SCCM 2007: Create Report of Upcoming Maintenance Windows by Client - TechNet Articles - United States (English) - TechNet Wiki

How To

Calculating the next maintenance window in SCCM is a bit troublesome as you normally have to use WMI to get the data structure that makes up the schedule. What if you want to write a SCCM report?

The following table-valued function will calculate the next date/time of a maintenance window for a given serializedv>

SCCM 2007: Create Report of Upcoming Maintenance Windows by Client

How To

Calculating the next maintenance window in SCCM is a bit troublesome as you normally have to use WMI to get the data struc schedule data structure based on the current date/time.

Actions Required Resolve the "How-To"

Run the following T-SQL on your SCCM site database:

CREATE FUNCTION [dbo].[SCCM_GetNextServiceWindow](@ScheduleToken AS CHAR(16), @RecurrenceType AS INT) RETURNS @NextServiceWindow TABLE (ScheduleToken CHAR(16), RecurrenceType INT, NextServiceWindow DATETIME, Duration INT, IsGMTTime BIT) AS BEGIN
--1 Occurs on 1/1/2012 12:00 AM 00011A8500080000
--2 Occurs every 3 day(s) effective 1/1/2012 8:00 PM    02811A8040100018
--3 Occurs every 3 week(s) on Saturday effective 1/1/2012 8:00 PM   02811A80401F6000
--3 Occurs every 1 week(s) on Saturday effective 1/1/2012 8:00 PM   02811A80401F2000
--5 Occurs day 2 of every 2 month(s) effective 1/1/2012 8:00 PM 02811A8040288800
--5 Occurs day 31 of every 1 month(s) effective 1/1/2012 8:00 PM    02811A80402FC400
--5 Occurs the last day of every 3 months effective 1/1/2012 8:00 PM    02811A8040280C00
--5 Occurs the last day of every 1 months effective 1/1/2012 8:00 PM    02811A8040280400
--4 Occurs the Third Monday of every 1 month(s) effective 1/1/2012 4:00 AM  00811A9E08221600
--4 Occurs the Last Wednesday of every 1 month(s) effective 1/1/2012 8:00 PM    02811A8040241000
--4 Occurs the Fourth Wednesday of every 1 month(s) effective 1/1/2012 8:00 PM  02811A8040241800
--4 Occurs the Last Monday of every 1 month(s) effective 1/1/2012 8:00 PM   02811A8040221000
--3 Occurs every 1 week(s) on Monday effective 1/1/2012 4:00 AM 00811A9E081A2000
 
DECLARE @RecurrenceType_NONE INT
      , @RecurrenceType_DAILY INT
      , @RecurrenceType_WEEKLY INT
      , @RecurrenceType_MONTHLYBYWEEKDAY INT
      , @RecurrenceType_MONTHLYBYDATE INT
 
SELECT @RecurrenceType_NONE = 1
     , @RecurrenceType_DAILY = 2
     , @RecurrenceType_WEEKLY = 3
     , @RecurrenceType_MONTHLYBYWEEKDAY = 4
     , @RecurrenceType_MONTHLYBYDATE = 5
      
 
--DECLARE @RecurrenceType   INT;      SET @RecurrenceTypeecurrenceType_WEEKLY = 3
     , @RecurrenceType_MONTHLYBYWEEKDAY = 4
     , @RecurrenceType_MONTHLYBYDATE = 5
      
 
--DECLARE   = @RecurrenceType_WEEKLY
--DECLARE @ScheduleToken     CHAR(16); SET @ScheduleToken     = '00811A9E081A2000'
DECLARE @ScheduleStartTime INT;      SET @ScheduleStartTime = CAST(CONVERT(BINARY(4), LEFT(@ScheduleToken, 8), 2) AS INT)
DECLARE @ScheduleDuration  INT;      SET @ScheduleDuration  = CAST(CONVERT(BINARY(4), RIGHT(@ScheduleToken, 8), 2) AS INT)
 
-- Duration is in minutes
DECLARE @Duration INT; SET @Duration = @ScheduleStartTime % POWER(2, 6)
 
-- Calculate the start time
DECLARE @StartTime DATETIME; SET @StartTime = CONVERT(DATETIME, '01/01/1970 00:00:00')
SET @StartTime = DATEADD(YEAR, (@ScheduleStartTime / POWER(2,6)) % POWER(2, 6), @StartTime)
SET @StartTime = DATEADD(MONTH, ((@ScheduleStartTime / POWER(2,12)) % POWER(2, 4)) - 1, @StartTime)
SET @StartTime = DATEADD(DAY, ((@ScheduleStartTime / POWER(2,16)) % POWER(2, 5)) - 1, @StartTime)
SET @StartTime = DATEADD(HOUR, (@ScheduleStartTime / POWER(2,21)) % POWER(2, 5), @StartTime)
SET @StartTime = DATEADD(MINUTE, (@ScheduleStartTime / POWER(2,26)) % POWER(2, 5), @StartTime)
 
