System Databases On Different Disk Partition
Aug 19, 2007
Hi all,
I'm having some performance-wise thoughts about my new sql-server 2005 installation ...
I have my SQL installed on one partition (the system dbs are also on that partition by default), my regular databases (non system dbs) are on different partition.
The question is - if my sys dbs are on different partition, could I experience some performance issues ?
One senario that I can think of is when the SQL looks for SPs starting with sp_ in the master DB, the disk will have to check a different partition. Perhaps such senario was solved using some kind of caching methods on the sql server itself.
Hope my thread is in the right forum.
Cheers everyone.
View 6 Replies
ADVERTISEMENT
Sep 27, 2006
Can you please tell me what the largest disk partition size is for a clustered SQL Server 2005 installation (64 bit edition)? I have been told it is 2 Terabytes - can anyone confirm this?
Many thanks
Shirley
View 1 Replies
View Related
May 26, 2004
Hi,
I have a sql server 7 running on a machine with two disk partitions (D: and E:).
The data files xxx.mdf and xxx.ldf are stored in D:, which has very few space available. I want to copy these files to E: but I get an error saying that it is not possible to change the source file of a database. Is it possible to do it or do i have to create another data file in E: and keep the old one in D:?
Thanks in advance,
browser
View 3 Replies
View Related
Aug 11, 2005
Trying to install SQL Server 2005 beta version on partition disk drive sayF: (Other than local disk drive c:),Does anyone know how can I do this? During the installation, it never asksme on which drive it install to nor browse button is there to browse thedisk drive for installation...Any help???ThanksJ.
View 1 Replies
View Related
Jun 29, 2015
I 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
View 3 Replies
View Related
Mar 2, 2006
Hi all,
Need some help with configuring the Disk Sub system using Raid 10
1. What shud be the disk configuration to have 4000 inserts per second on a RAID 1+0 ?
2. What is the best way to maintain a Hot Stand by Server for a very high OLTP system ( say for a day Trading Database ).
Thx
Venu
View 3 Replies
View Related
Aug 13, 2002
Hello ,
I wanted to know on what basis the disk space allocation for the databases is planned . Suppose if we plan 60 GB for data files ( mdf )for a given database then what should be the space allocation for the log files ( ldf ) and the tempdb ( both mdf and ldf files ).
Is there any thumb rule or any defined ratio for the same ?
Thanks
View 1 Replies
View Related
Jul 20, 2005
I 'inherited' a group of SQL Server server class machines. They aretrue server technology but the disk sub-systems are lacking. There isone hot-swap backplane that all the drives share (with one SCSIchannel) thusly even though there are three logical drives (composedfrom 6 to 8 hard drives), they all go through one channel. This iscreating a performance issue that is noticable and can be seen invarious performance counters that Microsoft recommended one shouldmonitor in terms of disk I/O. For a cheaper 'fix', I can add aseperate two drive bay (with its own SCSI channel) with mirroreddrives. I would then mostly likely place the transaction log files onthis new channel. Or I could place the indices filegroup files onthis new channel for DBs with mainly searching going on (not muchupdating). If I went this route I would be leaning towards thetransaction log move since the second method would require me movingDBs around quite a bit. Any input on this solution (besides spendingmore money)?What I would prefer to do is get a better server class machine or addan external drive bay solution (not a SAN). I would try to get threeor four SCSI channels in the new hardware to split the differentfile/filegroups out (i.e. transaction logs files, data filegroup,indices filegroup, etc.). My only concern here is: would this moreexpensive solution be worth the money? As far as replacing servers, Ihave only two kinds of experience...replacing somewhat underpoweredservers with slightly less underpowered servers and replacing overkillservers with even more overkill servers. In both cases, the disksub-systems were fairly equivalent from the old system to the new one.Will going the three/four channel route really get data moving along?We have one server in particular that hosts a database (one of many onit) for a web application that gets decent traffic (it is a privatelogin based system for internal use and external use by our clients'agents). Periodically throughout the day, there are 2-5 minute burstswhere performance slows to a crawl. I want to spend more timeprofiling queries and such before recommending we spend more money,but the folks I am working for want quick results and there is quite abit of stored procedure logic to profile and investigate. I know thedisk sub-system is definately in need of an overhaul, but I would liketo get an idea of peformance gains from adding either one additionalchannel over the existing single channel as well as going thethree/four channel route over the existing single channel setup.Any information would be greatly appreciated.Regards,Tony
View 2 Replies
View Related
May 14, 2007
Summary: Started replication April 1 of 4M xact / day publishing system to subscribing system.
