From 364189da11e212f238db091ff98a016318bcb4f3 Mon Sep 17 00:00:00 2001 From: Gergely Csatari Date: Wed, 26 Sep 2018 14:07:05 +0200 Subject: Modifications to the deployment scenarios As the current scope of the document are the edge inside the telecom operators network (before the radio) the definition of Small edge is changed to represent the "more space available". The following changes are added to Small edge - Changing physical sizes to metric system - Minimal depth is changed to 60 mm based on our feedback from customers The following changes added to all deployment scenarios: - Added witdh definition ot the physical size - Added front cooling, access and cabling - Added NEBS 3 compliancy - Smart NIC support added - Added a note about maintenance staff skillset Note: In the future we should extend the scope of the document and define an other deployment option for edge sites after the radio. Change-Id: I342b8f028efcd1d865ba446b4258e9d84b58139b Signed-off-by: Gergely Csatari --- docs/development/requirements/requirements.rst | 30 ++++++++++++++++++++------ 1 file changed, 23 insertions(+), 7 deletions(-) diff --git a/docs/development/requirements/requirements.rst b/docs/development/requirements/requirements.rst index abcffce..7e3e90d 100644 --- a/docs/development/requirements/requirements.rst +++ b/docs/development/requirements/requirements.rst @@ -225,7 +225,7 @@ Small Edge - 8 GB RAM (4 DIMM) - 1 * 240 GB SSD (2 * 2.5) -- Maximum hardware specs: 1 unit of +- Maximum hardware specs: 5 unit of - 16 cores - 64 GB RAM @@ -234,15 +234,20 @@ Small Edge - Power for a site: < 10 kW - Physical access of maintainer: Rare, maintenance staff may only show up in this kind of site when machines initialize for the first time or a machine - is down + is down. Maintenance staff is skilled in mechanical engineering and not in + IT. - Physical security: none (Optionally secure booting is needed) - Expected frequency of updates to hardware: 3-4 year refresh cycle - Expected frequency of updates to firmware: 6-12 months - Expected frequency of updates to control systems (e.g. OpenStack or Kubernetes controllers): ~ 12 - 24 months, has to be possible from remote management -- Physical size: Not all the sites will have 36 inch depth capability. Some sites - might be limited to 12 inch depth. +- Physical size: 482.6 mm (19 inch) witdth rack. Not all the sites will have + 1000 mm (36 inch) depth capability. Some sites might be limited to 600 mm + (12 inch) depth. +- Cooling: front cooling +- Access / cabling: front +- NEBS 3 compliant - Number of edge cloud instances: depends on demands (3000+) - Services might be deployed here: MEC, or other services which have strict requirements on latency. Services deployed in this kind of sites have huge @@ -255,6 +260,7 @@ Small Edge be used in small edge site if virtualization increases structure/network complexity, reduces service performance, or costs more resources. Bare-metal is common in small edge sites. Container would also be a future choice if virtualization was needed +- Smart NICs are supported - Storage: mainly local storage. Medium Edge @@ -265,7 +271,8 @@ Medium Edge - Minimum hardware specs: 2 Rack Unit (RU) - Maximum hardware specs: 20 Rack Unit - Power for a site: 10 - 20 10 kW -- Physical access of maintainer: Rare +- Physical access of maintainer: Rare. Maintenance staff is skilled in + mechanical engineering and not in IT. - Physical security: Medium, probably not in a secure data center, probably in a semi-physically secure environment; each device has some authentication (such as certificate) to verify it's a legitimate piece of hardware deployed @@ -276,6 +283,9 @@ Medium Edge - Expected frequency of updates to firmware: Never unless required to fix blocker/critical bug(s) - Expected frequency of updates to control systems (e.g. OpenStack or Kubernetes controllers): 12 - 24 months - Physical size: TBD +- Cooling: front cooling +- Access / cabling: front +- NEBS 3 compliant - Number of edge cloud instances: 3000+ - Services might be deployed here: MEC, RAN, CPE, etc. - Remote network connection reliability: 24/7 (high uptime but connectivity is @@ -285,23 +295,28 @@ Medium Edge - Degree of virtualization: depends on site conditions and service requirements. VM, container may form hybrid virtualization layer. Bare-metal is possible in middle sites +- Smart NICs are supported - Storage: local storage and distributed storage, which depends on site conditions and services’ needs Large Edge ========== -- Distance to base station: 100 x km (0.8