Following are the requirements for the dedicated Platform server node managing the Swarm implementation:
System | 2+ CPU cores 8+ GB RAM | Virtual machine The OVA file is configured to use 2 cores. | |
---|---|---|---|
Storage | 80+ GB available disk storage | Swarm nodes need to direct syslog logging messages at a dedicated partition on the Platform server. Clusters that are large or have increased logging loads require more storage for logging. | |
OS | Ubuntu Server 16.04 (Xenial) | http://releases.ubuntu.com/xenial/ or Platform Server OVA Image | |
Network | Static IP address | Configure a network interface with a static IP address on the managed network before installing Swarm Platform. Note: Platform needs to be installed using Offline Mode if firewall settings prevent Internet access. | |
IPMI | Enabled IPMI 2.0 or newer | To control the power state of managed chassis, Platform uses IPMI (Intelligent Platform Management Interface), a standard for out-of-band (LOM, Lights-Out Management) device management and monitoring using a dedicated management channel. iDRAC-equipped nodes to be used for Swarm Storage must have the setting Enable IPMI Over LAN enabled, which allows Platform Server to power the machine and commission the node.
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The Platform Server manages the allocation of IP addresses. There are three types of IP addresses (depending on the NIC configuration):
Dynamic Range — IP addresses used for enlistment and commissioning
During bootstrap, Platform will reject a dynamic range that takes up more than 25% of the address space; if this is intended and necessary, you may add a Platform will also reject any dynamic range that overlaps with IP addresses that are currently used. |
Reserved Range — Special IP addresses for routers, network devices, etc.
Swarm nodes — IP addresses used for storage processes
Following are two scenarios for managed IP addresses:
Storage subnet |
| (255.255.255.0) |
Set of all IP addresses |
| (254 addresses) |
Platform Server's IP |
| (1 address) |
Dynamic Range (via |
| (55 addresses) |
Reserved Range (via |
| (9 addresses) |
IP addresses available for Storage nodes |
| (189 addresses) |
Implications:
There can be 189 Storage nodes on the network
55 chassis can go through enlistment/commissioning at a time
Storage subnet |
| (255.255.0.0) |
Set of all IP addresses |
| (65,534 addresses) |
Platform Server's IP |
| (1 address) |
Dynamic Range (via |
| (100 addresses) |
Reserved Range (via |
| (9 addresses) |
IP addresses available for Storage nodes |
| (65,424 addresses) |
Implications:
There can be 65,424 Storage nodes on the network
100 chassis can go through enlistment/commissioning at a time