functions/Get-DbaMemoryCondition.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Get-DbaMemoryCondition { <# .SYNOPSIS Determine the memory conditions from SQL Server ring buffers. .DESCRIPTION The information from SQL Server ring buffers can be used to determine the memory conditions on the server when paging occurs. This command is based on a query provided by Microsoft support. Reference KB article: https://support.microsoft.com/en-us/help/918483/how-to-reduce-paging-of-buffer-pool-memory-in-the-64-bit-version-of-sq .PARAMETER SqlInstance The target SQL Server instance or instances. .PARAMETER SqlCredential Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential). .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: Memory Author: IJeb Reitsma Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Get-DbaMemoryCondition .EXAMPLE PS C:\> Get-DbaMemoryCondition -SqlInstance sqlserver2014a Returns the memory conditions for the selected instance .EXAMPLE PS C:\> Get-DbaCmsRegServer -SqlInstance sqlserver2014a -Group GroupName | Get-DbaMemoryCondition | Out-GridView Returns the memory conditions for a group of servers from SQL Server Central Management Server (CMS). Send output to GridView. #> [CmdletBinding()] param ( [parameter(Position = 0, Mandatory, ValueFromPipeline)] [Alias("ServerInstance", "SqlServer", "SqlServers")] [DbaInstance[]]$SqlInstance, [PSCredential]$SqlCredential, [switch]$EnableException ) begin { $sql = "SELECT CONVERT (varchar(30), GETDATE(), 121) as Runtime, DATEADD (ms, -1 * (sys.ms_ticks - a.[RecordTime]), GETDATE()) AS NotificationTime, [NotificationType], [MemoryUtilizationPercent], [TotalPhysicalMemoryKB], [AvailablePhysicalMemoryKB], [TotalPageFileKB], [AvailablePageFileKB], [TotalVirtualAddressSpaceKB], [AvailableVirtualAddressSpaceKB], [NodeId], [SQLReservedMemoryKB], [SQLCommittedMemoryKB], [RecordId], [Type], [Indicators], [RecordTime], sys.ms_ticks AS [CurrentTime] FROM (SELECT x.value('(//Record/ResourceMonitor/Notification)[1]', 'varchar(30)') AS [NotificationType], x.value('(//Record/MemoryRecord/MemoryUtilization)[1]', 'bigint') AS [MemoryUtilizationPercent], x.value('(//Record/MemoryRecord/TotalPhysicalMemory)[1]', 'bigint') AS [TotalPhysicalMemoryKB], x.value('(//Record/MemoryRecord/AvailablePhysicalMemory)[1]', 'bigint') AS [AvailablePhysicalMemoryKB], x.value('(//Record/MemoryRecord/TotalPageFile)[1]', 'bigint') AS [TotalPageFileKB], x.value('(//Record/MemoryRecord/AvailablePageFile)[1]', 'bigint') AS [AvailablePageFileKB], x.value('(//Record/MemoryRecord/TotalVirtualAddressSpace)[1]', 'bigint') AS [TotalVirtualAddressSpaceKB], x.value('(//Record/MemoryRecord/AvailableVirtualAddressSpace)[1]', 'bigint') AS [AvailableVirtualAddressSpaceKB], x.value('(//Record/MemoryNode/@id)[1]', 'bigint') AS [NodeId], x.value('(//Record/MemoryNode/ReservedMemory)[1]', 'bigint') AS [SQLReservedMemoryKB], x.value('(//Record/MemoryNode/CommittedMemory)[1]', 'bigint') AS [SQLCommittedMemoryKB], x.value('(//Record/@id)[1]', 'bigint') AS [RecordId], x.value('(//Record/@type)[1]', 'varchar(30)') AS [Type], x.value('(//Record/ResourceMonitor/Indicators)[1]', 'bigint') AS [Indicators], x.value('(//Record/@time)[1]', 'bigint') AS [RecordTime] FROM (SELECT CAST (record as xml) FROM sys.dm_os_ring_buffers WHERE ring_buffer_type = 'RING_BUFFER_RESOURCE_MONITOR') AS R(x)) a CROSS JOIN sys.dm_os_sys_info sys ORDER BY a.[RecordTime] ASC" } process { foreach ($instance in $SqlInstance) { try { $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential -MinimumVersion 9 } catch { Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue } try { $results = $server.Query($sql) } catch { Stop-Function -Message "Issue collecting data" -Target $instance -ErrorRecord $_ } foreach ($row in $results) { [PSCustomObject]@{ ComputerName = $server.ComputerName InstanceName = $server.ServiceName SqlInstance = $server.DomainInstanceName Runtime = $row.runtime NotificationTime = $row.NotificationTime NotificationType = $row.NotificationType MemoryUtilizationPercent = $row.MemoryUtilizationPercent TotalPhysicalMemory = [dbasize]$row.TotalPhysicalMemoryKB * 1024 AvailablePhysicalMemory = [dbasize]$row.AvailablePhysicalMemoryKB * 1024 TotalPageFile = [dbasize]$row.TotalPageFileKB * 1024 AvailablePageFile = [dbasize]$row.AvailablePageFileKB * 1024 TotalVirtualAddressSpace = [dbasize]$row.TotalVirtualAddressSpaceKB * 1024 AvailableVirtualAddressSpace = [dbasize]$row.AvailableVirtualAddressSpaceKB * 1024 NodeId = $row.NodeId SQLReservedMemory = [dbasize]$row.SQLReservedMemoryKB * 1024 SQLCommittedMemory = [dbasize]$row.SQLCommittedMemoryKB * 1024 RecordId = $row.RecordId Type = $row.Type Indicators = $row.Indicators RecordTime = $row.RecordTime CurrentTime = $row.CurrentTime } } } } } |