Supporting_the_scalable_functions_for_HX5_blade
{{:Design Warning}}
Overview
HX5 is a new scalable blade server which is developed base on the eX5 technology. It can be expanded by MD - Memory Drawer (Which also occupy a blade slot) to support more memory, and two of the HX5 also can be connected together to supply high performance.
There are several new concepts for this new blade:
Complex: It contains all the HX5 blades and Memory Drawers that connected together by card. That means it represents all the connected devices.
Partition: A logic concept which containing part of the devices in a complex. Each partition can map to a system to install Operating System. Each partition could have 1HX5, 1HX5+1MD or 2HX5+2MD. (MD is the Memory Drawer)
Blade slot node: The physical devices which installed in the slots of a chassis. It can be a HX5 or MD.
After the physical installation of HX5, the complex information can be gotten from AMM, it includes how many partitions and nodes are existing in this complex. Then the partitions can be created for this complex base on the node information of the complex. Then the partition can be power on to work.
Each HX5 has two CPU sockets, if user want to have a four CPU system, a partition with 2 HX5 can be created for this requirement.
The functions will be supported for HX5
lsflexnode:
A 'lsflexnode' command is needed to display the complex, parition and node information in a chassis. It also can just display the information for a specific node.
Displaying all the complex, partition and node for a chassis, and relationship between them. (The value of some attribute will be replaced with description)
$ lsflexnode amm1
amm1: Complex - 24068
amm1: ..Partition number - 1
amm1: ..Complex node number - 2
amm1: ..Partition = 1
amm1: ....Partition Mode - partition
amm1: ....Partition node number - 1
amm1: ....Partition status - poweredoff
amm1: ....Node - 0 (logic id)
amm1: ......Node state - poweredoff
amm1: ......Node slot - 14
amm1: ......Node type - processor
amm1: ......Node resource - 2 (1866 MHz) / 8 (2 GB)
amm1: ......Node role - secondary
amm1: ..Partition = unassigned
amm1: ....Node - 13 (logic id)
amm1: ......Node state - poweredoff
amm1: ......Node slot - 13
amm1: ......Node type - processor
amm1: ......Node resource - 2 (1866 MHz) / 8 (2 GB)
amm1: ......Node role - unassigned
Displaying the attributes of a node which belong to a complex.
$ lsflexnode b13
blade1: Flexnode state - poweredoff
blade1: Complex id - 24068
blade1: Partition id - 1
blade1: Slot14: Node state - poweredoff
blade1: Slot14: Node slot - 14
blade1: Slot14: Node type - processor
blade1: Slot14: Node resource - 2 (1866 MHz) / 8 (2 GB)
blade1: Slot14: Node role - secondary
mkflexnode
Creating a flexible node is to create a partition which including all the slots defined in the xCAT blade node.
We do NOT need to define the complex and partition nodes in the xCAT. Just use the mp.id in the blade definition to express combination information of this node. Before defining it, user can uses the 'lsfexnode' command to display all the complex, partition and nodes for a chassis, so that they can know which nodes can be combined together.
Define a blade node with slot range in the mp.id attribute
$ sudo lsdef b13
Object name: b13
arch=x86_64
chain=shell
currchain=shell
currstate=shell
groups=blade,compute,all
id=13-14
Create a partition
$ mkflexnode b13
rmflexnode
Delete a flexible node which created by the mkflexnode command.
$ rmflexnode b13
