Dell EMC Ready Architecture for Red Hat OpenStack Platform

Transcription

1 Dell EMC Ready Architecture for Red Hat OpenStack Platform Cumulus Switch Configuration Guide Version 13 Dell EMC Service Provider Solutions

2 ii Contents Contents List of Tables...iii Trademarks... iv Notes, cautions, and warnings...v Chapter 1: Cumulus network OS switch configuration...6 Network configuration overview...7 Management switch... 7 Management switch S3048-ON config commands... 7 ToR switches...8 ToR S5248-ON config commands... 8 Glossary...25

3 List of Tables iii List of Tables Table 1: Example VLAN Assignments... 7

4 iv Trademarks Trademarks Copyright Dell EMC or its subsidiaries. All rights reserved. Microsoft, Excel and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries. Red Hat, Red Hat Enterprise Linux, the Shadowman logo, JBoss, OpenShift, Fedora, the Infinity logo, and RHCE are trademarks or registered trademarks of Red Hat, Inc., registered in the U.S. and other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries. Oracle and Java are registered trademarks of Oracle Corporation and/or its affiliates. Cumulus, Cumulus Networks, Cumulus Linux, is a registered trademark of Cumulus, registered in the U.S. and other countries. DISCLAIMER: The OpenStack Word Mark and OpenStack Logo are either registered trademarks/ service marks or trademarks/service marks of the OpenStack Foundation, in the United States and other countries, and are used with the OpenStack Foundation's permission. We are not affiliated with, endorsed or sponsored by the OpenStack Foundation or the OpenStack community.

5 Notes, cautions, and warnings v Notes, cautions, and warnings A Note indicates important information that helps you make better use of your system. A Caution indicates potential damage to hardware or loss of data if instructions are not followed. A Warning indicates a potential for property damage, personal injury, or death. This document is for informational purposes only and may contain typographical errors and technical inaccuracies. The content is provided as is, without express or implied warranties of any kind.

6 6 Cumulus network OS switch configuration Chapter 1 Cumulus network OS switch configuration Topics: Network configuration overview Management switch ToR switches This chapter describes the procedures required to configure the Cumulus Network OS on Dell EMC switches. See license and activation and Cumulus User guide for detailed Cumulus functionality. Note: Please reference Cumulus Linux ONLY.

7 Cumulus network OS switch configuration 7 Network configuration overview Config the switches based on the VLAN sample below. The user can use any VLAN configurations as per their requirements. Table 1: Example VLAN Assignments VLAN Name Management/Out of Band (OOB) Network 110 Provisioning Network VLAN 120 Tenant Tunneling Network VLAN 130 Private API Network VLAN 140 Storage Network VLAN 170 Storage Clustering Network VLAN 180 Public API Network VLAN (API, GUI) 190 External Network VLAN for Tenants (tenants' floating IP addresses) Recommended VLAN 191 Internal Networks VLAN for Tenants 200+ Management switch The provisioning and the idrac connections from the servers are connected to the management switch (ToR). Dell EMC s recommended management switches are: 1GbE connectivity S3048-ON 1/10GbE connectivity S4048-ON (optional) Management switch S3048-ON config commands Management S3048-ON switch sample configurations The following configurations are for Cumulus Network OS: Management IP configuration net add interface eth0 ip address xxx.xx.xx.xx/xx net add interface eth0 ip gateway xxx.xx.xx.xx.xxx net pending net commit MTU is optional. Default MTU is Note: Do not add space after commas in the commands below: net add interface swp1-10,17-26,49-50 net add bridge bridge ports S3048-LAG,swp1-10,swp17-26,swp52 net pending net commit