Performance was good. Latency was ~ 5-7 seconds.
May 10 we noticed that the DB was behind (latency was 12 hours).
All performance counters seem good with the exception of the disk.
. Performance spikes are 8 minutes apart and last from 30 - 60 seconds.
. During this period, Disk % Busy (1 - Disk % Idle) is 100%
The publisher DB publishes about 50-52 xacts/sec.
Rate of distribution (distribution DB to Subscriber DB) is ~ 47 xacts / second, so latency is increasing (currently at 33 hours). Previously my Subscriber system's "capacity" was 150 xacts / sec.
I know this because several weeks ago, the network went down, we were 24 hours behind.
When the network came back up the replication subscriber system was able to catchup at around 150 xacts / sec, or 3X the production system rate.
What has changed between then and now? Not much. We did install Tivoli Service Manager (IBM's backup system) a couple of weeks ago. It seems to run fine on a nightly basis, but I don't see any periodic heavy Disk I/O from that. Just to be sure, I've had them shut the TSM services down just to be sure.
We've also eliminated all extraneous processes other than those I need for performance monitoring (there was a RTVscan, virus scan process).
I've eliminated Autogrowth's as an issue as I've bumped the growth so that they are very infrequent (several days at this point. When we resolve the problem, I'll dial this down to something more reasonable.
My disk configuration is not ideal I realize (single Raid-5 disk with 3 partitions), however, this has not changed in the 6 weeks.
Thanks for any help on this!
Jack Griffith
Configuration:
Subscribing System:
SQL Server: 2000, SP4 - 8.0.2039
CPU - 2.8GHZ Xeon, Quad Dual-core
Memory - 3.5GB RAM
Disk: 3 partitions on a single RAID-5 disk with 1118 GB of space:
C: 39GB System and Programs
D: 97GB Log space
E: 982 GB Data space
Replication configuration:
- nosynch, continuous Transactional Replication
- Distribution db is on Subscription system
- distribution - Publication of approx. 50 transactions / second
Subscriber DB configuration:
DB size: 64458 MB
Logging: Simple (at this point)
distribution
DB size: 3111 MB
Logging: Simple (at this point)
View 1 Replies
View Related
Dec 28, 2006
hello,all
I am new to Sql 2000,I installed sql 2000 database in C disk,but Now I found my C disk space is smaller than before,So I want to move my databse(include data and structure) from C Disk to D Disk(its space is very large) .
is it possible to do it ?
if its can be done ,do I need to change my asp.net program source code (exp: chaneg my crystal report connectstring ) ?
thanks in advanced!
View 1 Replies
View Related
Jun 21, 2004
I want to split the data and log files of the system databases to separate hard disks. How can i accomplish this and is this a good idea to do so ?
View 4 Replies
View Related
Jun 18, 2008
Hi,
How do I check he data file size, transaction log size and autogrowth setting of each of the system databases please?
I am not sure if sp_helpdb works for these?
Thanks
View 1 Replies
View Related
Apr 16, 2002
Hi,
I would like to move system databases (master, model, and tempdb) from one disk to another. What would be the best way to do it?
your help is appriciated.
Cheers
View 3 Replies
View Related
Oct 25, 2000
Hi,
I installed desktop edition of SQL Server7.0 but System databases are not displaying.only showing pubs and northwind only.any body help me.
