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Add LSO IPv6 SEA/VEA attributes to VIOS Performance Advisor and potentially default rules
The VIOS Performance Advisor is a very useful tool to verify the configuration of a running VIOS LPAR. Currently only some of the LargeSend attributes are reported when incorrectly set.
Based on TS010353771, I was advised one of the IPv6 attribut...
PowerVM VIOS, the Shared Ethernet Adapter device (SEA) needs support for IEEE802.3 Ethernet frame type
The SEA device in all VIOS releases is only designed for handling the EthernetV2 frame type with TCP/IP checksum offloading and the largesend/large_receive features.If a VIO client LPAR (IBMi or AIX or Linux) is configured to use IP interfaces wit...
Better troubleshooting when HMC doesn't display devices like disks when it should.
When the CMDB on the VIOS server is wrong, then the HMC simply does not display what you should see, and you have zero insight into why. We had issues with disks, missing UUIDs, or other errors. There should be a command, maybe a little more refin...
over 1 year ago
in PowerVM VIOS
Planned for future release
NFS based files as BackingDevices for vSCSI mapping
Allow files located on NFS shares mounted on the VIOs to be used as BackingDevice for vSCSI mapping (similar to VMware data store). Until now file based BackingDevices are only possible using StoragePools or ISOs.
almost 4 years ago
in PowerVM VIOS
Not under consideration
SEA over a 10Gb Ethernet Port in VIOS. Allow Virtual Ethernet Adapters in client partitions to run at 10Gb rather than a maximum of 1Gb.
Current limitation of Virtual Ethernet Adapters to run at 1Gb. If a 10Gb Ethernet port is set up as an SEA in VIOS, then client partitions using the bridge of virtual to physical are limited by the Virtual Ethernet Adapter maximum of 1Gb bandwidth...
Code enhancement to handle VIOS Path loss issues during Brocade haReboot - There have been multiple outages experienced in IBM VIO Server(VIOS) managed environment, during storage related events. The haReboot performed on Brocade SAN switches are supposed to be non-disruptive, but in reality they do take a finite amount of time. In VIO managed environments, this has sometimes resulted in impact and affected availability. During a haReboot the fabric services are not available and hence when the VIOS queries the Name server on the switch, it may not get the desired response due to the haReboot in progress. This results in the VIOS logging out and attempting to log back in again, resulting in path failures at the VIOS. To prevent the same from happening, the VIOS code can be updated to include an appropriate time interval that kicks in as and when the haReboot is in progress. The VIOS will then wait for this interval and pause any activity, before querying the name server again. The assumption is that the haReboot RSCN notification is sent correctly by the Brocade switches and received by the VIO servers. If not, then this can be worked out jointly by Brocade and IBM, to prevent outages in the future. The referenced Support Case has additional information.
among all the different vendor servers, the IBM VIOS managed AIX server environments seem to be susceptible and have experienced outages as and when haReboot is performed.
In normal running Aix, if the switch port is powered off or if loses power, and then powered on The Vnic first would fail to the backup port then after the switch port is powered on, the vnic will try to fail back to the VNIC with the higher prior...
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