Partitioning C: Drive For Transaction Log?
Oct 25, 2001
Hi,
Just got a new box and want to fully optimize the server. I was contemplating where to put the transaction log? I have 2 drives:
Drive C: 30 Gig(Operating System)
Drive E: 180 Gig(Database file)
I'm planning to build the database in Drive E:, but am leaning to put the transaction log in drive C:. Do you think it's a good move? I want to separate the log and data files, but Drive C: is host the operating system. Do you think it would be wise to partition drive C: and put the operating system on one partition and the Transaction log on the other? Does it enhance performance in anyway?
Thank You!
Joe
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Dec 23, 1999
We have purchased a new Server at my company. We previously had two servers. One was the NT file server and then we had another SQL Server. Well, we've bought one box to replace both old boxes. I have 3 18.2 GB SCSI drives running on a RAID-5 configuration. I've partitioned the C: drive as 2GB and it will only be used for NT files and NT Utility apps.
On the old system I had all my data files on one physical drive and all of my logs on a seperate physical drive. Now, with RAID, the three drives act like one big 36GB drive. Finally, my question...
How should I partition this drive? Should I put the SQL Server App, my data files and my logs all on one partition? Should they each have their own partition? Should it be a mix (App & Log, Data & Log, etc.). Also, how much space do I need just for the application if I put it in its own partition?
I've never installed SQL Server before, so if anyone has any other suggestions, tips, tricks, etc., I'd love to hear it. Either post here or e-mail me responses.
Thank you all very much
Merry Christmas!
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Jan 19, 2001
Hi,
I'm trying to move the transaction logs of my databases to a different drive (for fault tolerance). I can create a second transaction log file for each database via Enterprise Manager but I have 2 questions:
1) If two transaction log files exist for a database which one does it use ?
2) How do I force SQL to use the new transaction log file ? (so I can delete old)
Thanks,
Tim
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Apr 17, 2007
Hello guys and girls. I have installed SQL Server 2005 Standard Edition and I have specified that the databases should be created on the K: drive. This is okay but now I need to move all the transaction log files (.ldf) to the L: drive. I have already changed the default location for the log files to point to the L: drive and the new databases that were created after the installation have their transaction log file correctly in the L: drive but now I need to move transaction log files for the master, model, temp ... databases. How can this be done? And are there any gotchas?
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Feb 17, 2015
We had some SAN issues and we dont have Transaction Log files for some databases.. The drive which was holding this Tlog files were missing.. How to bring back databases.
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Oct 26, 2015
The MDF and LDF files are placed in SSD drive and tempdb files are placed in HDD drive. Snapshot isolation is enabled on the database. When a script is executed to insert data with NULL value to a table which has NOT NULL column, the transaction fails and then a log undo happens which fails and takes the database to suspect mode.
But when the MDF and LDF files are placed in HDD drive all this do not happen. The transaction just fails.
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Apr 4, 2008
Hi
I have been trying to use openrowset with a shared drive, and even though the share has "full control" permissions granted to "everyone" and the accout that SQL runs under has been granted explicit full control permissions I am unable to open the file which itself has no security on it.
Can I not use a \ path and only use mapped drives?
Thanks
below works...
SELECT * FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0','Excel 8.0;Database=C:5People.xls', [Sheet1$])
below doesn't work...
SELECT * FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0','Excel 8.0;Database=\cluster02FileManager5People.xls', [Sheet1$])
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Nov 9, 2000
I am trying to move a log file from one drive to another.
What I have done is add another file to my file group. So now my log has a file on the 'e' drive and one on the 'f' drive. I now want to remove the file on the 'e' drive. I have emptied the file on the 'e' drive. When doing the command:
ALTER DATABASE Uniprodruntime
REMOVE FILE m_rk_runtime_log
I get the following error message..
Server: Msg 5020, Level 16, State 1, Line 1
The primary data or log file cannot be removed from a database.
I have also gone into enterprise manager and tried to delete the file and it does nothing.
Has anyone run into this?
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Feb 12, 2007
How do you compare SAN drive vs local drive on a 32 bit server?
Is it good idea to move my DB files to a SAN instead of local?