8 8 Cumulus network OS switch configuration Solution ToR bond configuration net add bond S3048-LAG bond slaves swp49,swp50 net add bond S3048-LAG bond lacp-bypass-allow net add bridge bridge ports S3048-LAG net add bond S3048-LAG net pending net commit idrac and provisioning vlan configurations net add interface swp1-10 bridge access 110 net add interface swp17-26 bridge access 120 net add interface swp52 bridge vids net add bridge bridge vids 110,120,170, net add bridge bridge vlan-aware Note: The below ip address commands are optional net add vlan 110 ip address xxx.xxx.xxx.x/xx net add vlan 110 vlan-id 110 net add vlan 110 vlan-raw-device bridge net add vlan 120 ip address xxx.xxx.xxx.x/xx net add vlan 120 vlan-id 120 net add vlan 120 vlan-raw-device bridge net pending net commit ToR switches Dell EMC s recommended architecture uses VLT for HA between the two ToR switches, which enables the servers to terminate their LAG interfaces (or bonds) into two different switches instead of one. This configuration enables active-active bandwidth utilization and provides redundancy within the rack if one ToR switch fails or requires maintenance. Dell EMC recommended ToR switches include: 10/25GbE connectivity S5248-ON 10/25GbE connectivity S5048-ON (optional) The ToR switches are responsible for providing the different network connections such as tenant networks, storage networks etc, between the different nodes of the OpenStack deployment such as compute, controller and storage nodes. ToR switches are also configured to enable different network function virtualization (NFV) features such as OVS-DPDK, SR-IOV, DVR, VLAN-Aware VMs etc. ToR S5248-ON config commands Management IP configuration net add interface eth0 ip address xxx.xx.xx.xx/xx net add interface eth0 ip gateway xxx.xx.xx.xx.xxx net pending net commit Enable interfaces on the switch with MTU 9216 MTU is optional. Default MTU is 1500.

9 Cumulus network OS switch configuration 9 Note: Do not add space after commas in the commands below: net add interface swp1-10,17-26,38-43,46-48 net pending net commit VLT Bond configurations net add bond mlag-1 bond slaves swp47,swp48 net add bond mlag-1 bond lacp-bypass-allow net add bridge bridge ports mlag-1 net add interface mlag clag backup-ip xxx.xx.xx.xx net add interface mlag clag peer-ip xxx.xxx.x.x net add interface mlag clag priority 4096 net add interface mlag clag sys-mac 44:38:39:FF:40:22 net add interface mlag ip address xxx.xxx.x.x/xx net commit Solution ToR bond configuration net add bond S3048-LAG bond slaves swp46 net add bond S3048-LAG clag id 100 net add bond S3048-LAG bond lacp-bypass-allow net add bridge bridge ports S3048-LAG net pending net commit Bond 0 configurations net add bond SAH-bond0 bond slaves swp1 net add bond SAH-bond0 clag id 11 net add bond CNTL1-bond0 bond slaves swp2 net add bond CNTL1-bond0 clag id 12 net add bond CNTL2-bond0 bond slaves swp3 net add bond CNTL2-bond0 clag id 13 net add bond CNTL3-bond0 bond slaves swp4 net add bond CNTL3-bond0 clag id 14 net add bond NOVA1-bond0 bond slaves swp5 net add bond NOVA1-bond0 clag id 15 net add bond NOVA2-bond0 bond slaves swp6 net add bond NOVA2-bond0 clag id 16 net add bond NOVA3-bond0 bond slaves swp7 net add bond NOVA3-bond0 clag id 17 net add bond STOR1-bond0 bond slaves swp8 net add bond STOR1-bond0 clag id 18 net add bond STOR2-bond0 bond slaves swp9 net add bond STOR2-bond0 clag id 19 net add bond STOR3-bond0 bond slaves swp10 net add bond STOR3-bond0 clag id 20 net add bond SAH-bond0 bond lacp-bypass-allow Note: Do not have space after comma (,) in this command. Otherwise it will fail. CNTL1-bond0,CNTL2-bond0,CNTL3-bond0,NOVA1-bond0,NOVA2-bond0,NOVA3- bond0,stor1-bond0,stor2-bond0,stor3-bond0 bond lacp-bypass-allow net pending net commit

