Tempdb Log File Placement
Feb 22, 2007Using SQL2000
Is it recommended to put the tempdb data and log files on different drives?
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TempDB Placement - One File Per CPU
Sep 8, 2006I need some help understanding the benefit of creating tempdb with one file per processor. I believe the benefit has something to do with the way SQL Server utilizes processor threads, but I'm a bit weak on the details.
Thanks, Dave
Tempdb Log File Placement
Feb 22, 2007Using SQL2000
Is it recommended to put tempdb data and logs files on different drives?
.mdf And .ldf File Placement
Nov 30, 2004Can I choose where I want to store my database using MSDE
View 3 Replies View RelatedHelp With File Placement Please...
Jul 20, 2005Hello All,I am looking at the performance of our production database. It is40gb, and growing reasonably fast. It is placed in one file group on aRAID-5 array. The array is made up of 20 (or so) 9gb disks. The data,the indexes and the transaction log are all on the "one logical disk".My question then, is, would it be better to move the transaction logonto a separate device (with Raid-1), and then separate out theindexes and the data and to place them onto separate devices (ie.split the raid disks into 2 new drives). Or would it be better toplace the table into a larger number of smaller filegroups effectivelysplit across the raid device and to (strategically) place differenttables into the new logical disks. Does this make sense?Or, do I just leave everything as it is?CheersMike
View 1 Replies View RelatedFile Placement
Aug 16, 2007Can anyone point me to any Microsoft articals giving reccomendations for file placement for SQL server? We are trying to convince our Hardware guys that we need separate disks for data/log/tempdb files and need some ammo.
Thanks,
Jason
Database File Placement (many DB's)
Jul 21, 2004Hello,
I have a question about how I can change the database placement on our HP MSA1000 SAN. Basically I'm concerned about the performance of one particular server with 40+ databases. I'm familiar with the standard recommendations such as separating data and log files onto different physical drives, etc. But how is this going to be possible when there are only 14 physical drives available in the MSA1000? I also have to be concerned about the other server that's attached. Any suggestions, besides getting additional storage... :)
Thanks.
File Placement On Server With 2 SQL Instances
Jan 25, 2008I have a server with 2 instances of SQL installed. There are 6 physical disks in the server which have been made into 3 mirrors.
The first mirror has the OS on it. Currently, the 2nd disk has all the database and transaction log files from both instances of SQL.
I plan to make use of the 3rd disk. My question is: is it better to move the database and transaction log files from the second instance to the new disk so that all the files for the first instance are on disk 2 and all the files for the 2nd instance are on disk 3 OR is it better to keep all the database files from both instances on disk 2 and move all the log files for both instances to disk 3?
I'm sure I have read somehwere that in this situation, the disks should be separated by instance rather than seperating by file type.
File Placement For Optimal Performance?
Aug 24, 2007What is the best performance for this configuration:
Files:
Data
Log
Indexes
tempdb
Disk:
A - RAID 10
B - RAID 10 (or should this be RAID 1?)
Whats best?:
A - Data and Indexes
B - tempdb and Log
??? Thanks.
SQL Server Admin 2014 :: Database File Placement And Number Of Files
Feb 2, 2015Database File Placement Layout? We are planning to implement a new SQL Server 2014 OLTP Database with a 1 TB Data file and 1 TB Log File. I am looking at the possible layout of the database files and trying to determine the best possible configuration. My knowledge/research tells me that items which need separate storage due to constant simultaneous access are:
Data files – should go on the fastest reading storage.
Log files – should go on the fastest writing storage.
TempDb – involves a lot of writing at the same time the data files are being read.
Indexes - (including full text indexes) - involves a lot of writing at the same time the data files are being read.
Also, are there any benefit to having multiple OLTP Database Log files? Because SQL Server writes to the log file sequentially, I do not see any advantages to having multiple database log files. In a SQL Server 2012 Class I took last summer, under “Determining File Placement and Number of Files”, it states “Use a single log file in most situations as log files are written sequentially.”
SQL 2012 :: TempDB Log File Usage Constantly Rising And File Keeps Growing?
Jun 16, 2014The TEMPDB transaction log file keeps growing.The database server is new and the transaction log was presized to 1 GB on installation. After installing a number of databases, the log file grew over a day to 38GB. Issuing a manual checkpoint was the only way to free some space to allow it to be shrunk back to a usable size. The usage of the file is still going up.
I am struggling to find what process is causing the log to be used so heavily. Looking at the log reuse wait desc for tempdb returns "Nothing" and tempdb itself isn't being used very much or growing in size.
Tempdb Log File
Oct 12, 2007Hello all I am new here so I am sorry if this question has been asked 1,000,000 times.
