Format Database Disk With 64K Blocks NTFS
Jul 14, 2004Hi:
Somebody tellme that with a format of my database disk with 64K blocks NTFS, i can have better performance, is that true ? there is any problem in SQL with this block size ?
Hi:
Somebody tellme that with a format of my database disk with 64K blocks NTFS, i can have better performance, is that true ? there is any problem in SQL with this block size ?
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!
I wanted to set up a mechanism that would transfer blocks of records (a few dozen to in rare cases a few thousand), with slight modification, from one database to another. It's a sort of custom partial archiving process that would be triggered from a web-based admin application in plain old ASP (not .net alas). Records in the target db would be identical except:
-- the primary key in the source table, an identity field, would be just an integer in the target table
-- the target table has an extra field, an integer batch ID supplied by the web application that triggers the process
It's a simple, if not efficient matter to do it within the web application: query the source table, suck the records into memory, and insert them one by one into the target db. This will be an infrequent process which can be done at off-hours, so a bit of inefficiency is not the end of the world. But I wondered if there is a more sensible, orthodox approach:
-- Could this process be done, and done efficiently, as a stored procedure with the batch ID passed as a parameter?
-- Is there any way to do a bulk insert from a recordset or array in memory using plain ASP, ADO and SQL? And if so, is that better than inserting records one by one?
I realize that the ASP.NET tableadapter and dataset features might provide a good solution, but in the short run I can't rewrite the whole application. Advice on the best general approach from an ASP-ADO platform would be appreciated, and I will try to figure out the details.
Hi,We use a database with about 40 related tables. Some tables contain asmuch as 30.000 records. We use Access97 as an interface to thedatabase. Now recently we have the problem that when we want to inserta row in one specific table (alwasy the same) the database makesblocks.Details:- about 10% of the data was inserted using copying from Excel, beforethis action there was no problem, though there is no evidence thatthis causes the problem.- inserting rows via the Query Analyzer works fine, via Access causestrouble.- the tempdb lofile has grown to 48Mb.Has anyone ideas about what is going on and what I can do to solve theproblem?TAV,Jan Willems
View 1 Replies View RelatedHi,
Permissions were granted to sql users based on their groups in the domain - that is groups were added as sql users rather than the login names.
Is there any way I can determine the group a user belongs on login to sql server?. I need to develop an interface that enables relevant menu to relevant groups.
Thanks,
Victor
Hi,
I have microsoft sql server installed on fat32 partition and I want to convert it to ntfs.
Should I expect any problems with my DB while/after doing that ?
I have been told by a local PC club technician that 98SE cannot read NTFSdrives in a network. Is this true? TIA, Jim.
View 2 Replies View RelatedHi, My server went dead(problems with the hard disk), but I have a copy of the whole sql server directory including the database in a external hard disk. I have a new server now and I would like to copy this database (with the reports from reporting services too) from the external hard disk to my new server. can anybody help me please? Thanks.
Note : I have a plain copy of all the sql server directory with all the files including the database not a SQLServer backup done with the wizards.
I have FAT32 system on my machine and SQL Server 2005 Express installed on it.
Is there will be any problem in SQL Server 2005 Express (in terms of server machine and client machine) if I change my FAT system from FAT32 to NTFS ?
Thanks
Our current project involved into managing NTFS hierarchical folders structured by multi-level customers and associated projects for them. Essentially each folder level represents one level of customer hierarchy or project root. Both have different subfolders and user access rights for them based on generic XML templates. The folders resided on file servers across the country and should be accessible in ordinary way NTFS file shares are allowing. LAN/Intranet MS AD Win2003 / SQL2005 environment.
The folder management system basically have to keep the folder structure in tact with changes in underlying managing application logic. That involves such operations as creating a new folder with subfolders, copying a folder with its content into another folder branch (which may be on the same or another server and place), deleting a folder/content, renaming a folder, applying NTFS access rights to folders and subfolders for users according generic templates. As all these actions are unreliable and some tasks may take hours to complete, SSB approach seems to be the viable solution. Some tasks involved have to be done within 10 minutes, others (are prolonged) have to be scheduled for overdnight run. Windows service like EA sample may be used to start the actual NTFS related tasks. Content transfer involves WMI remoting with robocopy tool on target machine (for better network utilization), other related tasks make use of WMI APIs and probably do direct (i.e. synchronous) calls to the remote target file server.
At this stage, making atomary executable modules that do just one functionally isolated task like DirCopy, DirCreator, DirRename, DirDelete, DirUserAccess seems like somewhat logical choice.
