Export SQL Server info about disk, cpu and memory utilization - sql-server

Question

I am trying to use logstash to read log files. When it come to monitor SQL Server, is there anyway to export SQL Server Database Disk Usage data to a log file?

Answer 1

Disk usage (per database):
IF OBJECT_ID('tempdb.dbo.#space') IS NOT NULL
DROP TABLE #space
CREATE TABLE #space (
database_id INT PRIMARY KEY
, data_used_size DECIMAL(18,2)
, log_used_size DECIMAL(18,2)
)
DECLARE #SQL NVARCHAR(MAX)
SELECT #SQL = STUFF((
SELECT '
USE [' + d.name + ']
INSERT INTO #space (database_id, data_used_size, log_used_size)
SELECT
DB_ID()
, SUM(CASE WHEN [type] = 0 THEN space_used END)
, SUM(CASE WHEN [type] = 1 THEN space_used END)
FROM (
SELECT s.[type], space_used = SUM(FILEPROPERTY(s.name, ''SpaceUsed'') * 8. / 1024)
FROM sys.database_files s
GROUP BY s.[type]
) t;'
FROM sys.databases d
WHERE d.[state] = 0
FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '')
EXEC sys.sp_executesql #SQL
SELECT
d.database_id
, d.name
, d.state_desc
, t.total_size
, t.data_size
, s.data_used_size
, t.log_size
, s.log_used_size
FROM (
SELECT
database_id
, log_size = CAST(SUM(CASE WHEN [type] = 1 THEN size END) * 8. / 1024 AS DECIMAL(18,2))
, data_size = CAST(SUM(CASE WHEN [type] = 0 THEN size END) * 8. / 1024 AS DECIMAL(18,2))
, total_size = CAST(SUM(size) * 8. / 1024 AS DECIMAL(18,2))
FROM sys.master_files
GROUP BY database_id
) t
JOIN sys.databases d ON d.database_id = t.database_id
LEFT JOIN #space s ON d.database_id = s.database_id
ORDER BY t.total_size DESC
Disk activity:
IF OBJECT_ID('tempdb.dbo.#tt', 'U') IS NULL
CREATE TABLE #tt (
tm DATETIME PRIMARY KEY,
total_read NUMERIC(28, 2),
total_written NUMERIC(28, 2),
total_io_count BIGINT,
total_io_wait BIGINT
)
DECLARE #current_collection_time DATETIME = GETDATE()
INSERT INTO #tt
SELECT
#current_collection_time,
SUM(num_of_bytes_read / 1024.0 / 1024.0 ),
SUM(num_of_bytes_written / 1024.0 / 1024.0 ),
SUM(num_of_reads + num_of_writes),
SUM(io_stall)
FROM sys.dm_io_virtual_file_stats(DEFAULT, DEFAULT)
DECLARE #previous_collection_time DATETIME
SELECT #previous_collection_time = tm
FROM #tt
WHERE tm < #current_collection_time
DECLARE #interval_ms INT = DATEDIFF(MILLISECOND, #previous_collection_time, #current_collection_time);
SELECT
read_mb_sec = (c.total_read - p.total_read) * 1000 / #interval_ms,
write_mp_sec = (c.total_written - p.total_written) * 1000 / #interval_ms,
response_time_ms =
CASE
WHEN (c.total_io_count - p.total_io_count) = 0
THEN 0
ELSE (c.total_io_wait - p.total_io_wait) / (c.total_io_count - p.total_io_count)
END
FROM #tt c
CROSS JOIN #tt p
WHERE c.tm = #current_collection_time
AND p.tm = #previous_collection_time
DELETE FROM #tt
WHERE tm < #current_collection_time;
Memory utilization:
DECLARE #sql_memory_mb INT
SELECT #sql_memory_mb = physical_memory_in_use_kb / 1024
FROM sys.dm_os_process_memory
SELECT
total_memory_mb = total_physical_memory_kb / 1024,
memory_in_use_mb = (total_physical_memory_kb - available_physical_memory_kb) / 1024,
sql_memory_mb = #sql_memory_mb
FROM sys.dm_os_sys_memory
CPU utilization:
SELECT
cpu_total =
CASE WHEN cpu_sql > cpu_total AND cpu_sql <= 99.
THEN cpu_sql
ELSE cpu_total
END,
cpu_sql
FROM (
SELECT cpu_total = 100 - x.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle/text())[1]', 'TINYINT')
FROM (
SELECT TOP(1) [timestamp], x = CONVERT(XML, record)
FROM sys.dm_os_ring_buffers
WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR'
AND record LIKE '%<SystemHealth>%'
) t
) x
CROSS JOIN (
SELECT
cpu_sql = (
MAX(CASE WHEN counter_name = 'CPU usage %' THEN t.cntr_value * 1. END) /
MAX(CASE WHEN counter_name = 'CPU usage % base' THEN t.cntr_value END)
) * 100
FROM (
SELECT TOP(2) cntr_value, counter_name
FROM sys.dm_os_performance_counters
WHERE counter_name IN ('CPU usage %', 'CPU usage % base')
AND instance_name = 'default'
) t
) t
This queries you can run from jobs and put required information into tables.
How to load data into file:
/*
EXEC sys.sp_configure 'show advanced options', 1
GO
RECONFIGURE
GO
EXEC sys.sp_configure 'xp_cmdshell', 1
GO
RECONFIGURE WITH OVERRIDE
GO
*/
DECLARE #sql NVARCHAR(4000) = 'bcp "SELECT * FROM dbo.disk_activity" queryout "D:\sample.html" -S ' + ##servername + ' -T -w -r -t'
EXEC sys.xp_cmdshell #sql