iCommunity PowerVM Update · 2017. 7. 3. · Title: iCommunity PowerVM Update Created Date:...
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PowerVM Virtualisation Update PowerVM and PowerVC Discussion Thomas Watts Senior Technical Consultant – OpenPOWER and Linux 11th May 2017
Transcript of iCommunity PowerVM Update · 2017. 7. 3. · Title: iCommunity PowerVM Update Created Date:...
PowerVM Virtualisation UpdatePowerVM and PowerVC Discussion
Thomas WattsSenior Technical Consultant – OpenPOWER and Linux
11th May 2017
VIOS the Basics!• What is the Virtual I/O Server for?• VSCSI and NPIV storage attachments• Shared Ethernet Adapters• SR-IOV and vNIC• Shared Storage Pools• Live Partition Mobility Enablement• Virtual Optical Library• Active Memory Sharing11th May 2017
11th May 2017
VIOS Enhancements• NovaLink architecture for POWER8 based
systems• Virtual Network Interface Controller (vNIC)• Live Partition Mobility improvements in
resiliency, performance, and NPIV validation• Shared Storage Pool Enhancements
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Virtual Storage Recommendations• When using vscsi attached devices ensure the following rules are followed:
• Never map more than 32 luns to a single vscsi adapter
• For each lun make sure disk queue depth is set to a reasonable value (8 or higher)
• Ensure scsi reservations are disabled on the luns at the VIOS level
• Place virtual tape devices on a separate virtual adapter to any disk devices
• For performance reasons keep all luns mapped to an ASP to the same size
• When using NPIV attached devices ensure these rules are followed:
• Never map more then 64 luns to a single NPIV adapter
• Use separate NPIV adapters for tape devices and disk devices
• When using multiple paths to an attached device that all paths are showing as available or active in DST
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Do IBM i customers do these?• vNIC with SR-IOV
• With IBM i 7.2 TR 3 and IBM i 7.1 TR 11, plus newer levels of firmware and VIOS, a Virtual Network Interface Controller (vNIC) allows the Live Partition Mobility function to be done with SR-IOV configurations. This is linked to the vNIC additions in the VIOS announcements.
• VLAN Tag Support for Network Boot and Install (IBM i 7.2 TR 3 +)• With IBM i 7.2 TR 3, a reconfiguration of the virtual LAN will no longer be required in order to do a network boot and install of an IBM
i partition.
• Large Send Offload on Virtual Ethernet• For both IBM i 7.2 TR 3 and IBM i 7.1 TR 11, IBM i Virtualization configurations with virtual Ethernet traffic between partitions on the
same system should see a performance benefit due to implementation of Large Send Offload. Firmware 840 or newer is also required.
• Support for IBM i Virtualization configurations with Little Endian Linux client partition• Little Endian Linux partitions can now be run on Power systems. To better fit Linux workloads with IBM i workloads, a Little Endian
Linux partition can be configured as a client that uses an IBM i 7.2 or IBM i 7.1 partition as an I/O server partition. Both HMC and VPM configurations are supported.
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POWERVCManaging virtual resources
IBM i Virtualisation with PowerVC• Technology Updates:
- Cloud-Init will be the only supported initialization framework for IBM i VM from 2Q, 2017
- Installing of Cloud-Init on IBM i will not require downloading the dependencies from the internet any more. (4Q, 2016)
• Base PowerVC functions with IBM i:
- Manage existing IBM i VMs- IBM i image import- IBM i VM capture and deploy- IBM i VM start/stop/delete/resize via nova- IBM i VM attach/detach volume- IBM i VM placement - LPM support- IBM i VM health state check- SVC support via NPIV and SSP
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Questions?
Thank you!
ibm.com
