Guest OS (Windows Server) Configuration - viewLinc 5.2

Berkeley DB Reliable Write Configuration Checklist viewLinc Enterprise Server
Product status
Document code
DOC261041-A
ft:locale
en-US
Product
viewLinc 5.2
Document type
Checklist
Technical note
Guidance Action for Hyper-V Action for VMware
☐ Disable VSS shadow copies on the BDB data volume In Server Manager > File and Storage Services > Volumes, right-click the BDB volume and select Configure Shadow Copies > Disable

Alternatively, run the following command: vssadmin delete shadows /for=D:

(See this document for more details.)

 Same guest OS action described for Hyper-V applies. Additionally, ensure theVMware VSS snapshot provider is not configured to quiesce the BDB volume. In VMware Tools settings, disable quiesced snapshots for this VM.
☐ Ensure Turn off Windows write-cache buffer flushing is unchecked Navigate to Device Manager > Disk Drives > <BDB disk> > Properties > Policies and uncheck "Turn off Windows write-cache buffer flushing on the device". (This is the single most destructive setting for BDB.) Same guest OS action described for Hyper-V applies.

Navigate to Device Manager > Disk Drives > <BDB disk> > Properties > Policies and uncheck "Turn off Windows write-cache buffer flushing on the device".

☐ Disable NTFS Last Access Time updates Run the following command as admin: fsutil behavior set disablelastaccess 1

(See this document for more details.)

This reduces unnecessary metadata write I/O on high-frequency BDB read workloads.		 Same guest OS action described for Hyper-V applies.

Run the following command as admin: fsutil behavior set disablelastaccess 1

☐ Exclude BDB directory from antivirus real-time scanning Navigate to Windows Security > Virus & threat protection > Add or remove exclusions. Select Add an exlusion > folder and specify the BDB data directory (by default, C:\Users\Public\Documents\Vaisala\Vaisala viewLinc\db\hist). Apply the same exclusion in any third-party anti-virus installed on the guest. Same guest OS action described for Hyper-V applies.

Also confirm that no VMware-level endpoint security product (Carbon Black, NSX Guest Introspection) is performing file-level inspection on BDB files.
☐ Disable Windows Search indexing on BDB volume Right-click the BDB volume in Explorer > Properties and uncheck Allow files on this drive to have contents indexed. Same guest OS action described for Hyper-V applies.
☐ Set Windows power plan to High Performance Run the following command as admin: powercfg /setactive 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c

To verify that the high-performance plan is active run the following command: powercfg /getactivescheme

(See this document for more details.)

 Same guest OS action described for Hyper-V applies. Additionally set the VMware hostpower policy: Navigate to vSphere Client > Host > Configure and set Power Management to High Performance.
☐ Disable disk idle/spin-down on BDB volume Navigate to Power Options > Advanced settings > Hard disk and specify Never (0 minutes) for Turn off hard disk after Same guest OS action described for Hyper-V applies.

Virtual disks backed by SSD data stores are not subject to spin-down but the setting should still be confirmed as Never.