Capture DB Usage Before Planning Decommission

In large establishments, where there are many servers, there are always chances of some servers or databases not being used but which remain operational. There is a need to decommission those servers or databases so that they can be used for other purposes. This should be a continuous process to analyze servers or databases which are not in use. There is huge cost of storage and licensing which an organization can save by reusing them.

Before deciding to decommission such servers or databases you need to ensure they are not used by any app or user. This needs to be tracked but it’s not always easy. There are times when a db is put in offline mode and the DBA team waits for someone to raise an alarm that they are not able to connect to them for whatever purpose, then those databases are brought online.

This approach has many flaws; app becomes unavailable, causes inconvenience to teams using them and creates downtime.

Thus there needs to be a more proactive approach to analyze first before we decide to decommission a server or database.

In order to accomplish this, you have created a job which will capture usage of all databases along with logins using them and hostname from where connections are coming. This information is captured in a table. You can let this job run for a week or two and then see who all are connecting to which database and decide or check whether to decommission them or not.

You can run ‘select * from DBAdmin..loginauditto see the info captured

Following code is for SQL Server 2005 and above

————————-Create a Table in DBAdmin database———————————

USE [DBAdmin]

GO

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

SET ANSI_PADDING ON

GO

CREATE TABLE [dbo].[LoginAudit](

[Login] [varchar](100) NULL,

[HostName] [varchar](100) NULL,

[DBName] [varchar](100) NULL,

[Command] [varchar](255) NULL,

[LastBatch] [varchar](255) NULL,

[ProgramName] [varchar](255) NULL

) ON [PRIMARY]

GO

SET ANSI_PADDING OFF

 

—————Create Job to run every 30 min—Change mail operator plus start and date——–

USE [msdb]

GO

BEGIN TRANSACTION

DECLARE @ReturnCode INT

SELECT @ReturnCode = 0

IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE name=N'[Uncategorized (Local)]’ AND category_class=1)

BEGIN

EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N’JOB’, @type=N’LOCAL’, @name=N'[Uncategorized (Local)]’

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

END

DECLARE @jobId BINARY(16)

EXEC @ReturnCode = msdb.dbo.sp_add_job @job_name=N’Login Audit Job’,

@enabled=1,

@notify_level_eventlog=2,

@notify_level_email=2,

@notify_level_netsend=0,

@notify_level_page=0,

@delete_level=0,

@description=N’No description available.’,

@category_name=N'[Uncategorized (Local)]’,

@owner_login_name=N’sa’,

@notify_email_operator_name=N’DBATeam@SQLDBA.com’, –(your email operator)

@job_id = @jobId OUTPUT

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

/****** Object: Step [Login Audit Step]   Script Date: 03/27/2015 03:25:49 ******/

EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N’Login Audit Step’,

@step_id=1,

@cmdexec_success_code=0,

@on_success_action=1,

@on_success_step_id=0,

@on_fail_action=2,

@on_fail_step_id=0,

@retry_attempts=0,

@retry_interval=0,

@os_run_priority=0, @subsystem=N’TSQL’,

@command=N’CREATE TABLE #sp_who2 (SPID INT,Status VARCHAR(255),

Login VARCHAR(255),HostName VARCHAR(255),

BlkBy VARCHAR(255),DBName VARCHAR(255),

Command VARCHAR(255),CPUTime INT,

DiskIO INT,LastBatch VARCHAR(255),

ProgramName VARCHAR(255),SPID2 INT,

REQUESTID INT)

————————————–

INSERT INTO #sp_who2 EXEC sp_who2

————————————–

INSERT INTO DBAdmin..LoginAudit

SELECT     Login, Hostname, DBName, Command, LastBatch, ProgramName

FROM       #sp_who2

WHERE     Status <> ”Background”

and       SPID > 49

and       programName not like ”%SQLAgent%”

and       Login <> ”Null”

and       Login <> ””

ORDER BY   LastBatch ASC

—————————————

DROP TABLE #sp_who2′,

@database_name=N’DBAdmin’,

@flags=0

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, @start_step_id = 1

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

EXEC @ReturnCode = msdb.dbo.sp_add_jobschedule

@job_id=@jobId,

@name=N’Every Half an hour’,

@enabled=1,

@freq_type=4,

@freq_interval=1,

@freq_subday_type=4,

@freq_subday_interval=24,

@freq_relative_interval=0,

@freq_recurrence_factor=0,

@active_start_date=20150327, —Monitoring (datacapture) start date @active_end_date=20150411, —Monitoring (datacapture) end date

@active_start_time=0,

@active_end_time=235959

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, @server_name = N'(local)’