10 10 Cumulus network OS switch configuration Bond 1 configurations net add bridge bridge ports SAH-bond0,CNTL1-bond0,CNTL2-bond0,CNTL3- bond0,nova1-bond0,nova2-bond0,nova3-bond0,stor1-bond0,stor2-bond0,stor3- bond0 net pending net commit Bond0 bridge configurations (Switching to L2 mode) net add bond SAH-bond1 bond slaves swp17 net add bond SAH-bond1 clag id 31 net add bond CNTL1-bond1 bond slaves swp18 net add bond CNTL1-bond1 clag id 32 net add bond CNTL2-bond1 bond slaves swp19 net add bond CNTL2-bond1 clag id 33 net add bond CNTL3-bond1 bond slaves swp20 net add bond CNTL3-bond1 clag id 34 net add bond NOVA1-bond1 bond slaves swp21 net add bond NOVA1-bond1 clag id 35 net add bond NOVA2-bond1 bond slaves swp22 net add bond NOVA2-bond1 clag id 36 net add bond NOVA3-bond1 bond slaves swp23 net add bond NOVA3-bond1 clag id 37 net add bond STOR1-bond1 bond slaves swp24 net add bond STOR1-bond1 clag id 38 net add bond STOR2-bond1 bond slaves swp25 net add bond STOR2-bond1 clag id 39 net add bond STOR3-bond1 bond slaves swp26 net add bond STOR3-bond1 clag id 40 net add bond SAH-bond1,CNTL1-bond1,CNTL2-bond1,CNTL3-bond1,NOVA1- bond1,nova2-bond1,nova3-bond1,stor1-bond1,stor2-bond1,stor3-bond1 bond lacpbypass-allow net pending net commit Bond1 bridge configurations (Switching to L2 mode) net add bridge bridge ports SAH-bond1,CNTL1-bond1,CNTL2-bond1,CNTL3- bond1,nova1-bond1,nova2-bond1,nova3-bond1,stor1-bond1,stor2-bond1,stor3- bond1 net pending net commit VLAN Configurations bridge net add bridge bridge vids 110,120,130,140,170,180, , net add bridge bridge vlan-aware net pending net commit Note: Sample configuration to enable IP address on vlans optional. net add vlan 110 vlan-id 110 net add vlan 110 vlan-raw-device bridge net add vlan 110 ip address xxx.xx.xxx.x/xx net pending net commit

11 Cumulus network OS switch configuration 11 NFV Feature bond configurations OPTIONAL net add bond NOVA1-dpdk bond slaves swp38 net add bond NOVA1-dpdk clag id 50 net add bond NOVA2-dpdk bond slaves swp40 net add bond NOVA2-dpdk clag id 51 net add bond NOVA3-dpdk bond slaves swp42 net add bond NOVA3-dpdk clag id 52 S interfaces This file describes the network interfaces available on your system and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/*.intf The loopback network interface auto lo iface lo inet loopback The primary network interface auto eth0 iface eth0 address xxx.xx.xx.xx/xx gateway xxx.xx.xx.xxx auto swp1 iface swp1 auto swp2 iface swp2 auto swp3 iface swp3 auto swp4 iface swp4 auto swp5 iface swp5 auto swp6 iface swp6

12 12 Cumulus network OS switch configuration auto swp7 iface swp7 auto swp8 iface swp8 auto swp9 iface swp9 auto swp10 iface swp10 auto swp17 iface swp17 auto swp18 iface swp18 auto swp19 iface swp19 auto swp20 iface swp20 auto swp21 iface swp21 auto swp22 iface swp22

13 Cumulus network OS switch configuration 13 auto swp23 iface swp23 auto swp24 iface swp24 auto swp25 iface swp25 auto swp26 iface swp26 auto swp31 iface swp31 auto swp33 iface swp33 auto swp38 iface swp38 auto swp39 iface swp39 auto swp40 iface swp40 auto swp41 iface swp41 auto swp42 iface swp42 auto swp43 iface swp43 auto swp46 iface swp46 auto swp47 iface swp47 auto swp48 iface swp48 auto CNTL1-bond0

