ArcGIS Enterprise portal's ArcGIS Datastore (relational) disk space email

Question

Hello,

Last week the ArcGIS Enterprise admin contacts we received this email:

The ArcGIS Enterprise portal's ArcGIS Datastore (relational) on MachineName.DomainName.com machine is running out of disk space on D: \arcgisdatastore\pgdata. Increase disk space on this machine. Learn more.

This is an automated email. Please do not reply.

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While checking the disk space on the D drive, we saw that there were still 26 GB available of a total of 150 GB.

For further context, the D: \arcgisdatastore\pgdata folder had a size of 25,3 GB. This machine has ArcGIS Server and ArcGIS Data Store installed. ArcGIS Data Store is completely installed in D.

(The C: drive had also sufficient GBs of free space).

So, we didn't increase the D drive size or free up any space because we didn't consider it necessary.

However, this week we have experienced some issues with the ArcGIS Data Store not validating, etc. So somehow it made us come back to this previous automatic email of last week (we understand that the recent underlying issues could be due to something else too).

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Is it 'expected' that the ArcGIS system would send this email when we still had 26 GB of free space in D?

The only Esri docs where I found some related information -but not a complete answer- are those below:

https://enterprise.arcgis.com/en/portal/latest/administer/windows/configure-security.htm#ESRI_SECTION1_BE59D8C8264E40A8BE5F92E3D1D60762

https://enterprise.arcgis.com/en/system-requirements/10.9.1/windows/arcgis-data-store-system-requirements.htm#ESRI_SECTION1_37788D8DDB6C45B59442250E35C3AAB0

Many thanks already,

PS: Is it because the D drive had less than 30 GB (which is the 20% of 150 GB of total size of D)?

RClavero · Answer

Hello @CodyPatterson, thank you for your response.

We will do that: keep additional space (we already increased the free space available to around 50 GB). I also checked at the time, and it has never been in READONLY mode, but I appreciate you pointing that out.

CodyPatterson · Answer

Hey @RClavero

It definitely is plausible that it would trigger based on some threshold limit for free space, the documentation doesn't specific exactly what that limit is, but different databases will raise their own flags based on their own predetermined thresholds.

It may have triggered the alert because of different files that the DB is writing, be it failed transactional log space, temporary files or indexing, and possibly even insufficient backup space, as that is very important as well.

Your recent issues point me to think that your datastore may be in READONLY mode. I would log onto the datastore server, and use the describedatastore tool to verify that it is in READWRITE, if it is in READONLY, you'll need to use the changedatastoremode for that.

https://enterprise.arcgis.com/en/portal/11.4/administer/windows/data-store-utility-reference.htm

I shoot to always have around 50-100GB free on the Datastore server, give it some wiggle room to prevent emails like that.

Cody