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The instructions below skip most of this and directly invoke the SEBA Deployer from the BMC, iLO or iDRAC of a physical server. The basic workflow of the SEBA deployer is to copy a base image to the first controller in the cluster and then read the contents of a configuration file (typically called user_config.yaml) to deploy the base OS and all additional software to the rest of the nodes in the cluster.
Pre-Installation Requirements for SEBA Cluster
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Hardware Requirements:
SEBA is a fully integrated stack from the hardware up to and including the application, so for best results it is necessary to use one of the tested hardware configurations. Although SEBA is intended to run on a variety of different hardware platforms, it includes a hardware detector component that customizes each installation based on the hardware present and will need (possibly minor) changes to run on additional hardware configurationsconfigurations. The primary focus of Akraino Release 2 self-certification testing for the SEBA blueprint is the Nokia Open Edge servers, so some issues may be encountered with other server types.
- Minimum of 3 nodes.
- Total Physical Compute Cores: 60 (120 vCPUs)
- Total Physical Compute Memory: 192GB minimum per node
- Total SSD-based OS Storage: 2.8 TB (6 x 480GB SSDs)
- Total Application-based Raw Storage: 5.7 TB (6 x 960GB SSDs)
- Networking Per Server: Apps - 2 x 25GbE (per Server) and DCIM - 2 x 10GbE + 1 1Gbt (shared)
The specific recommended configuration as of the Release 2 time frame is the Open Edge configuration for a single cluster documented in the Radio Edge Cloud Validation Lab, with only three server blades populated (instead of five server blades for REC).
BIOS Requirements: NEEDS UPDATES - edit REC to SEBA, check if auto config supported
- BIOS set to Legacy (Not UEFI)
- CPU Configuration/Turbo Mode Disabled
- Virtualization Enabled
- IPMI Enabled
- Boot Order set with Hard Disk listed as first in the list.
As of Release 1, Radio Edge Cloud does not yet include automatic configuration for a pre-boot environment. The following versions were manually loaded on the Open Edge servers in the Radio Edge Cloud Validation Lab using the incomplete but functional script available here. In the future, automatic configuration of the pre-boot environment is expected to be a function of the Regional Controller under the direction of the REC pod create workflow script.
- BIOS1: 3B06
- BMC1: 3.13.00
- BMC2: 3.08.00
- CPLD: 0x01
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Note: You have a better chance at creating a working YAML by editing an existing file or using the template rather than starting from scratch.
Installing SEBA
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Obtaining the ISO Image
Recent builds can be obtained from the Akraino Nexus server. Choose either "latest" or a specific build number from the release images directory and download the file install.iso. Build number 185 is the Akraino Release 1 image from the 4th of October, 2019 and was used for the initial validation of the SEBA blueprint. Options for booting the ISO on your target hardware include NFS, HTTP, or USB memory stick. You must place the ISO in a suitable location (e.g., NFS server, HTTP(S) server or USB memory stick) before starting the boot process. The file bootcd.iso, which is also in the same directory, is used only when deploying via the Akraino Regional Controller using the Telco Appliance Remote Installer. You can ignore bootcd.iso when following the manual procedure below.
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You should see: Installation complete, Installation Succeeded.
Go to SEBA Blueprint Test Document and follow the steps outlined there to ensure that all nodes and services were properly deployed.
Deployment Failures
Sometimes failures happen, usually due to misconfigurations or incorrect addresses.
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