Thank you
Novah
View 2 Replies
View Related
Feb 1, 2005
hi,
I have just started a new job and they have nightly backups of the master, msdb and model databases.
But why would you need a nightly backup of the model database? surely the model database never changes, so would a one time backup not be sufficient?
Please advise me if I am incorrect
Cheers
View 4 Replies
View Related
Apr 28, 2015
I have some questions :
1.Is it OK to shrink Master, model ? the transaction log for those databases are full .
2.Is it OK to set the Recovery model of Database MODEL as SIMPLE ? at the moment it is in FULL recovery model and the transaction log is Full too
View 9 Replies
View Related
Sep 11, 2007
The consultant hired as our Remote DBA for SQL Server 2005 recently changed the recovery model on our user database from Full to Simple. He explained this was necessary because the transaction log was growing very large and backing up the database when the model was set to Full was not shrinking it. Now, the master database and the msdb database are backed up daily along with our user database.
When we need to restore our user database, do we need to restore the master database and the msdb database too? What order should the databases be restored in?
View 13 Replies
View Related
Jul 20, 2005
We have C:, D: and E: drives on our server box. C: drive ispartitioned and is big enough only to hold Operating system files. D:and E: drives are what were supposed to be used by developers / dba'sto store / create SQL Server (system and user databases).Well, some developers installed the entire SQL Server named instanceand their system and user defined databases on the C: drive. Is thereany way to move the system databases (master, msdb, distributionetc.,) from the C: to the D: / E: drives?Appreciate any feedback.ThanksJagannathan Santhanam
View 3 Replies
View Related
Nov 29, 2007
As an effort to rebuild system databases, I ran following command
start/wait C:Setup.exe /qn INSTANCENAME="DEV$SQL02" REINSTALL=SQL_Engine REBUILDDATABASE=1 SAPWD="strongpassword"
I brought setup.exe file from installation cd to c drive of the server. My SQL Server is DEV and SQL Instance is SQL02. While running above command in command prompt (from C: prompt) I have an error masage that said 'setup failed' without any specific cause given for the failure.
I am doing above as part of disaster/recovery procedure in test environment.
Could anyone please shed some lights on what are the steps or what went wrong above while rebuilding master databases.
Thanks a lot
Mike
View 4 Replies
View Related
Oct 26, 2005
I have been attempting to detach and reattach the model database. I tried to set the Trace Flag 3608, but it is having no effect.
View 17 Replies
View Related
Feb 8, 2007
Hi All,
I need to do a restore of all my system databases, master, msdb and model, and of course my production database.
The Windows 2003 OS and Sql Server 2005 have both been reinstalled on the server.
I understand I need to be in Single User Mode to restore the master database and I just wanted to clarify the procedure for a successful restore.
I've found this page: http://msdn2.microsoft.com/en-us/library/ms190679.aspx which has instructions for restoring a master database.
So, all I have to do is:
1. Be in single user mode
2. Using SQLCMD run:
C:> sqlcmd
1> RESTORE DATABASE master FROM DISK = 'Z:MyBackLocationmaster.bak';
2> GO
From the instructions:
"After master is restored, the instance of SQL Server shuts down and terminates the sqlcmd process"
My Questions:
When I've restored the master do I repeat the steps above to restore the msdb and model databases?
Are there any other pitfalls?
Thanks for any advice
Melt
View 1 Replies
View Related
Jul 7, 1999
I am new to SQL Server 7 and have inherited a server built by a consultant that is no longer here. I have noticed that the system databases (master, msdb & model) are completed backed up on a nightly basis and are all set with truncate log on checkpoint. Is this the proper way to have things set up?
Thanks.
Mike
View 1 Replies
View Related
Nov 12, 2002
Hi,
i´m looking for TSQL-Code (7.0/2000) to identify, if a SQL Server Database ist a SystemDatabase or a UserDatabase. In the sysdatabases there is no information abount that.