14 14 Cumulus network OS switch configuration iface CNTL1-bond0 bond-slaves swp2 clag-id 12 auto CNTL1-bond1 iface CNTL1-bond1 bond-slaves swp18 clag-id 32 auto CNTL2-bond0 iface CNTL2-bond0 bond-slaves swp3 clag-id 13 auto CNTL2-bond1 iface CNTL2-bond1 bond-slaves swp19 clag-id 33 auto CNTL3-bond0 iface CNTL3-bond0 bond-slaves swp4 clag-id 14 auto CNTL3-bond1 iface CNTL3-bond1 bond-slaves swp20 clag-id 34 auto NOVA1-bond0 iface NOVA1-bond0 bond-slaves swp5 clag-id 15 auto NOVA1-bond1 iface NOVA1-bond1 bond-slaves swp21 clag-id 35 auto NOVA1-dpdk iface NOVA1-dpdk bond-slaves swp38 clag-id 50 auto NOVA2-bond0 iface NOVA2-bond0 bond-slaves swp6 clag-id 16

15 Cumulus network OS switch configuration 15 auto NOVA2-bond1 iface NOVA2-bond1 bond-slaves swp22 clag-id 36 auto NOVA2-dpdk iface NOVA2-dpdk bond-slaves swp40 clag-id 51 auto NOVA3-bond0 iface NOVA3-bond0 bond-slaves swp7 clag-id 17 auto NOVA3-bond1 iface NOVA3-bond1 bond-slaves swp23 clag-id 37 auto NOVA3-dpdk iface NOVA3-dpdk bond-slaves swp42 clag-id 52 auto S3048-LAG iface S3048-LAG bond-slaves swp46 clag-id 100 auto SAH-bond0 iface SAH-bond0 bond-slaves swp1 clag-id 11 auto SAH-bond1 iface SAH-bond1 bond-slaves swp17 clag-id 31 auto STOR1-bond0 iface STOR1-bond0 bond-slaves swp8 clag-id 19 auto STOR1-bond1 iface STOR1-bond1 bond-slaves swp24 clag-id 38 auto STOR2-bond0

16 16 Cumulus network OS switch configuration iface STOR2-bond0 bond-slaves swp9 clag-id 18 auto STOR2-bond1 iface STOR2-bond1 bond-slaves swp25 clag-id 39 auto STOR3-bond0 iface STOR3-bond0 bond-slaves swp10 clag-id 20 auto STOR3-bond1 iface STOR3-bond1 bond-slaves swp26 clag-id 40 auto bridge iface bridge bridge-ports CNTL1-bond0 CNTL1-bond1 CNTL2-bond0 CNTL2-bond1 CNTL3-bond0 CNTL3-bond1 NOVA1-bond0 NOVA1-bond1 NOVA1-dpdk NOVA2-bond0 NOVA2-bond1 NOVA2-dpdk NOVA3-bond0 NOVA3-bond1 NOVA3-dpdk S3048-LAG SAH-bond0 SAH-bond1 STOR1-bond0 STOR1-bond1 STOR2-bond0 STOR2-bond1 STOR3-bond0 STOR3-bond1 mlag-1 bridge-vids bridge-vlan-aware yes auto mlag-1 iface mlag-1 bond-slaves swp47 swp48 auto mlag iface mlag address xxx.xxx.x.x/xx clagd-backup-ip xxx.xx.xx.xx clagd-peer-ip clagd-priority 2048 clagd-sys-mac 44:38:39:FF:40:22 S interfaces This file describes the network interfaces available on your system and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/*.intf The loopback network interface auto lo iface lo inet loopback

17 Cumulus network OS switch configuration 17 The primary network interface auto eth0 iface eth0 address xxx.xx.xx.xx/xx gateway xxx.xx.xx.xxx auto swp1 iface swp1 auto swp2 iface swp2 auto swp3 iface swp3 auto swp4 iface swp4 auto swp5 iface swp5 auto swp6 iface swp6 auto swp7 iface swp7 auto swp8 iface swp8 auto swp9 iface swp9 auto swp10 iface swp10