The questions starting to arise from SSB queues planning to adoption of ExternalActivator sample to run these atomic executables. The problem is that if SSB messages contain atomic tasks for these executables, they needed to be syncronized in two ways - by execution precedence (create or copy dir first, then apply users' access rights) and transactionally (only when all related tasks succeed, the appropriate feedback action and event log writing can be taken.
I can imagine two implementation scenarios below.
Case A. Create common queue for directory creating, content transfer and access rights.
In that case ExternalActivator has to be either extended & re-designed or it has to activate another Activator-Coordinator (middleway) executable, that would actually read the queue and, based upon the message type, run the appropriate atomary executable. In that scenario, the queue processing would be stalled because if the previous task was content transfer and lasts, say access rights to them can't be started before the transfer task has been finished OK. That in turn probably will require running multiple instances of the atomary tasks and using conversation groups, wouldn't it? What would be the most reliable and simple way to achive that?
Case B. Dedicated queues for each atomary executable modules.
Neither EA changes nor extra Activator-Coordinator middleway executable required. But because the atomary task-oriented queues are not syncronized with each other the queues internal conversation groups wouldn't help much... That means if a directory not yet exists, userRights module have to wait. But, what if we are transferring directories from path X to Y, based on what the userRights module knows to wait? With zero asynchronous design experience I'm lost here...
Hope I described the app domain understandably, thanks for hints leading to the working solution!
If I return the Average, Minimum, and Maximum values for the counter Physical Disk: Avg. Disk Queue Length, and those values are 10, 0, 87 respectively, which value do I use to compute the Avg. Disk Queue Length for a 4 disk array(RAID 10): Average, Minimum, or Maximum? The disk(lun) is on a SAN.
-- Initialize Control Mechanism
DECLARE@Drive TINYINT,
@SQL VARCHAR(100)
SET@Drive = 97
-- Setup Staging Area
DECLARE@Drives TABLE
(
Drive CHAR(1),
Info VARCHAR(80)
)
WHILE @Drive <= 122
BEGIN
SET@SQL = 'EXEC XP_CMDSHELL ''fsutil volume diskfree ' + CHAR(@Drive) + ':'''
INSERT@Drives
(
Info
)
EXEC(@SQL)
UPDATE@Drives
SETDrive = CHAR(@Drive)
WHEREDrive IS NULL
SET@Drive = @Drive + 1
END
-- Show the expected output
SELECTDrive,
SUM(CASE WHEN Info LIKE 'Total # of bytes : %' THEN CAST(REPLACE(SUBSTRING(Info, 32, 48), CHAR(13), '') AS BIGINT) ELSE CAST(0 AS BIGINT) END) AS TotalBytes,
SUM(CASE WHEN Info LIKE 'Total # of free bytes : %' THEN CAST(REPLACE(SUBSTRING(Info, 32, 48), CHAR(13), '') AS BIGINT) ELSE CAST(0 AS BIGINT) END) AS FreeBytes,
SUM(CASE WHEN Info LIKE 'Total # of avail free bytes : %' THEN CAST(REPLACE(SUBSTRING(Info, 32, 48), CHAR(13), '') AS BIGINT) ELSE CAST(0 AS BIGINT) END) AS AvailFreeBytes
FROM(
SELECTDrive,
Info
FROM@Drives
WHEREInfo LIKE 'Total # of %'
) AS d
GROUP BYDrive
ORDER BYDrive
E 12°55'05.25"
N 56°04'39.16"
Hello,
I am trying to setup a test cluster and am having an issue. When I try to create the resource of a physical disk it takes both the drive e: and drive q: and doesn't seperate them into two physical disks as resources. This means when I try to associate the quorum disk it links the to physcial disk resource of drive e and q. Then when I try to install SQL2k5 I get the warning about installing SQL on the quorum disk. Am I missing something? Is there a way to seperate e and q onto two physical disk resources so I can specifically associate the quorum to q and the sql to e or should I be setting the quorum disk to a majority node set? Thanks in advance.
John
If you were to do a fresh install it would set permissions on the disk so everything just works.
Now when changing the service account (e.g. to a domain user) use the configuration manager, does it do the same magic (possibly sans if the database data/log files are on another disk)? Or do you need to trawl through the dozens of folders and assign rights manually?
Hello,
this is my configuration :
1) 3 disks in RAID5 that hold the SQL data
2) 1 disk in RAID0 that holds the only paging file.
What will happen to the SQL data (DB) when the disk that holds the paging file crashes?
Kindest regards,
Luc.
I have my little MSDE on my computer. I can add and delete stuff from it through Web Matrix. My question is, where exactly is the database stored in Windows?? Also, say I wanted to copy it to a disk so I could show it to someone else, what file(s) would I need to copy?