-- Determinte UTC and Flags
DECLARE @IsGMTTime     BIT; SET @IsGMTTime     = CAST(@ScheduleDuration % POWER(2, 1) AS BIT)
DECLARE @Flags         INT; SET @Flags         = (@ScheduleDuration / POWER(2,19)) % POWER(2, 3)
 
-- Calculate the total duration in minutes
SET @Duration = @Duration + ((@ScheduleDuration / POWER(2,22)) % POWER(2, 5)) * 24 * 60 -- DAYS
SET @Duration = @Duration + ((@ScheduleDuration / POWER(2,27)) % POWER(2, 5)) * 60      -- HOURS
 
DECLARE @Now DATETIME
 
IF @IsGMTTime = 1 BEGIN
    SET @Now = GETUTCDATE()
END ELSE BEGIN
    SET @Now = GETDATE()
END
 
DECLARE @NextMaintenanceWindow DATETIME
 
IF @RecurrenceType = @RecurrenceType_NONE BEGIN
    IF DATEADD(MINUTE, @Duration, @StartTime) > @Now BEGIN
        SET @NextMaintenanceWindow = @StartTime
    END
END ELSE IF @RecurrenceType = @RecurrenceType_DAILY BEGIN
    IF DATEADD(MINUTE, @Duration, @StartTime) > @Now BEGIN
        SET @NextMaintenanceWindow = @StartTime
    END ELSE BEGIN
        -- Calculate the daily interval in minutes
        DECLARE @DailyInterval INT
         
        SET @DailyInterval = ((@ScheduleDuration / POWER(2,3)) % POWER(2, 5)) * 24 * 60
        SET @DailyInterval = @DailyInterval + ((@ScheduleDuration / POWER(2,8)) % POWER(2, 5)) * 60
        SET @DailyInterval = @DailyInterval + (@ScheduleDuration / POWER(2,13)) % POWER(2, 6)
         
        -- Calculate the total number of completed intervals
        DECLARE @DailyNumberOfCompletedIntervals INT; SET @DailyNumberOfCompletedIntervals = ROUND(CAST(DATEDIFF(MINUTE, @StartTime, @Now) AS DECIMAL) / @DailyInterval, 0, 0)
         
        -- Calculate the next interval
        DECLARE @DailyNextInterval DATETIME; SET @DailyNextInterval = DATEADD(MINUTE, @DailyNumberOfCompletedIntervals * @DailyInterval, @StartTime)
         
        -- Recalc the next interval if the next interval plus the expected duration is in the past
        IF DATEADD(MINUTE, @Duration, @DailyNextInterval) < @Now BEGIN
            SET @DailyNextInterval = DATEADD(MINUTE, (@DailyNumberOfCompletedIntervals + 1) * @DailyInterval, @StartTime)
        END
         
        SET @NextMaintenanceWindow = @DailyNextInterval
    END
END ELSE IF @RecurrenceType = @RecurrenceType_WEEKLY BEGIN
    DECLARE @WeeklyInterval INT; SET @WeeklyInterval = (@ScheduleDuration / POWER(2,13)) % POWER(2, 3)
    DECLARE @WeeklyDoW      INT; SET @WeeklyDoW      = (@ScheduleDuration / POWER(2,16)) % POWER(2, 3)
     
    -- Adjust the start time to match the next day of week that matches the interval
    DECLARE @WeeklyStartTime DATETIME; SET @WeeklyStartTime = DATEADD(DAY, (7 - DATEPART(WEEKDAY, @StartTime) + @WeeklyDoW % 7), @StartTime)
     
    IF DATEADD(MINUTE, @Duration, @WeeklyStartTime) > @Now BEGIN
        SET @NextMaintenanceWindow = @WeeklyStartTime
    END ELSE BEGIN
        -- Calculate the total number of completed intervals
        DECLARE @WeeklyNumberOfCompletedIntervals INT; SET @WeeklyNumberOfCompletedIntervals = ROUND(CAST(DATEDIFF(WEEK, @WeeklyStartTime, @Now) AS DECIMAL) / @WeeklyInterval, 0, 0)
         