18 18 Cumulus network OS switch configuration auto swp17 iface swp17 auto swp18 iface swp18 auto swp19 iface swp19 auto swp20 iface swp20 auto swp21 iface swp21 auto swp22 iface swp22 auto swp23 iface swp23 auto swp24 iface swp24 auto swp25 iface swp25 auto swp26 iface swp26

19 Cumulus network OS switch configuration 19 auto swp38 iface swp38 auto swp39 iface swp39 auto swp40 iface swp40 auto swp41 iface swp41 auto swp42 iface swp42 auto swp43 iface swp43 auto swp46 iface swp46 auto swp47 iface swp47 auto swp48 iface swp48 auto CNTL1-bond0 iface CNTL1-bond0 bond-slaves swp2 bridge-vids clag-id 12 auto CNTL1-bond1 iface CNTL1-bond1 bond-slaves swp18 bridge-vids clag-id 32 auto CNTL2-bond0 iface CNTL2-bond0 bond-slaves swp3 bridge-vids clag-id 13 auto CNTL2-bond1 iface CNTL2-bond1 bond-slaves swp19 bridge-vids clag-id 33 auto CNTL3-bond0 iface CNTL3-bond0 bond-slaves swp4 bridge-vids clag-id 14

20 20 Cumulus network OS switch configuration auto CNTL3-bond1 iface CNTL3-bond1 bond-slaves swp20 bridge-vids clag-id 34 auto NOVA1-bond0 iface NOVA1-bond0 bond-slaves swp5 bridge-vids clag-id 15 auto NOVA1-bond1 iface NOVA1-bond1 bond-slaves swp21 bridge-vids 170 clag-id 35 auto NOVA1-dpdk iface NOVA1-dpdk bond-slaves swp38 bridge-vids clag-id 50 auto NOVA2-bond0 iface NOVA2-bond0 bond-slaves swp6 bridge-vids clag-id 16 auto NOVA2-bond1 iface NOVA2-bond1 bond-slaves swp22 bridge-vids 170 clag-id 36 auto NOVA2-dpdk iface NOVA2-dpdk bond-slaves swp40 bridge-vids clag-id 51 auto NOVA3-bond0 iface NOVA3-bond0 bond-slaves swp7 bridge-vids clag-id 17 auto NOVA3-bond1 iface NOVA3-bond1 bond-slaves swp23 bridge-vids 170 clag-id 37

21 Cumulus network OS switch configuration 21 auto NOVA3-dpdk iface NOVA3-dpdk bond-slaves swp42 bridge-vids clag-id 52 auto S4048-LAG iface S4048-LAG bond-slaves swp46 bridge-vids clag-id 100 auto SAH-bond0 iface SAH-bond0 bond-slaves swp1 bridge-vids clag-id 11 auto SAH-bond1 iface SAH-bond1 bond-slaves swp17 bridge-vids clag-id 31 auto STOR1-bond0 iface STOR1-bond0 bond-slaves swp8 bridge-vids 170 clag-id 19 auto STOR1-bond1 iface STOR1-bond1 bond-slaves swp24 bridge-vids 180 clag-id 38 auto STOR2-bond0 iface STOR2-bond0 bond-slaves swp9 bridge-vids 170 clag-id 18 auto STOR2-bond1 iface STOR2-bond1 bond-slaves swp25 bridge-vids 180 clag-id 39 auto STOR3-bond0 iface STOR3-bond0

