高可用性のArcGIS Enterpriseアーキテクチャの実装について質問があります。ドキュメントには、Windows DFSはNAS\/SANとしてサポートされていないと記載されています。複数ターゲットのDFSRがファイルの不整合のためにサポートされていない理由は理解していますが、なぜWindows File Serverがサポートされている場合にDFSの単一ターゲットがサポートされていないのでしょうか？本質的には同じ技術に基づいて構築されています。唯一の違いは、Windows File shareのポインタがサーバー共有にローカルに保持されているのに対し、DFS共有はADに保持されていることです。 Philip Heede<\/A>?<\/P><\/BODY><\/HTML>
develop the web application that will upload the file on aws s3 or google file storage.
Web application can be custumize as per the gis web and map with online arcgis .
we run the web application of develop using the java spring framework and arcgis online .replica set on awws and static server in office.database store on one system,file and DB replica store on aws.
Hi Thomas,
DFS is not supported as a destination for the config-store or directories of an ArcGIS Server site. The page you linked is referring only to the local workspace directories in the underlying Docker environment for ArcGIS Notebook Server, storing the shared directories and config-store on a DFS namespace would still not be supported. We can't necessarily recommend a specific method outside of our documentation, but the requirements on the Choose a NAS device for ArcGIS Server create a framework of requirements for the technology used. Specifically, the 'Immediate consistency' requirement disqualifies many replication technologies since they restrict reading of the written information until confirmation is received that the written information has replicated to the other sites/machines. There is potential for an asynchronous method of replication to not violate that requirement, but that has not been specifically tested at this point.
Hi,
I am looking for supported high available file share as well. Our customer would like to have two branches of one ArcGIS Server site in different geographical places. Each branch should have its own file storage, but the file storage have to be in sync - it is only one ArcGIS Server site. They told us, that they can solve this with DFS, but this is not supported for ArcGIS Server.
Does somebody figure out any supported configuration?
Thank you.
Not supported.....or supported? I too am looking at data and config store replication using DFS. What other way to sync the two IS supported?
Hey Paul, thanks for your question.
I understand your reasoning as it was the same thought process I had when considering using a DFS namespace to mask the underlying server hosting the file share for the config-store and directories of ArcGIS Server. In theory, it makes sense and should not play into the 'immediate consistency' requirement of the documentation (https://enterprise.arcgis.com/en/server/latest/install/windows/choosing-a-nas-device.htm). However, in practice, we have found multiple failures occur, especially in the publishing process. This has been reproduced in multiple test environments with the most simple DFS targets (hosted on the same machine as ArcGIS Server) and typically results in <10% failure rate during publishing. That means that for a low number of services published, the effects may not be observed, but under a production load with a large number of services being published the effect becomes much more noticeable.
So for practicality's sake, we have determined that DFS (even single-target) is not supported due to the observed behavior when attempting to implement that technology.
Hope that helps!
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