First let me describe my environment:
VM-Ware ESX 3.01
3.0Ghz (Dedicated to VM)
3.0 GB RAM (Dedicated to VM)
Windows Server 2003 SP2
SQL Server 2005 SP2
Spotlight for SQL Server
Quest SQL Watch
Now the issue:
We are in current development of a new manufacturing system so the above system is just a development box at this stage. The problem that I am having is that the tempdb log file seems to grow out of control, and if I do not have time to shrink it, I have to bounce the mssql service in order to do anything once the disk is completly full. At one point I even made a job to shrink the log file every 15 minutes to try and prevent the uncontrolled growth.
I have researched this everywhere and it really is starting to get frustrating. I am highly leaning towards the application that is utilizing the database is heavily dependant on #temp tables. So I found this query to return me the top colums being used in the tempdb.
SELECT OBJECT_NAME(id), rowcnt
FROM tempdb..sysindexes
WHERE OBJECT_NAME(id) LIKE '#%'
ORDER BY rowcnt DESC
And I get the table that is using up the most rows.
SELECT *
FROM tempdb..sysindexes
WHERE OBJECT_NAME(id) LIKE '#4440A7FE'
After doing this I figured out that there is something that is writing to the tempdb around every 15 seconds about 100000+ rows at a time. And the alarming thing about it is that the record "rowmodctr" is already over 1 billion. So that leads me to beleive that this has modified rows over 1 billion times since I last rebooted the server a week ago.
So the main question that I have is. Is there a way to query what is inside that '#4440A7FE' table, so that I can pin it down to a session?
Also I have already said to the development team to use "derived tables" instead of temp tables, but they just fight with me all the time and blame the problem on hardware and configuration.
Please please help me with this as it getting really frustrating I am so sick of shriking that file. And sometimes it grows more that 3GB in less than 15 minutes.
Tempdb Log File
Mar 22, 2007Hello when I start executing a transact SQL process, my tempdb file is about 5Mb and It's log file is 1Mb, when the process finishes the log file never gets cleaned again... so It uses a lot of hard disk space and I can't run the process again...
Pd. the process has a "begin tran" and a "commit" at the end...
Could you tell me what to do ???
Larg TempDB Log File
Oct 20, 2004My SQL Server Tempdb log file looks to be very larg now...its taking up lot disk space...
How is that I can control the size of tempdb log files...?? What should i do save some disk space...!!!
Please help
Tempdb File Size
Aug 26, 2007I have the classic "tempdb-out-of-space" problem. Unfortunately, my server fails to reboot properly as tempdb is located on the C: drive which is now completely full. While I understand the changes required to prevent this from happening again, I want to know if it will even reboot if I delete tempdb.mdf and tempdb.ldf. I've read conflicting information on MSDN about default tempdb file size:
- files are built to the default size (I will be fine)
- files are built to the same size as before (problem)
Which is true for SQL 2005?
Tempdb Log File Is Full
Jul 12, 2007
My Tempdb log file is getting full very frequently. I could see that tempdb log file is not getting truncate automatically since checkpoint is not occuring as execpted.
If a shrink the tempdb its getting truncated immediately and releasing the full occupied space.
So i come to an conclusion that auto checkpoints are not happening even though the tempdb is in SIMPLE recovery model.
I search in KB and could find the article related to this error.
http://support.microsoft.com/kb/909369/en-us
I would like to get it confirmed is the article described is the same issue i am facing. Also if you could let me know the hot fix details for this, that would be great.
SQL 2012 :: Remove TempDB NDF File
Jul 8, 2014I have added ndf to tempdb for checking performance improvement.... Now I want to remove the ndf file... I am using below command...
USE tempdb
GO
DBCC SHRINKFILE (3, TRUNCATEONLY);
GO
use master
go
ALTER DATABASE TEMPDB Remove FILE tempdev1
Results:
DbIdFileIdCurrentSizeMinimumSizeUsedPagesEstimatedPages
23766476643232
Error:-
(1 row(s) affected)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
Msg 5042, Level 16, State 1, Line 1
The file 'tempdev1' cannot be removed because it is not empty.
Note:
=>I restarted SQLServer from SSMS and then ran same commands mentioned above ,......and getting same error...
=> I executed above commands and restarted services...no change...
How to remove / drop ndf file...
The Log File For Database 'tempdb' Is Full.
May 23, 2007there is a sql job that failed yesterday. This job calls a store procedure. This store procedure doesn't use any temp table. But there are lots of updates and inserts clauses.
application log shows:
Error: 9002, Severity: 17, State: 2
The log file for database 'tempdb' is full. Back up the transaction log for the database to free up some log space.