Canada DBA
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Nov 28, 2015
Server: SQL 2008 R2
1: TempDB keeps getting filled. Restart of the server has not fixed it. I shrink it, but the space gets filled again. Now I can't even shrink it anymore
2: TempDB is at the wrong location. Its current location is this :C:Program FilesMicrosoft SQL ServerMSSQL10_50.SQLPROD6MSSQLDATA empdb
How do I change its location?
C:Program FilesMicrosoft SQL ServerMSSQL10_50.SQLPROD6MSSQLDATA empdb
Correct location of TempDB should be: TempDB(T:) But its not there
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Jan 31, 2008
Being a very novice SQL Server administrator, I need to ask the experts a question.
How do I go about moving a database from 1 drive to another? The source drive (C is local to the server, but the target drive (E is on a Storage Area Network (SAN), although it is still a local drive for the server. I want to move the database from C: to E:. Can someone provide me with instructions?
Thanks,
Rick
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Jan 16, 2015
How to backup half of dbs from a server on C drive and the other half on D drive and vice versa, first half on D drive and other half On C drive using only one job and one stored procedure??
Using scheduling from job add 2 schedules to the job so first schedule backup first half to C and second half to D , the second schedule backup first half to D and second half to D.
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May 31, 2008
Hi All
I'm getting this when executing the code below. Going from W2K/SQL2k SP4 to XP/SQL2k SP4 over a dial-up link.
If I take away the begin tran and commit it works, but of course, if one statement fails I want a rollback. I'm executing this from a Delphi app, but I get the same from Qry Analyser.
I've tried both with and without the Set XACT . . ., and also tried with Set Implicit_Transactions off.
set XACT_ABORT ON
Begin distributed Tran
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1 and DONE = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
COMMIT TRAN
It's got me stumped, so any ideas gratefully received.Thx
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Feb 22, 2007
I have a design a SSIS Package for ETL Process. In my package i have to read the data from the tables and then insert into the another table of same structure.
for reading the data i have write the Dynamic TSQL based on some condition and based on that it is using 25 different function to populate the data into different 25 column. Tsql returning correct data and is working fine in Enterprise manager. But in my SSIS package it show me time out ERROR.
I have increase and decrease the time to catch the error but it is still there i have tried to set 0 for commandout Properties.
if i'm using the 0 for commandtime out then i'm getting the Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
and
Failed to open a fastload rowset for "[dbo].[P@@#$%$%%%]". Check that the object exists in the database.
Please help me it's very urgent.
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Feb 6, 2007
I am getting this error :Distributed transaction completed. Either enlist this session in a new
transaction or the NULL transaction. Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.OleDb.OleDbException: Distributed transaction completed. Either
enlist this session in a new transaction or the NULL transaction.have anybody idea?!
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Dec 22, 2006
i have a sequence container in my my sequence container i have a script task for drop the existing tables. This seq. container connected to another seq. container. all these are in for each loop container when i run the package it's work fine for 1st looop but it gives me error for second execution.
Message is like this:
Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
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Jan 8, 2008
Hi,
i am getting this error "Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.".
my transations have been done using LINKED SERVER. when i manually call the store procedure from Server 1 it works but when i call it through Service broker it dosen't work and gives me this error.
Thanks in advance.
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Sep 10, 2007
Hello
I have a table containing 100,000 record for each year, and every year a new 100,000 record are inserted,I need to know how to make partion this table by year
I need to know the syntax
Thank you
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Jul 25, 2006
I have begun my quest to become familiar with SQL 2000 table partitioning and have had some success.
I've partitioned tables according to the "rules" and guidlines of other papers and the show plans look good for all cases.
But when I went to create another demo series, I got stuck.
I've created two tables, with the appropriate CHECK constraints, and with a "union all" view.
When inserting data, it goes to the right tables.
When reading data with a where clause like:
col1=10,
the show plan shows the query getting the data from the ONE correct table.
BUT
When the where clause looks like:
where col1 between 1 and 10:
the showplan shows the query getting data from both tables, instead of the table that 1 to 10 belongs to.
Help!