22 22 Cumulus network OS switch configuration bond-slaves swp10 bridge-vids 170 clag-id 20 auto STOR3-bond1 iface STOR3-bond1 bond-slaves swp26 bridge-vids 180 clag-id 40 auto bridge iface bridge bridge-ports CNTL1-bond0 CNTL1-bond1 CNTL2-bond0 CNTL2-bond1 CNTL3-bond0 CNTL3-bond1 NOVA1-bond0 NOVA1-bond1 NOVA1-dpdk NOVA2-bond0 NOVA2-bond1 NOVA2-dpdk NOVA3-bond0 NOVA3-bond1 NOVA3-dpdk S4048-LAG SAH-bond0 SAH-bond1 STOR1-bond0 STOR1-bond1 STOR2-bond0 STOR2-bond1 STOR3-bond0 STOR3-bond1 mlag-1 bridge-vids bridge-vlan-aware yes auto mlag-1 iface mlag-1 bond-slaves swp47 swp48 auto mlag iface mlag address xxx.xxx.x.x/xx clagd-backup-ip xxx.xx.xx.xx clagd-peer-ip xxx.xxx.x.x clagd-priority 4096 clagd-sys-mac 44:38:39:FF:40:22 auto vlan110 iface vlan110 address xxx.xxx.xxx.x/xx vlan-id 110 vlan-raw-device bridge auto vlan120 iface vlan120 address xxx.xxx.xxx.x/xx vlan-id 120 vlan-raw-device bridge auto vlan140 iface vlan140 address xxx.xxx.xxx.x/xx vlan-id 140 vlan-raw-device bridge auto vlan170 iface vlan170 address xxx.xxx.xxx.x/xx vlan-id 170 vlan-raw-device bridge

23 Cumulus network OS switch configuration 23 SR-IOV switch configurations Switch configuration for SR-IOV on both the S interfaces on page 11 and S interfaces on page 16 switches will be: $ net add interface swp38,swp40,swp42 $ net add bridge bridge ports swp38,swp40,swp42 $ net add interface swp38 bridge vids $ net add interface swp40 bridge vids $ net add interface swp42 bridge vids Additional configurations for both S interfaces on page 11 and S interfaces on page 16 switches auto swp38 iface swp38 bridge-vids auto swp40 iface swp40 bridge-vids auto swp42 iface swp42 bridge-vids auto bridge iface bridge bridge-ports CNTL1-bond0 CNTL1-bond1 CNTL2-bond0 CNTL2-bond1 CNTL3-bond0 CNTL3-bond1 MLAG NOVA1-bond0 NOVA1-bond1 NOVA2-bond0 NOVA2- bond1 NOVA3-bond0 NOVA3-bond1 S4048-LAG SAH-bond0 SAH-bond1 STOR1-bond0 STOR1-bond1 STOR2-bond0 STOR2-bond1 STOR3-bond0 STOR3-bond1 swp38 swp40 swp42 bridge-vids bridge-vlan-aware yes OVS-DPDK switch configurations Switch configuration for OVS-DPSK on both the S interfaces on page 11 and S interfaces on page 16 switches will be: Switch configurations for OVS-DPDK on both switches according to the four ports OVS-DPDK will be: $ net add interface swp38-43 $ net add bond NOVA1-bond10 bond slaves swp38-39 clag id 59 $ net add bond NOVA2-bond10 bond slaves swp40-41 clag id 61 $ net add bond NOVA3-bond10 bond slaves swp42-43 clag id 63 $ net add bond NOVA1-bond10 bridge vids $ net add bond NOVA2-bond10 bridge vids $ net add bond NOVA3-bond10 bridge vids Additional configurations for both S interfaces on page 11 and S interfaces on page 16 switches auto NOVA1-bond10 iface NOVA1-bond10 bond-slaves swp38 swp39 bridge-vids clag-id 59

24 24 Cumulus network OS switch configuration mtu 9000 auto NOVA2-bond10 iface NOVA2-bond10 bond-slaves swp40 swp41 bridge-vids clag-id 61 mtu 9000 auto NOVA3-bond10 iface NOVA3-bond10 bond-slaves swp42 swp43 bridge-vids clag-id 63 mtu 9000