----------------------------------------------------------------
tempdb.mdf 1.37gb
templog.ldf 19.6 mb
these files are located on D: drive and D drive has 52gb free space
databasename : tempdb
database_size: 1422.00 mb
unallocated space: 1403.60 mb
----------------------------------------------------------------
anyone to fix this?
i used "backup log tempdb with truncate_only" But i dont know if it truncated the log file?
how do i fix this problem.
Log File For Database 'tempdb' Is Full
Jul 20, 2005HiI am getting this common error once or twice a day:Error: 9002, Severity: 17, State: 2The log file for database 'tempdb' is full. Back up the transactionlog for the database to free up some log space.provided......1. My log file drive has more than 20 GB free out of 30 GB2. Both data file & log file has default setting on unrestricted filegrowth by 10%3. Currently we moved from SQL 7.0 to SQL 2000 & the load in the userside also doubled4. We can't do the temporary solution like restarting the server orSQL service, because the application is a real time system with muchless manual interaction.Thanks in advance.RegardsSeni
View 1 Replies View RelatedTempDB Growth And File Size
Aug 10, 2007We have a problem with the size of the tempdb.mdf file. The tempdb had grown to 25Gb and consumed all the available disk space. SQL server was restarted and the tempdb was reset back to the default size. The following day the tempdb suddenly increased in size from 200mb to 25GB within a very short space of time. There were a couple of event log entries from sqlservger regarding the lack of disk. Since then the server is running without any problems but the level of free space is virtually zero on the drive with tempdb.mdf file.
What would cause the tempdb to grow suddenly and to this size?
Can I control the size the tempdb can grow to?
SQL 2005 (x64) sp1
W2K3 R2 SP1
Tempdb.mdf Is Nota Primary Database File
Aug 6, 2007I really needed to move the tempdb file to another hard drive, so I used this bit of code.
USE master
go
ALTER DATABASE tempdb MODIFY FILE (NAME = tempdev, FILENAME = 'E: empdb.mdf')
go
ALTER DATABASE tempdb MODIFY FILE (NAME = templog, FILENAME = 'E: emplog.ldf')
go
Now sql server manager won't even start. The log files says
"tempdb.mdf is not a privary database file. CREATE DATABASE failed. Some file names listed could not be created.
WARNING: problem activiating all tempdb files. See previous errors."
Any ideas on how to make this program work again, without reinstalling it?
Autogrow Of File 'templog' In Database 'tempdb'
Dec 11, 2007I'm currently running the command below and getting this error message. I am getting it every few seconds for a couple hours now. Seems to have started when I started this SPROC below. I'm just over 2 hours into running.
Not sure what this means yet, any help is much appreciated. Desperately trying to resolve this urgent matter!
thanks once again!
mike123
"Autogrow of file 'templog' in database 'tempdb' was cancelled by user or timed out after 2813 milliseconds. Use ALTER DATABASE to set a smaller FILEGROWTH value for this file or to explicitly set a new file size."
EXEC isp_ALTER_INDEX
@dbName = 'db1',
@statsMode = 'DETAILED',
@defragType = 'REBUILD',
@minFragPercent = 10,
@maxFragPercent = 100,
@minRowCount = 1000
TempDB MDF File Is Increasing - Unable To Shrink It?
Apr 27, 2015Output of below query is
SELECT session_id,
SUM(internal_objects_alloc_page_count) AS task_internal_objects_alloc_page_count,
SUM(internal_objects_dealloc_page_count) AS task_internal_objects_dealloc_page_count
FROM sys.dm_db_task_space_usage where internal_objects_alloc_page_count >10 and session_id> 50
GROUP BY session_id;
[Code] ....
Database MDF is 27806 MB and I tried to shrink but unable to shrink. It is production server.I do not want Restart sql server.There is no open transaction.
DB Engine :: Cannot Remove One Last Data File From TempDB
May 19, 2015In tweaking performance of tempdb by adding add'l data files I want to reset back to defaults and remove all add'l files I've created. I was not able to do it for most as they were in use, but by starting the server in single-user mode with all other sql services shut off, and using sqlcmd I was able to use the ALTER DATABASE tempdb REMOVE FILE <tempdev#> to remove the files... except for one.
I have also tried using the command:
ALTER DATABASE tempdb MODIFY FILE (NAME = tempdev#, FILENAME = '<new location');
Restarted SQL server, and tried the ALTER DATABASE ... REMOVE FILE again but am always denied with the message that the file can't be removed b/c it's still in use.
I also tried to shrink it with EMPTYFILE but that also fails with the message that a page is a work table page and can't be removed.
