots that are powered on or off as a unit. • In many cases, there exist dependencies between other interface cards, slots, and power domains within the system.

  26. Considerations for Multi-Function I/O Cards • All functions on the same power source • Must suspend all functions to remove the card • Must resume all functions to bring the card back • Must account for multiple affected cards in the critical resource analysis

  27. Failover • Failover means that the system will use an alternate resource if the primary resource is unavailable • Critical resource analysis will prevent suspension of resources that do not have an alternate • The system may operate with a single point of failure for a short time

  28. Online Card Replacement • Replacement card must be identical type of card • Must use same driver • Must have same number of functions or ports • Must have compatible power and frequency requirements • Single point of failure may result when card is suspended and its backup takes over

  29. Card Replacement with SAM • Start SAM • Select Peripheral Devices--> Cards • From the Sys Admin view of active I/O adapters, choose the adapter to be replaced • Select PCI slot, then Replace action • SAM analyzes critical resources • Physically remove old card and insert new card • SAM finishes replacement by restarting card

  30. Online Replacement with SAMSteps 1 and 2 # sam

  31. Online Replacement with SAMStep 3

  32. Online Replacement with SAMSteps 4, 5, and 6

  33. Online Replacement with SAMStep 7

  34. Online Replacement with SAMSteps 8, 9, 10, 11, and 12

  35. Online Replacement with SAMSteps 13 - 17

  36. Overview of Online Replacement with rad • Determine slot, path and drivers capable fields • Set the selected cards attention state to flash • Critical Resource Analysis (manually) • Power Domain • Multi-function card • Driver time-out value for card • Execute /etc/olard.d scripts for the selected card • Power off slot • Replace the card • Power on slot • Run /etc/oldard.d/post_replace scripts • Run ioscan and rad to verify correct function of card • Turn the selected card’s attention LED off

  37. Online Replacement with /sbin/rad Step 1

  38. Online Replacement with /sbin/rad Step 2 # rad -q

  39. Online Replacement with /sbin/radSteps 3 – 6 3. Turn the LED to attention • # rad -f <slot id> 4. Check for other slots in the power domain that are affected by this card • # rad -a <slot id> 5. Check to see if the target card is a Multifunction card • # rad -h <slot id> 6. Determine the time-out value of the driver • # rad -V <hw_path>

  40. Online Replacement with /sbin/radSteps 7 – 9 7. Execute any OLA/R script for this card • # sh /usr/sbin/olrad.d/drivername prep_replace hw_path 8. Suspend the drivers • # rad -s <slot id> 9. Turn off the power to the target slot • # rad -o <slot id>

  41. Online Replacement with /sbin/rad Step 10

  42. Online Replacement with /sbin/radSteps 11 – 15 11. Turn on power to slot • # rad -i <slot id> 12. Run post_replace script • # sh /usr/sbin/olard.d/drivername post_replace hw_patch 13. Restart drivers for target and affected cards • # rad -r <slot id> 14. Verify that the new card functions properly • # ioscan • # rad -q • # rad -c <slot id> 15. Turn card slot’s attention LED off • # rad -f off <slot id>

  43. Online Addition with SAM • Check that the driver exists in the kernel • Check that an available slot exists on the system in an appropriate location • Check that the new card is compatible

  44. Online Addition with/sbin/rad • Check that the driver exists in the kernel • Check that an available slot exists on the system in an appropriate location • Check that the new card is compatible

  45. Possible Errors • The card is in a slot that is not managed by the correct partition • The driver is not loaded in the kernel • The power domain is shared with a critical resource

  46. parmgr Thru SAM

  47. Module Summary The purpose of this module was to: • Changes to SAM in HP-UX 11i • OLA/R with SAM and rad

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