en-US/about_SPDistributedCacheService.help.txt
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SPDistributedCacheService # Description **Type:** Specific **Requires CredSSP:** No This resource is responsible for provisioning the distributed cache to the service it runs on. This is required in your farm on at least one server (as the behavior of SPCreateFarm and SPJoinFarm is to not enroll every server as a cache server). The service will be provisioned or de-provisioned based on the Ensure property, and when provisioned the CacheSizeInMB property and ServiceAccount property will be used to configure it. The property createFirewallRules is used to determine if exceptions should be added to the windows firewall to allow communication between servers on the appropriate ports. The ServerProvisionOrder optional property is used when a pull server is handing out configurations to nodes in order to tell this resource about a specific order of enabling the caches. This allows for multiple servers to receive the same configuration, but they will always check for the server before them in the list first to ensure that it is running distributed cache. By doing this you can ensure that you do not create conflicts with two or more servers provisioning a cache at the same time. Note, this approach only makes a server check the others for distributed cache, it does not provision the cache automatically on all servers. If a previous server in the sequence does The default value for the Ensure parameter is Present. When not specifying this parameter, the distributed cache is provisioned. .PARAMETER Name Key - String A name to assign to this resource - not really used. For example - AppFabricCachingService .PARAMETER Ensure Write - string Allowed values: Present, Absent Present to ensure the current server should be running distributed cache, absent to ensure that it isn't running .PARAMETER CacheSizeInMB Required - UInt32 How many MB should be used for the cache. The maximum supported is 16384 .PARAMETER ServiceAccount Required - String The name of the service account to run the service as. This should already be registered as a managed account in SharePoint .PARAMETER ServerProvisionOrder Write - String A list of servers which specifies the order they should provision the cache in to ensure that two servers do not do it at the same time .PARAMETER CreateFirewallRules Required - Boolean Should the Windows Firewall rules for distributed cache be created? .PARAMETER InstallAccount Write - String POWERSHELL 4 ONLY: The account to run this resource as, use PsDscRunAsCredential if using PowerShell 5 .EXAMPLE This example applies the distributed cache service to the current server, also setting the rules in Windows firewall to allow communication with other cache hosts. Configuration Example { param( [Parameter(Mandatory = $true)] [PSCredential] $SetupAccount ) Import-DscResource -ModuleName SharePointDsc node localhost { SPDistributedCacheService EnableDistributedCache { Name = "AppFabricCachingService" CacheSizeInMB = 8192 ServiceAccount = "DEMO\ServiceAccount" InstallAccount = $SetupAccount CreateFirewallRules = $true } } } .EXAMPLE This example applies the distributed cache service to the current server, but will not apply the rules to allow it to communicate with other cache hosts to the Windows Firewall. Use this approach if you have an alternate firewall solution. Configuration Example { param( [Parameter(Mandatory = $true)] [PSCredential] $SetupAccount ) Import-DscResource -ModuleName SharePointDsc node localhost { SPDistributedCacheService EnableDistributedCache { Name = "AppFabricCachingService" CacheSizeInMB = 8192 ServiceAccount = "DEMO\ServiceAccount" InstallAccount = $SetupAccount CreateFirewallRules = $false } } } .EXAMPLE This example applies the distributed cache service to both "server1" and "server2". The ServerProvisionOrder will ensure that it applies it to server1 first and then server2, making sure they don't both attempt to create the cache at the same time, resuling in errors. Note: Do not allow plain text passwords in production environments. $ConfigurationData = @{ AllNodes = @( @{ NodeName = 'Server1' PSDscAllowPlainTextPassword = $true }, @{ NodeName = 'Server2' PSDscAllowPlainTextPassword = $true } ) } Configuration Example { param( [Parameter(Mandatory = $true)] [PSCredential] $SetupAccount ) Import-DscResource -ModuleName SharePointDsc node "Server1" { SPDistributedCacheService EnableDistributedCache { Name = "AppFabricCachingService" CacheSizeInMB = 8192 ServiceAccount = "DEMO\ServiceAccount" ServerProvisionOrder = @("Server1","Server2") CreateFirewallRules = $true InstallAccount = $SetupAccount } } node "Server2" { SPDistributedCacheService EnableDistributedCache { Name = "AppFabricCachingService" CacheSizeInMB = 8192 ServiceAccount = "DEMO\ServiceAccount" ServerProvisionOrder = @("Server1","Server2") CreateFirewallRules = $true InstallAccount = $SetupAccount } } } |