The reason why I ask is because I have been doing a website as a project and we have to hand in all files on a disk. Getting all the .aspx & .ascx and the .config file is easy, but the database & stored procedures is proving tricky to find.
Thanks
Hi All,
One of the drives that stores the database file is close to running out of space. The chance of me getting more space added to this drive any time soon are really low. What are other options I have?
Thanks.
I want to move 2 databases to another physical disk. They are both single file databases. It looks like a fairly straigtforward attach and detach procedure, but I have a couple of questions:
The log files (.ldf) currently reside on a separate physical disk from the data files, if I attach and reattach the data files will the logs remain where they are by default or do I have to re specify there location?
Is there any advantage to running the update statistics portion of the sp_detach_db?
Hi All,
One of the drives that stores the database file is close to running out of space. The chance of me getting more space added to this drive any time soon are really low. What are other options I have?
Thanks.
We are going to implement either a replicated database or use log shipping to another database to support our reporting needs. Basically we are moving reporting over data off our transactional database.
With this in mind, I have several questions:
Are there any special configurations in terms of disks for a database in this situation?What are the recommended raid types?
Also, we currently store our data in one filegroup and indexes in another so obviously I'll want those on 2 separate physical disks other than the C:. What about the log files? Do I care where they go (on C: or another physical drive separate from C:, data filegroup drive and index filegroup drive)?
Thanks!
Hi there
It is obvious that putting multiple database files on different physical disk is better for performance, but what about splitting the data on different files on the same disk?
I have got a database of about 20GB and only a single data file. will I benefit from splitting this file to multiple files on the same disk?
Hello everybody
Had some problems yesterday with a full transaction log. Was able to solve it by following microsofts knowledge base article n° 272318.
However, today I'm trying to create a new DB using the enterprise manager and get this error:
d:databasesHERCULES_1_Data.MDF: Operating system error 112(Es steht nicht genug Speicherplatz auf dem Datenträger zur Verfügung.) encountered.
The free disk space is > 60GB. That's by far enough... I only need 1-2 GB.
Any ideas what's wrong here?
Thanks anyone in advance for some guideance.
Renaud
We have repartioned a server (create a larger C-drive/system partition). It's about Windows Server 2003. Before repartioning SP2 was not installed. After repartioning checkdisk started automatically (as normal after using a disk partitioning tool). Checkdisk did some interesting and bad things with my files: changing file permissions and make some files corrupt, how I don't know. Something to do with SP2 not installed and the NTFS filesystem. After this action I have a corrupted SQL database. Tried to repair with the DBCC CHECKDB repair commands, but fail. Error in event viewer:
Error: 823, Severity: 24, State: 2
I/O error (bad page ID) detected during read at offset 0x0000003bdc4000 in file 'D:program filesMicrosoft SQL ServerMSSQLData352.MDF'.
I also still have NTFS errors in my event viewer. What to do? How can I repair the database? Only running checkdisk again? (and will this work?) Than all file security will be reset to Administrators.
Other ways to rebuild my database? (tools???) Unfortunally there isn't a good backup available due to a lack of good configuration of the backup software.
I execute the following SQL, and return 3 records, I want to know how many disk space the 3 records use, how can I do? thanks! select * from myTable where username='Paul'
View 6 Replies View Relatedi have create sql cluster and i need to add  the Database disk as dependencies of cluster resource Server Name and i am not able to see the disk.
View 3 Replies View RelatedHi all,
Ok here goes,
I have a three tier system using SQL server 2000, we are currently experiencing IO bottle necks on our SCSI Raid 10 array, which holds the Data and the logs in separate partitions.
So my options as I understand it are:
Get Enterprise edition
or
Get another physical raid 10 array and separate the logs and data i.e. data on one array and logs on the other array.
I would like to try the latter but I am totally unsure how much difference this will make or whether it will make any difference at all.
Does anyone know how much performance increase I will get from using two arrays as opposed to one?
Any other advice on this scenario would be greatly appreciated.
Thanks
Can we backup a DB from SQL Server 2012 (Ent. edition) two node cluster to a local disk ?. Is it possible ?
View 7 Replies View RelatedI am having a problem backing up my database and TLog files due to alack of local diskspace. The db file is about 30GB and the TLog isabout 20GB each on a different hard disk. Each disk doesn't haveenough available space to accomadate a backup. I also can't shrink thefiles because part of that procedure would require a backup.Question: Can I use a redirected drive for the backup media? Is therea way to trick SQL into allowing this? If the answer is no, doesanyone have a suggestion as to want I should do? I am in the processof requesting more disk space,but that could take a while.Thanks,
View 3 Replies View RelatedDisk space is increasing at an alarming rate (about 500MB a day). Shrink of database seems to have no effect. It is a queueing table so data is inserted then a few minutes later it gets processed & deleted.