Skol,
Peter
View 4 Replies
View Related
Jan 11, 2014
whenever we are moving system databases from one drive to another, do we need to move the path physically? or it automatically moves.I want to try the rebuild the sql server. So I want to corrupt the master database so, I deleted the master mdf file and restore it back but instead of database corruption it is giving the following error message. How can I corrupt the master database and can practice the rebuild the server.
And one more thing when I try to use the repair option I couldn't able to get all the things back to normal. The database engine service, replication is not working but SSAS, SSRS things are showing successfully repaired.
2014-01-10 21:34:26.44 Server Error: 26055, Severity: 16, State: 1.
2014-01-10 21:34:26.44 Server The SQL Server failed to initialize VIA support library [QLVipl.dll]. This normally indicates the VIA support library does not exist or is corrupted. Please repair or disable the VIA network protocol. Error: 0x7e.
2014-01-10 21:34:26.44 Server Error: 17182, Severity: 16, State: 1.
2014-01-10 21:34:26.44 Server TDSSNIClient initialization failed with error 0x7e, status code 0x60. Reason: Unable to initialize the VIA listener. The specified module could not be found.
[code]....
View 9 Replies
View Related
Jan 5, 2007
I am having trouble rebuilding the SQL 2005 system databases on my cluster.
The Cluster hardware failed completely and I am recovering from scratch (but only 1 node at this time)
The Win2K3 OS is recovered and communicating with the domain.
Cluster services have started and the quorum is online.
The clustered SQL instance is offline because there is no master.mdf present.
I run the setup command as per BOL:
start /wait setup.exe /qn VS=<VSName> INSTANCENAME=<InstanceName> REINSTALL=SQL_Engine REBUILDDATABASE=1 ADMINPASSWORD=<StrongPassword> SAPWD=<NewStrongPassword> SQLACCOUNT=<domainuser> SQLPASSWORD=<DomainUserPassword> AGTACCOUNT=<domainuser> AGTPASSWORD=<DomainUserPassword>
The Summary.log reports the following:
Machine : CLUSTER1
Product : Microsoft SQL Server 2005
Product Version: 9.00.1399.06
Install : Successful
Log File : C:Program FilesMicrosoft SQL ServerSetup BootstrapLOGFilesSQLSetup0001_CLUSTERSVR1_SQL.log
--------------------------------------------------------------------------------
Setup succeeded with the installation, inspect the log file completely for status on all the components.
However the Microsoft SQL ServerMSSQL.1MSSQLDATA directory is empty. There are no system databases.
Without a rebuilt Master I cannot bring the clustered SQL instance online to then restore my database backups.
Any ideas?
D.
View 7 Replies
View Related
Mar 16, 2007
I am in the process of moving my system databases to another volume. I have accommplished the first section pertaining to master database.
I have reached step 3 in the Resource database move section down below.
It states to change the FILENAME path to match the new location of the master database. Do not change the name of the database or the file names.
ALTER DATABASE mssqlsystemresource
MODIFY FILE (NAME=data, FILENAME= 'new_path_of_mastermssqlsystemresource.mdf');
I changed the query to point ot the new location of the master, (E:MSSQLData)
ALTER DATABASE mssqlsystemresource
MODIFY FILE (NAME=data, FILENAME= E:MSSQLDatamssqlsystemresource.mdf');
I get the following error when I run the query:
Could not locate entry in sysdatabases for database mssqlsystemresource. No entry found with that name. Make sure that the name is entered correctly.
What am I doing wrong? My syntax must be incorrect. But I can't figure it. Anybody done this before.
These are the steps per msdn.
****************************************************************************************************************
To move the master database, follow these steps.
1. From the Start menu, point to All Programs, point to Microsoft SQL Server 2005, point to Configuration Tools, and then click SQL Server Configuration Manager.