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Apr 22, 2008
Hi guys,
1) I'm about to implement SQL Table/Index Partitioning for the first time. It seems really good, no downside. Is there an "Gotcha's" I gotta be weary of?
2) My tests show a clear performance gain. Is there a performance loss in other areas?
In "Designing Partitions to Improve Query Performance" it says this:
"In this way, the SQL Server query optimizer can process the join faster, because the partitions themselves can be joined. If a query joins two tables that are not collocated or are not partitioned on the join field, the presence of partitions may actually slow down query processing instead of accelerate it."
What does that mean?
If I have:
Select A.Col1, B.Col3
from A
join B on A.Col5=B.Col6
Does that mean I have to partition A.Col5 & B.Col6 the same way else my queries will get slower?
3) Does it take up more space? Do restores take longer?
4) How much maintenance is involved?
Is there a way of automating the creation of new partitions? Or do you just create loads that you'll need in the future e.g. always have a few months' partition created ahead of time?
The "Designing Partitions to Manage Subsets of Data" article in BOL seems to indicate some manual work every month (if you have a monthly partitioning strategy).
5) Why not partition every table that has over say a million rows?
6) If I create a Yearly Partition on a table that has been around for a long time, will it automatically partition all the indexes on that table? Or do you have to re-create the indexes for that to happen?
7) Neither table can have a full-text index in a partition move. Does that mean you can't ever partition tables with full-text indexes?
8) Partitioning doesn't seem to fit well with replication. Do you have to end up choosing between the two?
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Mar 27, 2008
i have a table named "user" in which user which are located at different places within a city are recorded.
i want to group user with respect to there location like users of northern region are recorded first then users of western region and so on.
tell me from horizontal and vertical partitioning wh technique is better or i should use some other technique.
thanks for ur consideration.
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Jan 24, 2002
Hello all. My company's in the process of configuring our new Dell server boxes. We're contemplating whether to partition the drive (where DB will reside) into 1 large partition or several smaller partitions.
What are the pros and cons of each option? Any suggestion will be greatly appreciated.
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Nov 14, 2000
Hi,
I want to know more on table partitioning.I do not know where to get the right info.from.
I have a doubt - if a table is partitioned horizontally how does a query identifies where to pick up the data from i.e. from which part of partitioned table?
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Oct 9, 2004
I'm faced with a project that requires the caching of vacations.
Each vacation has a departure date & a price.
The amount of different vacations that will need to be cached is probably near 1 million per day.
I will then need to select the price(s) of vacations for either a single day or a date range (based on the vacation criteria).
I was considering creating a new partition (table with a date on it) every day.
This would allow me to jump into the needed table(s) based on the vacation search criteria. This would also allow me to drop tables with past dates.
I was considering running this all on 1 sql server. I was hoping I could create multiple threads for a datespan search and hit all the tables in the daterange at the same time.
Can you guys enlighten the noob on where I really need some help on this?
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Apr 3, 2006
Hi,
I am trying to implement partitioning on a table
depending upon the fiscal_month value...
The current values are from 1-6...
Create partition function LoadDataPartitionFunction ( smallint)
as
Range for values (1,2,3,4,5,6)
-- drop partition scheme LoadDataPartitionScheme
create partition scheme LoadDataPartitionScheme
as
Partition LoadDataPartitionFunction ALL to ([PRIMARY])
CREATE TABLE Load_Data_Partition (
[RowID] [int] NOT NULL,
[Fiscal_Month] [smallint] NOT NULL,
[Fiscal_Year] [smallint] NOT NULL,
....
[Service] [nvarchar](100) COLLATE
) ON LoadDataPartitionScheme (Fiscal_Month)
truncate table Load_Data_old --- same schema as load_data_partition
Alter table load_data_partition switch partition 1 to Load_Data_old
-- which month's data to be moved out
alter partition function LoadDataPartitionFunction () merge range (1)
Alter partition scheme LoadDataPartitionScheme next used [primary]
-- which months data to be moved in
alter partition function LoadDataPartitionFunction () split range(7)
Select * from sys.partition_range_values
function_id boundary_id parameter_id value
----------- ----------- ------------ -----
65545 1 1 2
65545 2 1 3
65545 3 1 4
65545 4 1 5
65545 5 1 6
65545 6 1 7
Alter table [Load_Data_new] switch to [Load_Data_partition] partition 6
ALTER TABLE SWITCH statement failed. Check constraints of source table Load_Data_new' allow values that are not allowed by range defined by partition 6 on target table 'Load_Data_partition'.
