memory considerations for Active Directory

Location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters

Name: EDB max ver pages (increment over the minimum)
Type: REG_DWORD
Value:
Note The value for the setting is the number of 16KB memory chunks (or 32KB memory chunks on a 64-bit processor) that will be reserved. For example:
9600 = ~150 MB 32-bit, ~600 MB 64-bit
12800 = ~200 MB 32-bit, ~800 MB 64-bit
16000 = ~250 MB 32-bit, ~1000 MB 64-bit
19200 = ~300 MB 32-bit, ~1200 MB 64-bit

When to increase? When allocated buckets are on high values...

0x80040e14 during Azure ADConnect upgrade

During upgrade Azure ADConnect to Entra AD Connect 2.3.8.0 we've received 0x80040e14 error. At first we had an idea that it's connected with permission or communication limitation on firewall, after quick search possible reasons:

missing column

or not enough memory for sql

For us it's near not enough memory reason, but we have still SQL Express, so during upgrade there is no place for finishing upgrade (limit 10GB for database size). We must find if we have any not needed objects to remove them from Azure or to move to full SQL server.