        -- Calculate the next interval
        DECLARE @WeeklyNextInterval DATETIME; SET @WeeklyNextInterval = DATEADD(WEEK, @WeeklyNumberOfCompletedIntervals * @WeeklyInterval, @WeeklyStartTime)
         
        -- Recalc the next interval if the next interval plus the expected duration is in the past
        IF DATEADD(MINUTE, @Duration, @WeeklyNextInterval) < @Now BEGIN
            SET @WeeklyNextInterval = DATEADD(WEEK, (@WeeklyNumberOfCompletedIntervals + 1) * @WeeklyInterval, @WeeklyStartTime)
        END
         
        SET @NextMaintenanceWindow = @WeeklyNextInterval
    END
END ELSE IF @RecurrenceType = @RecurrenceType_MONTHLYBYWEEKDAY BEGIN
    DECLARE @MonthlyBWWeek     INT; SET @MonthlyBWWeek     = (@ScheduleDuration / POWER(2,9)) % POWER(2, 3)
    DECLARE @MontlhyBWInterval INT; SET @MontlhyBWInterval = (@ScheduleDuration / POWER(2,12)) % POWER(2, 4)
    DECLARE @MonthlyBWDoW      INT; SET @MonthlyBWDoW      = (@ScheduleDuration / POWER(2,16)) % POWER(2, 3)
     
    -- Calculate the total number of completed intervals
    DECLARE @MonthlyBWNumberOfCompletedIntervals INT; SET @MonthlyBWNumberOfCompletedIntervals = ROUND(CAST(DATEDIFF(MONTH, @StartTime, @Now) AS DECIMAL) / @MontlhyBWInterval, 0, 0)
         
    IF @MonthlyBWWeek = 0 BEGIN
        -- Calculate the next interval
        DECLARE @MonthlyBWLDOMNextInterval DATETIME; SET @MonthlyBWLDOMNextInterval = DATEADD(MONTH, @MonthlyBWNumberOfCompletedIntervals * @MontlhyBWInterval, @StartTime)
 
        -- Calculate last day of month
        SET @MonthlyBWLDOMNextInterval = DATEADD(DAY, DATEDIFF(DAY, @MonthlyBWLDOMNextInterval, DATEADD(DAY, -1, DATEADD(M, DATEDIFF(MONTH, 0, @MonthlyBWLDOMNextInterval) + 1, 0))), @MonthlyBWLDOMNextInterval)
         
        -- Calculate the last day of the week for the month
        SET @MonthlyBWLDOMNextInterval = DATEADD(DAY, -(7 - DATEPART(WEEKDAY, @MonthlyBWLDOMNextInterval) + @MonthlyBWDoW % 7), @MonthlyBWLDOMNextInterval)
         
        IF DATEADD(MINUTE, @Duration, @MonthlyBWLDOMNextInterval) < @Now BEGIN
            -- Recalc for the next month interval
            SET @MonthlyBWLDOMNextInterval = DATEADD(MONTH, (@MonthlyBWNumberOfCompletedIntervals + 1) * @MontlhyBWInterval, @StartTime)
             
            -- Calculate last day of month
            SET @MonthlyBWLDOMNextInterval = DATEADD(DAY, DATEDIFF(DAY, @MonthlyBWLDOMNextInterval, DATEADD(DAY, -1, DATEADD(M, DATEDIFF(MONTH, 0, @MonthlyBWLDOMNextInterval) + 1, 0))), @MonthlyBWLDOMNextInterval)
             
            -- Calculate the last day of the week for the month
            SET @MonthlyBWLDOMNextInterval = DATEADD(DAY, -(7 - DATEPART(WEEKDAY, @MonthlyBWLDOMNextInterval) + @MonthlyBWDoW % 7), @MonthlyBWLDOMNextInterval)
        END
         
        SET @NextMaintenanceWindow = @MonthlyBWLDOMNextInterval
    END ELSE BEGIN
        -- Calculate the next interval
        DECLARE @MonthlyBWNextInterval DATETIME; SET @MonthlyBWNextInterval = DATEADD(MONTH, @MonthlyBWNumberOfCompletedIntervals * @MontlhyBWInterval, @StartTime)
         
        -- Set the date to the first day of the month
        SET @MonthlyBWNextInterval = DATEADD(DAY, -(DAY(@MonthlyBWNextInterval) - 1), @MonthlyBWNextInterval)
         
        -- Set the date to the first day of week in the month
        SET @MonthlyBWNextInterval = DATEADD(DAY, (7 - DATEPART(WEEKDAY, @MonthlyBWNextInterval) + @MonthlyBWDoW) % 7, @MonthlyBWNextInterval)
         
