get disk queue length – powershell

DECLARE @b TABLE (output VARCHAR(MAX))
INSERT INTO @b
EXEC xp_cmdshell ‘C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -command “(get-counter ”\PhysicalDisk(1 d:)\Current Disk Queue Length” -ComputerName COMPUTERNAME).countersamples | select CookedValue”‘
;WITH a AS (SELECT *,ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) r FROM @b)
SELECT LTRIM(output)
FROM a WHERE r = 4

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