I really need to get tempdb back to just one data file but am unable to find a way to remove this last data file.
The Log File For Database 'tempdb' Is Full. Back Up The Transact
Oct 28, 2006Can anyone explaing briefly, why would this error appears???
Thank you
SQL Server 2008 :: Initial Size For TempDB Data And Log File?
Sep 12, 2011We have installed SQL Server 2008 R2 SP1 instance and it's having Share Point 2010 databases.
We have 2 dedicated drives for Tempdb on SAN with 50 GB space. Both tempdb data & log files are created with default size. I would like to presize them.
What are the best values to start with?
U ->Tempdbdata having tempdb.mdf file
V->Tempdblog having templog.ldf file
DDL Placement In SP For Improved Performance?
Mar 14, 2008Hey guys
I have someone telling me that you can improve performance in SP's by placing all the DDL at the beginning of the procedure. ie. Do all your CREATE TABLE #tbl and DECLARE's before the rest of your code.
Any thoughts on this?
Placement Of Sys.conversation_endpoints And Sys.transmission_queue
Dec 21, 2006Is there any thought going into moving these two tables to a file group that we can control? Putting this in Primary with the rest of my system tables is quite problematic, and hinders my ability to manage space usage on my files. Traditionally, we didn't have to consider a primary file group that could grow to large proportions, but now with these two tables it can. If a large volume of messages gets sent through and the system can't keep up, then these tables and my primary file group will grow sometimes enormously.
View 8 Replies View RelatedSQL Server 2008 :: TempDB Datafile Initial File Sizes Changed?
Mar 18, 2015I have an instance with 4 datafiles for tempdb each set at initial size of 4G and growth rate of 100MB. After some time the initial file sizes seem to have changed automatically. They now read 3962,100,3688 and 2847 respectively. Is this something done by SQL Server itself? I cannot imagine that it was done manually.
I don't think there was a restart after the initial sizes of 4G were set, could this be related to the problem?
Recommendations For Placement Of ZIPCode Table
Apr 30, 2007 We are creating a company-wide table of ZipCodes, States, GPS info, etc. This table can be used by our development and production servers (many of them.) We could place the table on a given server and use linked servers to grant access to that table to the other servers. But is there a better way to handle this globally-useful table?
Barkingdog
P.S. Clearly, we don't want to have multiple copies of this table scattered around on various servers. That introduces synchronization issues.
SQL Server Admin 2014 :: How To Allocate The File Sizes (Disk Partition Alignment For Tempdb)
Jun 29, 2015I have question about tempdb needs to be configured 100GB 64kb block size.its fresh installation.
how to allocate the file sizes.still im not sure how many log files needs to be created with 100GB equals to 64KB block size.
what is 64KB block size and how to divide the logfiles 64KB into the 100gb or 50GB?
what is 64 KB cluster has 128 sectors?
tempdb drives should be formatted with a 64K allocation? how many files needs to created for good performance with 50GB or 100GB? ot 1TB
Reporting Services :: Placement Of Parameters In Report Header
Jul 2, 2015I've got a feeling that the answer is, "can't be done," but I'll go ahead and ask the august members of this forum, anyway. Is it possible to alter the placement of the Parameter fields when previewing a report?
At the moment, it seems that they form in a column of twos, reading from left to right. I see how the ORDER is affected, by changing the order of the parameters in the Report Data window, but can I change the number of columns?
SQL Server 2008 :: If Exists Placement Theory For Optional Tables
Nov 4, 2015I like writing concise and compact sql code without cursors if possible. My current dilemma has me stuck though.I have 3 tables, but one of them is optionally used and contains a key element of TimeOut to determine which Anesthesia CrnaID to use. It is the optionally used part that has me stumped.
Surgery table
CaseID
Patient
(Sample data: 101,SallyDoe 102,JohnDoe)
Anesthesia table
CaseID
CrnaID
(Sample data:
101,Melvin
102,Bart
102,Jack)
AnesthesiaTime table (this table is optionally used, only if the crna's take a break on long cases)
CaseID
CrnaID
TimeIn
TimeOut
(Sample data:
102,Jack,0800,1030
102,Bart,1030,1130
102,Jack,1130,1215)
Select Patient INNER JOIN Anesthesia produced too many case results. So, I figured out there is an AnesthesiaTime table that only gets used if the anesthesia guys take time-outs. That doesn't happen all the time. I could use TOP 1 on the Anesthesia table, but technically I need to read the AnesthesiaTime table and locate the last time and pull that crna, Jack. I'm not sure how to deal with an optional table. I believe the IF Exists will be pertinent, but not sure of how to build this query. I've tried subquery without success.