        -- Calculate date based on the week number to add
        SET @MonthlyBWNextInterval = DATEADD(WEEK, @MonthlyBWWeek-1, @MonthlyBWNextInterval)
         
        IF DATEADD(MINUTE, @Duration, @MonthlyBWNextInterval) < @Now BEGIN
            -- Recalc for the next month interval
            SET @MonthlyBWNextInterval = DATEADD(MONTH, (@MonthlyBWNumberOfCompletedIntervals + 1) * @MontlhyBWInterval, @StartTime)
         
            -- Set the date to the first day of the month
            SET @MonthlyBWNextInterval = DATEADD(DAY, -(DAY(@MonthlyBWNextInterval) - 1), @MonthlyBWNextInterval)
             
            -- Set the date to the first day of week in the month
            SET @MonthlyBWNextInterval = DATEADD(DAY, (7 - DATEPART(WEEKDAY, @MonthlyBWNextInterval) + @MonthlyBWDoW % 7), @MonthlyBWNextInterval)
             
            -- Calculate date based on the week number to add
            SET @MonthlyBWNextInterval = DATEADD(WEEK, @MonthlyBWWeek-1, @MonthlyBWNextInterval)
        END
         
        SET @NextMaintenanceWindow = @MonthlyBWNextInterval
    END
END ELSE IF @RecurrenceType = @RecurrenceType_MONTHLYBYDATE BEGIN
    DECLARE @MontlhyBDInterval INT; SET @MontlhyBDInterval = (@ScheduleDuration / POWER(2,10)) % POWER(2, 4)
    DECLARE @MonthlyBDDoM      INT; SET @MonthlyBDDoM      = (@ScheduleDuration / POWER(2,14)) % POWER(2, 5)
     
    IF @MonthlyBDDoM = 0 BEGIN
@MontlhyBDInterval = (@ScheduleDuration / POWER(2,10)) % POWER(2, 4)
    DECLARE @MonthlyBDDoM      INT; SET @MonthlyBDDoM      = (@ScheduleDuration / POWER(2,14)) % POWER(2, 5)
     
    IF @MonthlyBDDoM = 0         /* This is the last day of month logic */
         
        -- Calculate the total number of completed intervals
        DECLARE @MonthlyBDLDOMNumberOfCompletedIntervals INT; SET @MonthlyBDLDOMNumberOfCompletedIntervals = ROUND(CAST(DATEDIFF(MONTH, @StartTime, @Now) AS DECIMAL) / @MontlhyBDInterval, 0, 0)
         
        -- Calculate the next interval
        DECLARE @MonthlyBDLDOMNextInterval DATETIME; SET @MonthlyBDLDOMNextInterval = DATEADD(MONTH, @MonthlyBDLDOMNumberOfCompletedIntervals * @MontlhyBDInterval, @StartTime)
 
        -- Calculate last day of month
        SET @MonthlyBDLDOMNextInterval = DATEADD(DAY, DATEDIFF(DAY, @MonthlyBDLDOMNextInterval, DATEADD(DAY, -1, DATEADD(M, DATEDIFF(MONTH, 0, @MonthlyBDLDOMNextInterval) + 1, 0))), @MonthlyBDLDOMNextInterval)
         
        -- Recalc the next interval if the next interval plus the expected duration is in the past
        IF DATEADD(MINUTE, @Duration, @MonthlyBDLDOMNextInterval) < @Now BEGIN
            SET @MonthlyBDLDOMNextInterval = DATEADD(DAY, DATEDIFF(DAY, @MonthlyBDLDOMNextInterval, DATEADD(DAY, -1, DATEADD(M, DATEDIFF(MONTH, 0, DATEADD(MONTH, (@MonthlyBDLDOMNumberOfCompletedIntervals + 1) * @MontlhyBDInterval, @StartTime)) + 1, 0))), @MonthlyBDLDOMNextInterval)
        END
         
        SET @NextMaintenanceWindow = @MonthlyBDLDOMNextInterval
    END ELSE BEGIN
        -- Check to make sure we won't loop forever if more than 31 days some how ends up in the token
        IF @MonthlyBDDoM > 31 SET @MonthlyBDDoM = 31
         terval
    END         -- Adjust the start time to match the next day of month that matches the interval
        DECLARE @MonthlyBDStartTime DATETIME; SET @MonthlyBDStartTime = DATEADD(DAY, (31 - DATEPART(DAY, @StartTime) + @MonthlyBDDoM % 31), @StartTime)
         