Values in Load_Data_new for fiscal_month is 7
But when i try
Insert into [Load_Data_partition]
Select * from [Load_Data_new]
where fiscal_month = 7
it works fine...
reference used : http://www.sqlskills.com/resources/Whitepapers/Partitioning%20in%20SQL%20Server%202005%20Beta%20I I.htm
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Nov 21, 2006
hi all,
before i had a big database more than 90GB and it's growing very sharp so what i did is to create a summary database that gonna hold some aggregation and i create also three tables that gonna hold the data, on will hold the data for the last three months (very detailed information) one between 3 months and a year(less detailed) and the last one older than a year(less less detailed) these are the company requirement i'm working with.
then i transfer the data to the new tables with stored procedures.
now my question is: do i need to create a view for these three tables? and if yes how should i do it?!! cus i do not have the same columns in the three tables.
thanks experts.
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Jun 16, 2008
i want to partition a table containing about 3 million rows. The partition column will be of datetime type.
following is the partition function i have used
create partition function MyPartFun
(datetime) as range left for values ('07/30/2007','09/30/2007','11/30/2007','01/30/2008','04/30/2008')
following is the partition scheme i have used
create partition scheme PartScheme as
partition MyPartFun all to ([primary])
i know how to add partition column while creating the table
But dont know how to add above partition scheme to an already populated table
Plz help...
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Jan 4, 2007
Snehalata writes "does view for vertical partitioning improves the performance, since the view will have all the columns which exist in the original table(without partitioning?"
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Apr 24, 2007
Hi,
I have a database created using Enterprise Manager Wizard.
For example datafile db1_data.mdf and log file db1_log file exists.
All the tables are created in datafile db1_data.mdf.
Now to improve performance I want to implement table partitioning.
Can anybody tell me howto implement it with existing strutcure.
Suppose there is table Mytable in which all update and delete actions are performed regularly.And it contains about 10,0000 records.
I want to partition the table so that it contains 5000 records.
Solution with example highly appreciated.
Satish
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May 4, 2007
How to partition tables in dynamic way?
I want to partion a table based on the client specific id and I want these values (client id's) to be passed dynamically to the create partition function.
I am not familiar with partitioning so it will be great if someone guides me (I am also reading some articles on partitioning, but it will be easier with some help)
The table I am trying to partition has like 80 million rows with four client's data as of now and will be more once we implement new clients.
I also think Partition will help, because before we load a client's data, we remove the data that is already out there (we flush previous qtr data before we insert this qtr data)
Any help will be appreciated.
Thanks
Raj
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Jun 6, 2006
two questions:
Im using Snapshot replication;
1. how can I replicate database1.table1 to database2.tablex1
by default replication will replicate it to database2.table1
2. If i have database2.table1 sitting on 10 partitions
where table is partitioned on PK_x where x is divided by 10
how can i make tableX1 to be a member of database2.table1
sitting on the 7th partition. that is pk_x = 70-79
partition schemes and function are already set
thanks
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Dec 13, 2007
Hi Experts,
I am new to Table Partitioning, Can any body guide me how to do table partitioning?
any way here is my scenario, we are having one database called "DATA" in SQL 2000 server and we have migrated to SQL 2005 by using backup and restore. and "DATA" is having about 15 tables and they are very very very big in size. and they dont have any index on a coulum name "DATETIME", but i want make table partition according to that perticular field "DATETIME" and right present we are having 6 months of data.
So, how to proceed further?
Your help will be appreciable..
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Mar 19, 2007
i am trying to partition an sql table in sql server 2005, i created the partition schema and the data files that i want the data to be filled in after the partition. After the partition is finished sql gave me partition is successful , but i noticed that the size of data files i created has not increased and their sizes are the same.
notice: i have a clustered index on this table, so i dropped this index and recreated it
Bellow the script that i am using
and thank you for your help in advance
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