25 Glossary 25 Glossary API Application Programing Interface is a specification that defines how software components can interact. BMC/iDRAC Enterprise Baseboard management controller. An on-board microcontroller that monitors the system for critical events by communicating with various sensors on the system board, and sends alerts and log events when certain parameters exceed their preset thresholds. BOSS The Boot Optimized Storage Solution (BOSS) enables customers to segregate operating system and data on server-internal storage. This is helpful in the Hyper-Converged Infrastructure (HCI) and Software Defined Storage (SDS) arenas, to separate operating system drives from data drives, and implement hardware RAID mirroring (RAID1) for OS drives. Bundle A customer-orderable solution that consists of: All server, network, and storage hardware needed to install and operate the solution as outlined All necessary solution software licenses needed to install and operate the solution as outlined CDH Cloudera Distribution for Apache Hadoop Cloud computing See Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. Cluster A set of servers dedicated to OpenStack that can be attached to multiple distribution switches. Compute node The hardware configuration that best supports the hypervisor server or Nova compute roles.

26 26 Glossary DevOps Development Operations (DevOps) is an operational model for managing data centers using improved automated deployments, shortened lead times between fixes, and faster mean time to recovery. See DIMM Dual In-line Memory Module DNS The domain name system (DNS) defines how Internet domain names are located, and translated into Internet Protocol (IP) addresses. FQDD A fully qualified device descriptor (FQDD) is a method used to describe a particular component within a system or subsystem, and is used for system management and other purposes. FQDN A fully qualified domain name (FQDN) is the portion of an Internet Uniform Resource Locator (URL) that fully identifies the server to which an Internet request is addressed. The FQDN includes the second-level domain name, such as "dell.com", and any other levels as required. GUI Graphical User Interface - A visual interface for human interaction with the software, taking inputs and generating easy to understand visual outputs. Hypervisor Software that runs virtual machines (VMs). IaaS Infrastructure as a Service. Infrastructure node Systems that handle the control plane and deployment functions. ISV Independent Software Vendor.

27 Glossary 27 JBOD Just a Bunch of Disks LAG Link Aggregation Group. LOM LAN on motherboard. LVM Logical Volume Management ML2 The Modular Layer 2 plug-in is a framework that allows OpenStack to utilize different layer 2 networking technologies. NFS The Network File System (NFS) is a distributed filesystem that allows a computer user to access, manipulate, and store files on a remote computer, as though they resided on a local file directory. NIC Network Interface Card Node One of the servers in the cluster. NUMA Non-Uniform Memory Access Overcloud The functional cloud that is available to run guest VMs and workloads. Pod An installation comprised of three racks, and consisting of servers, storage, and networking.

28 28 Glossary REST REST - Representational State Transfer (also ReST). Relies upon stateless, client-server, cacheable communications protocol to access the API. RHOSP Red Hat OpenStack Platform RPC Remote Procedure Call SAH The Solution Admin Host (SAH) is a physical server that supports VMs for the Undercloud machines needed for the cluster to be deployed and operated. SDS Software-defined storage (SDS) is an approach to computer data storage in which software is used to manage policy-based provisioning and management of data storage, independent of the underlying hardware. SDN Software-defined Network (SDN) is where the software will define, create, use and destroy different networks as needed. Stamp A stamp is the collection of all servers and network switches in the solution. Storage Node The hardware configuration that best supports SDS functions such as Red Hat Ceph Storage. ToR Top-of-rack switch/router. U U used in the definition of the size of server, example 1U or 2U. A "U" is a unit of measure equal to 1.75 inches in height.

29 Glossary 29 Undercloud The Undercloud is the system used to control, deploy, and monitor the Overcloud - it is a single node OpenStack deployment completely under the administrators control. The Undercloud is not HA configured. VLT A Virtual Link Trunk (VLT) is the combined port channel between an attached device (ToR switch) and the VLT peer switches. VLTi A Virtual Link Trunk Interconnect (VLTi) is an interconnect used to synchronize states between the VLT peer switches. Both endpoints must be the same speed, i.e. 40Gb 40Gb; 1G interfaces are not supported. VM Virtual Machine - a simulation of a computer system.