        -- This loop is used multiple times to search for the next valid date that falls on the desired day of month
        WHILE(DATEPART(DAY, @MonthlyBDStartTime) <> @MonthlyBDDoM) BEGIN
            SET @MonthlyBDStartTime = DATEADD(DAY, (31 - DATEPART(DAY, @MonthlyBDStartTime) + @MonthlyBDDoM) % 31, @MonthlyBDStartTime)
        END
         
        IF DATEADD(MINUTE, @Duration, @MonthlyBDStartTime) > @Now BEGIN
            SET @NextMaintenanceWindow = @MonthlyBDStartTime
        END ELSE BEGIN
            -- Calculate the total number of completed intervals
            DECLARE @MonthlyBDNumberOfCompletedIntervals INT; SET @MonthlyBDNumberOfCompletedIntervals = ROUND(CAST(DATEDIFF(MONTH, @MonthlyBDStartTime, @Now) AS DECIMAL) / @MontlhyBDInterval, 0, 0)
             
            -- Calculate the next interval
            DECLARE @MonthlyBDNextInterval DATETIME; SET @MonthlyBDNextInterval = DATEADD(MONTH, @MonthlyBDNumberOfCompletedIntervals * @MontlhyBDInterval, @MonthlyBDStartTime)
             
            WHILE(DATEPART(DAY, @MonthlyBDNextInterval) <> @MonthlyBDDoM) BEGIN
                SET @MonthlyBDNextInterval = DATEADD(DAY, (31 - DATEPART(DAY, @MonthlyBDNextInterval) + @MonthlyBDDoM % 31), @MonthlyBDNextInterval)
            END
             
            -- Recalc the next interval if the next interval plus the expected duration is in the past
            IF DATEADD(MINUTE, @Duration, @MonthlyBDNextInterval) < @Now BEGIN
                SET @MonthlyBDNextInterval = DATEADD(MONTH, (@MonthlyBDNumberOfCompletedIntervals + 1) * @MontlhyBDInterval, @MonthlyBDNextInterval)
                 
                WHILE(DATEPART(DAY, @MonthlyBDNextInterval) <> @MonthlyBDDoM) BEGIN
                    SET @MonthlyBDNextInterval = DATEADD(DAY, (31 - DATEPART(DAY, @MonthlyBDNextInterval) + @MonthlyBDDoM % 31), @MonthlyBDNextInterval)
                END
, @MonthlyBDNextInterval) <> @MonthlyBDDoM) BEGIN
                    SET             END
             
            SET @NextMaintenanceWindow = @MonthlyBDNextInterval
        END
    END
END
 
INSERT INTO @NextServiceWindow VALUES (@ScheduleToken, @RecurrenceType, @NextMaintenanceWindow, @Duration, @IsGMTTime)
 
RETURN
END

To create a simple report that displays the client name and the next maintenance window use the following SQL for an SCCM report:
;WITH AllServiceWindows AS (
    -- All Service Windows for every resource and collection
    SELECT fcm.ResourceID
         , c.Name AS Collection
         , nsw.Duration
         , nsw.NextServiceWindow
         , ROW_NUMBER() OVER (PARTITION BY ResourceID ORDER BY nsw.NextServiceWindow) AS RowNumber
      FROM vSMS_ServiceWindow AS sw
      JOIN v_FullCollectionMembership AS fcm
        ON sw.SiteID = fcm.CollectionID
      JOIN v_Collection AS c
        ON sw.SiteID = c.CollectionID
     CROSS
     APPLY dbo.SCCM_GetNextServiceWindow(sw.Schedules, sw.RecurrenceType) AS nsw
)
 
SELECT sys.Name0 AS [Computer Name]
     , sys.description0      APPLY dbo.SCCM_GetNextServiceWindow(sw.Schedules, sw.RecurrenceType) AS nsw
old;">AS [Description]
     , asw.Collection AS [Collection]
     , CONVERT(CHAR(5), DATEADD(MINUTE, asw.Duration, 0), 108) AS [Duration (HH:MM)]
     , CONVERT(CHAR(16), asw.NextServiceWindow, 120) AS [Next Maintenance Window]
     , DATENAME(WEEKDAY, asw.NextServiceWindow) AS [Day of Week]
  FROM v_R_System as sys
  LEFT
  JOIN AllServiceWindows AS asw
    ON sys.ResourceID = asw.ResourceID
 WHERE sys.Client0 = 1
   AND asw.RowNumber = 1
 ORDER
    BY asw.NextServiceWindow
     , asw.Collection
     , sys.Name0

References

SCCM Maintenance Window Schedule Data Structure: http://msdn.microsoft.com/en-us/library/cc143505.aspx