Powershell：检索数据库属性，以百分比和格式转换大小以发送邮件报告

Question

我有一个工作脚本（由一位前同事编写）连接到 mssql 数据库，获取每个数据库的大小并使用我不理解的日志记录和格式化技术将它们报告到 csv 文件中.

这是相关的行：

$reportcsv = $((get-location).path + "\Results\result-size.csv")

Out-File -FilePath $reportcsv -InputObject $("srvname;Db.Name;TotalDBSize;dbSize;LogSize;DbUsedSpace;LogUsedSpace")

foreach ($Server in $icmDBServers)
    {

    $logstring = "Connessione DB " + $Server.Name
    WriteLog -OutFile $LogFile -Type info -text $logString -prompt $true
    
    $DBConnection = new-object Microsoft.SqlServer.Management.Common.ServerConnection
    $DBConnection.ServerInstance=$Server.Name
    
    $ServerObj = new-object Microsoft.SqlServer.Management.SMO.Server($DBConnection)

    
    if (----Param cmd condition----)
        {
        "############################################################################################"
        "{0,-28}{1,64}" -f "##","#"
        "####### {0,-28}      {1,11} {2,38}   " -f  "S E R V E R   N A M E", $Server.Name, "########"
        "{0,-28}{1,64}" -f "##","#"
        "############################################################################################"
        foreach ($db in $ServerObj.Databases)
            {
            switch ($db.Name )
                {   
                "master" {} 
                "model"  {}
                "msdb"   {}
                default 
                        {
                        $logstring = ""                 
                        $LogUsedSpace = [System.Math]::Round($($db.LogFiles | measure-object -property UsedSpace -sum).sum/1024,2)
                        $LogSize = [System.Math]::Round($($db.LogFiles | measure-object -property Size -sum).sum/1024,2)
                        $TotalDBSize = [System.Math]::Round($db.Size,2)
                        $dbSize = [System.Math]::Round($db.Size - $logsize,2)
                        $DbUsedSpace = [System.Math]::Round($db.Size - $db.SpaceAvailable/1024,2)
                        $DBUsageP = $($DbUsedSpace / $TotalDBSize)
                        $LogUsageP = $($LogUsedSpace / $LogSize)
                        #"{0,-28} {1,12}  ########" -f  "####### DB SIZE REPORT for DATABASE ", $db.Name
                        "{0,-28} {1,50} ###" -f "#######  DB SIZE REPORT for DATABASE ", $db.Name
                        "{0,-28}{1,64}" -f "##","#"
                        "{0,-28} {1,12}    MB {2,44} " -f "DB TotalSize", $TotalDBSize ,"#"
                        "{0,-28} {1,12}    MB {2,44}" -f "DB TotalSize", $TotalDBSize ,"#"
                        "{0,-28} {1,12}    MB {2,44}" -f "DB Size", $dbSize ,"#"
                        "{0,-28} {1,15} MB {2,44}" -f "DB UsedSpace", $DbUsedSpace ,"#"
                        "{0,-28} {1,17:p} {2,45}" -f "DB Usage", $DBUsageP ,"#"
                        "{0,-28} {1,12}    MB {2,44}" -f "Log Size", $LogSize ,"#"
                        "{0,-28} {1,15} MB {2,44}" -f "Log UsedSpace", $logUsedSpace ,"#"
                        "{0,-28} {1,17:p} {2,45}" -f "Log Usage", $LogUsageP,"#"
                        "{0,-28}{1,64}" -f "##","#"
                        "############################################################################################"
                        $logstring  =  $Server.Name + ";" + $Db.Name + ";" + $TotalDBSize + ";" + $dbSize + ";" + $LogSize  + ";" + $DbUsedSpace  + ";" +  $LogUsedSpace        
                        Out-File -FilePath $reportcsv -InputObject $logstring -Append
                        }
                }
            }
            
        }

        
    "{0,-28}{1,64}" -f "##","#"
    "{0,-28}{1,64}" -f "##","#"

实际上文本输出是这样的：

> ##                                                                                         #
> ####### S E R V E R   N A M E              server0                               ########   
> ##                                                                                         #
> ############################################################################################
> #######  DB SIZE REPORT for DATABASE                                            db1 ###
> ##                                                                                         # DB TotalSize                         1152    MB                                            #  DB TotalSize                         1152    MB                                            # DB Size                              1024    MB                                            # DB UsedSpace                             202 MB                                            # DB Usage                                17,53%                                             # Log Size                              128    MB                                            # Log UsedSpace                           2,27 MB                                            # Log Usage                                1,77%                                             #
> ##                                                                                         #
> ############################################################################################

我需要对其进行修改，以便我可以仅报告（通过邮件消息）$DBUsageP 值高于 90% 的数据库。

对于我想要检索的数据库：

$Server.Name
$db.Name
$DBUsageP

我认为我需要在 foreach 语句中为捕获和存储 $DBUsageP 值 >90% 设置条件，但我不知道如何实现。

Answer 1

您可以像在列表中那样在变量中捕获您想要的内容：

$over90List = New-Object System.Collections.Generic.List[object]

并在 default 块中添加这些最后几行：

if ($DBUsageP -gt 0.9) {
    $over90List.Add([PsCustomObject]@{
        Server   = $Server.Name
        DataBase = $Db.Name
        Usage    = '{0:p}' -f $DBUsageP
    })
}

然后你将在 $over90List 中有一个对象数组，用 ConvertTo-Html 转换成 HTML table 或者用 plain-text 和 |Format-Table -AutoSize | Out-String 输入您的电子邮件。

Powershell：检索数据库属性，以百分比和格式转换大小以发送邮件报告

Powershell: retrive DB properties, convert sizes in percentage and formatting to send a mail report

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