2. In the SQL Server 2005 Services node, right-click the SQL Server (MSSQLSERVER) service and choose Properties.
3. In the SQL Server (MSSQLSERVER) Properties dialog box, click the Advanced tab.
4. Edit the startup parameters values to point to the planned location for the master database data and log files and click Apply. Moving the error log file is optional.
The parameter value for the data file must follow the -d parameter and the value for the log file must follow the -l parameter. The following example shows the parameter values for the default location of the master data and log files.
-dC:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmaster.mdf;-eC:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG;-lC:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmastlog.ldf
If the planned relocation for the master data file is E:SQLData and the planned relocation for the log file is F:SQLLog, the parameter values would be changed as follows:
-dE:SQLDatamaster.mdf;-eC:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG;-lF:SQLLogmastlog.ldf
5. Stop the MSSQLSERVER service.
6. Physically move the files to the new location.
7. Restart the MSSQLSERVER service.
8. Verify the file change.
SELECT name, physical_name, state_desc
FROM sys.master_files
WHERE database_id = DB_ID('master');
********************************************************************************************
To move the Resource database, follow these steps.
1. Stop the MSSQLSERVER service if it is started.
2. Start the service in minimal mode. To do this, at the command prompt, enter <SQLPath>innsqlservr -c -f -T3608 where <SQLPath> is the path for the instance of ssNoVersion. For example, C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQL. This will start the instance of ssNoVersion for master-only recovery.
3. Run these queries. Change the FILENAME path to match the new location of the master database. Do not change the name of the database or the file names.
ALTER DATABASE mssqlsystemresource MODIFY FILE (NAME=data, FILENAME= 'new_path_of_mastermssqlsystemresource.mdf');
ALTER DATABASE mssqlsystemresource MODIFY FILE (NAME=log, FILENAME= 'new_path_of_mastermssqlsystemresource.ldf');
4. Make sure the Resource database is set to read-only by running this query:
ALTER DATABASE mssqlsystemresource SET READ_ONLY;
5. Physically move the files to the new location.
6. Restart the MSSQLSERVER service.
View 6 Replies
View Related
Apr 27, 2008
hi
i want to retrieve all columns for all tables (for all databases) by this system sp :
Code Snippetexec sp_msforeachtable 'exec sp_columns ''?''' but when i execute this script, sql server return number of empty result set, how to solve this problem ?
thanks.
View 8 Replies
View Related
Feb 5, 2001
How do you hide the default system databases so that they cannot be viewed? Also when it it time for me to access them how do I unhide the databases?
View 1 Replies
View Related
Mar 6, 2006
Hi
What are the pros and cons of putting the system databases in full recovery mode
I am asked by my manager to keep everything simple and uniform.We have all the user databases in Full recovery mode and he wants all the system databases as well to be full recovery mode.
I would like to get the points where in i can argue that, there is no point in having the system databases in full recovery mode.Unfortunately i dont see anything related to this in BOL or internet.
Plz help
Thanks
Sreenath
View 3 Replies
View Related
Apr 28, 2015
I have some questions :
1.Is it OK to shrink Master, model ? the transaction log for those databases are full .
2.Is it OK to set the Recovery model of Database MODEL as SIMPLE ? at the moment it is in FULL recovery model and the transaction log is Full too
View 1 Replies
View Related
Mar 18, 2008
Hello there,
I've been told that it is good practice to keep mdf and ldf files in another location... We have it in place for all our user databases, however mdf and ldf files for our system dbs are still at the same location. I was wondering what is the right way of splitting those should be?
View 5 Replies
View Related
Jun 14, 2007
Suddently System Databases Folder is not showing on Studio 9.0 for all the SQL servers instance. Do you know why ? Is there any option other than De-attach them?
View 4 Replies
View Related
Sep 24, 2004
Hi,
I was looking for system databases diagram(poster). If any one has this could you please point me to the URL where i can find it!!
Thanks in advance.
View 2 Replies
View Related