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

COMMIT TRANSACTION

GOTO EndSave

QuitWithRollback:

IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION

EndSave:

Following code is for SQL Server 2000

————–Create Table in DBAdmin Database —————

CREATE TABLE [LoginAudit] (

[Login] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[HostName] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[DBName] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[Command] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[LastBatch] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[ProgramName] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL

) ON [PRIMARY]

GO

—————Create Job to run every 30 min—Change mail operator plus start and date——–

BEGIN TRANSACTION

DECLARE @JobID BINARY(16)

DECLARE @ReturnCode INT

SELECT @ReturnCode = 0

IF (SELECT COUNT(*) FROM msdb.dbo.syscategories WHERE name = N'[Uncategorized (Local)]’) < 1

EXECUTE msdb.dbo.sp_add_category @name = N'[Uncategorized (Local)]’

 

— Delete the job with the same name (if it exists)

SELECT @JobID = job_id

FROM   msdb.dbo.sysjobs

WHERE (name = N’Login Audit Job’)

IF (@JobID IS NOT NULL)

BEGIN

— Check if the job is a multi-server job

IF (EXISTS (SELECT *

FROM   msdb.dbo.sysjobservers

WHERE   (job_id = @JobID) AND (server_id <> 0)))

BEGIN

— There is, so abort the script

RAISERROR (N’Unable to import job ”Login Audit Job” since there is already a multi-server job with this name.’, 16, 1)

GOTO QuitWithRollback

END

ELSE

— Delete the [local] job

EXECUTE msdb.dbo.sp_delete_job @job_name = N’Login Audit Job’

SELECT @JobID = NULL

END

BEGIN

— Add the job

EXECUTE @ReturnCode = msdb.dbo.sp_add_job

@job_id = @JobID OUTPUT ,

@job_name = N’Login Audit Job’,

@owner_login_name = N’sa’,

@description = N’No description available.’,

@category_name = N'[Uncategorized (Local)]’,

@enabled = 1,

@notify_level_email = 2,

@notify_level_page = 0,

@notify_level_netsend = 0,

@notify_level_eventlog = 2,

@delete_level= 0,

@notify_email_operator_name = N’DBATeam@SQLDBA.com’, –(your email operator)

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

 

— Add the job steps

EXECUTE @ReturnCode = msdb.dbo.sp_add_jobstep @job_id = @JobID, @step_id = 1, @step_name = N’Login Audit Step’,

@command = N’CREATE TABLE #sp_who2 (SPID INT,Status VARCHAR(255),

Login VARCHAR(255),

HostName VARCHAR(255),

BlkBy VARCHAR(255),

DBName VARCHAR(255),

Command VARCHAR(255),

CPUTime INT,

DiskIO INT,

LastBatch VARCHAR(255),

ProgramName VARCHAR(255),

SPID2 INT)

 

————————————–

INSERT INTO #sp_who2 EXEC sp_who2

————————————–

INSERT INTO DBAdmin..LoginAudit

SELECT     Login, Hostname, DBName, Command, LastBatch, ProgramName

FROM       #sp_who2

WHERE     Status <> ”Background”

and       SPID > 49

and       programName not like ”%SQLAgent%”

and       Login <> ”Null”

and      Login <> ””

ORDER BY   LastBatch ASC

—————————————

DROP TABLE #sp_who2′,

@database_name = N’DBAdmin’,

@server = N”,

@database_user_name = N”,

@subsystem = N’TSQL’,

@cmdexec_success_code = 0,

@flags = 0,

@retry_attempts = 0,

@retry_interval = 1,

@output_file_name = N”,

@on_success_step_id = 0,

@on_success_action = 1,

@on_fail_step_id = 0,

@on_fail_action = 2

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

EXECUTE @ReturnCode = msdb.dbo.sp_update_job @job_id = @JobID, @start_step_id = 1

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

 

— Add the job schedules

EXECUTE @ReturnCode = msdb.dbo.sp_add_jobschedule

@job_id = @JobID,

@name = N’Every Half an hour’,

@enabled = 1,

@freq_type = 4,

@active_start_date = 20150327, —Monitoring (datacapture) start date

@active_start_time = 0,

@freq_interval = 1,

@freq_subday_type = 4,

@freq_subday_interval = 30,

@freq_relative_interval = 0,

@freq_recurrence_factor = 0,

@active_end_date = 20150411,  —Monitoring (datacapture) end date

@active_end_time = 235959

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

 

— Add the Target Servers

EXECUTE @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @JobID, @server_name = N'(local)’

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

 

END

COMMIT TRANSACTION

GOTO   EndSave

QuitWithRollback:

IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION

EndSave:

 

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