Here is info about the problem:
sp_spaceused ImporterModuleQueue
name rows reserved data index_size unused
------------------- ----------- ------------------ ------------------ ------------------ ------------------
ImporterModuleQueue 30 9469432 KB 9468280 KB 32 KB 1120 KB
This is about 9 GB
select sum(len(QueueContent)) from ImporterModuleQueue
49744918
select sum(len(QueueErrors)) from ImporterModuleQueue
43529
This is about 50 Mb
CREATE TABLE [dbo].[ImporterModuleQueue](
[ImporterModuleQueueId] [int] IDENTITY(1,1) NOT NULL,
[ImporterModuleId] [int] NOT NULL,
[StartedDateTime] [datetime] NULL,
[FinishedDateTime] [datetime] NULL,
[QueueContent] [varchar](max) NOT NULL,
[CreatedDateTime] [datetime] NOT NULL,
[QueueErrors] [varchar](max) NULL,
[QueueSourceId] [int] NOT NULL,
[QueueStatusId] [int] NOT NULL CONSTRAINT [DF_ImporterModuleQueue_IsProcessed] DEFAULT ((0)),
CONSTRAINT [PK_ImporterProcessQueue] PRIMARY KEY NONCLUSTERED
(
[ImporterModuleQueueId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
--
dbcc opentran
No active open transactions.
--
DBCC SHOWCONTIG scanning 'ImporterModuleQueue' table...
Table: 'ImporterModuleQueue' (2030070418); index ID: 0, database ID: 5
TABLE level scan performed.
- Pages Scanned................................: 14
- Extents Scanned..............................: 10
- Extent Switches..............................: 9
- Avg. Pages per Extent........................: 1.4
- Scan Density [Best Count:Actual Count].......: 20.00% [2:10]
- Extent Scan Fragmentation ...................: 80.00%
- Avg. Bytes Free per Page.....................: 5714.1
- Avg. Page Density (full).....................: 29.40%
Hello,I am trying to recover a SQL Server 7 database from another hard diskdrive that has a corrupted Windows 2000 Advanced Server installation. Iam not able to repair the corrupted Windows 2000 Advanced Serverinstallation but the file system is intact. I have installed a new copyof SQL Server 7 onto a new hard disk and have used the sp_attach_dbsystem stored procedure to attach the database from the old hard driveinto the new installation of SQL Server 7 on the new hard drive. Thedatabase shows up in the Enterprise Manager View and all the data andstructure are there, but when I try to run a Web site that uses ODBCconnections to the database I get the following error:ODBC Error Code = 08001 (Unable to connect to data source)[Microsoft][ODBC SQL Server Driver][Named Pipes]Specified SQL servernot found.I have double-checked that all the NTFS permissions, ODBC DSNs, and WebServer settings are correct and when I run the SQL Server ODBC drivertest at the completion of each ODBC DSN setup, it is successfull.1) Why am I getting this ODBC error?2) What steps have I missed in the recovery process?3) If I have done something wrong recovering my database, can I stillrecover it since I still have: a) The old master database file and logfile; b) The old database (non-master) file and log file; c)A backed-up(Enterprise Manager -> Right Click A Database -> All Tasks -> BackupDatabase) copy of the old database (non-master) file; ?My System Specifications:-Windows 2000 Advanced Server-SQL Server 7-IIS 5.0-Cold Fusion Server 4.5 Professional Full EditionThanks For Your Time,Nathan
View 2 Replies View RelatedI have started getting this error since a week now when I try to schedule a report or change a schedule of a report. An error occurred within the report server database. This may be due to a connection failure, timeout or low disk condition within the database. (rsReportServerDatabaseError) Get Online support For more information about this error navigate to the report server on the local server machine, or enable remote errors..
We have SQL Server 2008 installed along with SSRS running on the server. I have never seen this happening before for almost a year now but suddenly it appeared.  Along with this, report subscription is also messed up and some report are not been emailed as they have a error like..Failure sending mail: An error occurred within the report server database. This may be due to a connection failure, timeout or low disk condition within the database.Mail will not be resent.Â
I know blocks and Deadlocks are different but how related are they? Seems like when I get reports of deadlocks I always have blocks and the blocks grow as time passes.
View 2 Replies View RelatedHi, Everyone
Can anyone tell me how to find who blocks the table or record, because the Lock Blocks is extremly high in the performance monitor.
Regards,