You can run Windows Diego Cells in isolation segments, which are compartmentalized resource pools for Diego Cells.

Diego Cells in one isolation segment can share routing, computing, and logging resources with other Diego Cells in the same segment, and do not use resources from other isolation segments.

To run Windows Diego Cells in multiple isolation segments, you must create and install multiple VMware Tanzu Application Service for VMs [Windows] tiles and configure each to run in a different isolation segment.

To create multiple copies of the TAS for VMs [Windows] tile, see Replicating a tile.

To associate a TAS for VMs [Windows] tile with an isolation segment, so that its Diego Cells run in that segment, see Assigning a tile to an isolation segment.

Prerequisites

To run a Windows Diego Cell in a particular isolation segment, the isolation segment must already exist in the Cloud Controller database (CCDB) before the Windows Diego Cell can be assigned to it.

To create an isolation segment in the CCDB, see Creating an isolation segment in Managing isolation segments.

Replicating a tile

To make multiple copies of the TAS for VMs [Windows] tile that you can assign to different isolation segments, you must use the Replicator tool.

To use the Replicator tool:

  1. Download the Replicator tool from the VMware Tanzu Application Service for VMs [Windows] page on Broadcom Support.

  2. Go to the folder into which you downloaded the Replicator tool.

  3. Replicate the tile by running:

    replicator-windows -name "TILE-NAME" -path PATH-TO-ORIGINAL -output PATH-TO-COPY
    

    Where:

    • TILE-NAME is a unique name for the new TAS for VMs [Windows] tile. The name must be ten or fewer characters in length and contain only alphanumeric characters, dashes, underscores, and spaces.
    • PATH-TO-ORIGINAL is the absolute path to the original .pivotal TAS for VMs [Windows] tile you downloaded from Broadcom Support.
    • PATH-TO-COPY is the absolute path for the copy of the .pivotal TAS for VMs [Windows] tile that the Replicator tool produces.

    For example:

    C:\Users\admin\> replicator-windows -name "Shiny Tile" ^
    -path c:\downloads\TileOriginal.pivotal ^
    -output c:\temp\TileCopy.pivotal
    
  4. Install and configure the Windows isolation segment, using the new .pivotal file and, follow the procedures in Installing and configuring TAS for VMs [Windows], starting with Import a Product in Install the tile.

Assigning a tile to an isolation segment

To assign a TAS for VMs [Windows] tile to an isolation segment:

  1. Click App Containers.

  2. Under Segment name, enter a name that is unique across your TAS for VMs [Windows] deployment. This is the placement tag for your Diego Cells.

  3. (Optional) To limit the number of log lines each app instance in your isolation segment can generate per second, select Enable under App log rate limit (deprecated) and enter an integer for Maximum app log lines per second. At minimum, VMware recommends using the default limit of 100. This feature is deactivated by default.

    Note This method of limiting log output from applications is deprecated. VMware recommends using the log rate limiting quota feature which provides more granular control over application log output.

  4. Click Save.

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