Minimum Requirements for Combined Domain Controller Aspect Server

What are the minimum requirements for a redundant combinded DCAS inorder to have 2 redundant OCS OPC connectivity servers (saparate) in addition to 1 redundant AC800M OPC connectivity servers (saparate) ? total of 3 redundant OPC connectivity servers (6 OPC connectivity servers in total)

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bash.farsi Rank: 1040

Asked 2 years ago

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AFAIK, the DC and AC 800M OPC server roles have very small requirements on CPU and RAM.

I can not answer for the OPC servers you did not name.

An aspect server enjoys a fast disk with write cache

Typically you are better off spending money on fast CPU (GHz) in clients. An aspect server will work with a slower CPU.

A connectivity server may need some extra disk for history logging (Basic History drain 24 bytes per sample and log)

V6.x: 8 GB RAM. 2x-4x processor cores at 2.4 GHz. RAID disk with write cache.

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by bash.farsi Rank: 1040 on 12/4/2016 8:09:56 PM | Like (0) | Report

thank you for the clarification and sorry for not specifying; the OCS connectivity servers are AC450 connectivity servers 2 redundant- (4) for an 800xA v5.1 system

by Stefan Stromqvist AKS expert

Rank: 1 on 12/4/2016 11:12:41 PM | Like (0) | Report

800xA for Advant Master is also rather lean.

Windows Server 2008 R2 (64 bit) with 8 GB RAM and a moderate CPU, eg 2.4 GHz is enough for all servers mentioned (DC, AS, CS).

CPU speed is more important in operator stations, buy as fast as possible CPU. Puré GHz counts more than number of processor cores.

by bash.farsi Rank: 1040 on 12/5/2016 3:49:23 AM | Like (0) | Report

this is the minimum requirement ?
what if we go with windows server 2008 R2 32 bit with 4GB ram and 2.4GHz CPU will not be enough ?!

by Stefan Stromqvist AKS expert

Rank: 1 on 12/5/2016 3:56:42 AM | Like (0) | Report

2.4 GHz is enough - don't know "minimum" or how slow you can go. 2 cpu cores (in a virtual machine) is enough for one aspect server. If you combine DC+AS+CS you could increase to 4 logical processors, but I suspect 2 will be enough for a moderate sized system.

4 GB RAM is OK for 32-bit, but I recommend 64-bit OS.

Normally, an aspect server, connectivity server run good on 32 bit, but with 64-bit the application can be larger since critical services have been abled to use more than 2 GB RAM.

However, I expect that less than 10% of all need that extra memory space in servers.

For clients, I would say, 64-bit is mandatory if more than one monitor is used for the operator workplace.

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Stefan Stromqvist AKS expert

Rank: 1

Answered 2 years ago

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