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10 GBit Ethernet: Resources grab bag

AnthonyEnglish Visits (5991)

As 10Gbit Ethernet (10 GbE) hits data centres around the world, you'll need to know how to optimise it. There are a few superb resources available. IBM PowerVM Technical Webinars - Virtualisation and the World of 10Gbit Ethernet The excellent Webinar Series on Power Systems Virtualisation from IBM has free monthly sessions on Virtualisation. Mr NMon himself -- a.k.a. Nigel Griffiths -- presents some of them. Each webinar runs for about an hour and has an accompanying set of slides. If the UK time zone makes the webinar difficult for you to... [More]

Tags: qlogic 10gbit chelsea brocade switch ethernet cna 10gbe

HMC V7R7.2.0 allows dynamic VLANs on Power7

AnthonyEnglish Comments (2) Visits (7952)

The HMC V7R7.2.0 has been released and it includes a feature which has long been in demand: the ability to change VLANs dynamically on virtual ethernet adapters. Hooray! The documentation for the HMC release notes explain that this feature is for Power7 servers only: The chhwres command has been enhanced to support dynamically changing the properties of a virtual Ethernet adapter which is assigned to a running partition ( POWER7 servers only) . The properties that can be changed are the IEEE 802.1Q setting, the virtual LANs , and... [More]

Tags: virtual vlan hardware_management_conso... ethernet network dynamic_lpar firmware sea aix hmc corrective_service aix_virtual_user_group shared_ethernet_adapter webinar mac_address remote

IVM to HMC Migration - a Customer's Experience

AnthonyEnglish Visits (6160)

In September 2009 Rob McNelly wrote on his AIXChange blog about Migrating from the IVM to the HMC . I have documented my own experience of this procedure. You can download it from here , at a very affordable price of USD 0.00 (no refunds). The IVM or Integrated Virtualization Manager, is a browser interface to the VIO server on smaller systems, and it has HMC-like functionality, such as Dynamic LPAR, the ability to configure LPARs, stop and start them and so on. The HMC (Hardware Management Console, as you know) is able to manage several... [More]

Tags: integrated_virtualization... sea management ethernet lpar virtual ivm id outage shared rob_mcnelly hmc v7.3.5.0 dlpar power server aix adapter ibm hardware_management_conso... migration

Turbo charge inter-LPAR communications using super jumbo frames

AnthonyEnglish Comments (17) Visits (13422)

REV UP YOUR VIRTUAL ETHERNET There are a few strategies for speeding up communications between LPARs on the same physical server. One of those is using virtual adapters. Those virtual adapters can run at high speeds. You can turn on this turbo-charge feature by setting the MTU size to 65280 Bytes, which are actually SUPER jumbo frames, according to Wikipedia . Whatever that means, it sounds good, doesn't it? The transmission speed of Virtual Ethernet adapters is in the range of 1-3 Gigabits per second , depending on the... [More]

Tags: adapter virtual io aix mtu ftp jumbo_frames dd chdev lsattr ethernet performance

"I need it yesterday" - quicker copies between AIX systems

AnthonyEnglish Comments (3) Visits (5995)

"Go live or go home" If you need to get a lot of data from one AIX host to another, there's more than one way to do it quickly. During a migration to a new system, you may do a database dump or archive and want to get the data available to the new LPAR within a short time frame. You can tweak the network settings improve your SAN configuration (just turn on the turbo switch) and assign more resources to ease the bottlenecks. Of course there's Live Partition Mobility (LPM) and various High Availability options but they may not be... [More]

Tags: bus varyoffvg exportvg logging copy importvg rsync jfs varyonvg ethernet adapter san lun high virtual speed data nolog

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10 GBit Ethernet: Resources grab bag

HMC V7R7.2.0 allows dynamic VLANs on Power7

IVM to HMC Migration - a Customer's Experience

Turbo charge inter-LPAR communications using super jumbo frames

"I need it yesterday" - quicker copies between AIX systems