Storage For Data And Logs
Apr 2, 2007
I am planning on doing database mirroring using two (2) servers for each instance and a SAN to store the data and log files for both the primary server and mirrored server. How do I arrange the SAN 4 Physical Drives?
My options are:
· 2 Raid 1 Mirrors giving 250 GB to each SQL engine €“ This though has both the transaction logs and data on the same physical drive even if we split it up further into logical drives
· A Raid 10 - The transaction logs and data can be on separate drives
· A Raid 5 using the 4 Drives. (How SQL will see these drives I€™m not sure when it€™s 2 SQL engines)
· Or I could get a 5th drive and have a mirror set for transaction logs and a RAID 5 configured for the data.
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Jul 6, 2006
Our DTS packages are saved as structured storage files. I can find instructions on accessing log files for locally saved DTS packages but not the kind we use.
Can someone help?
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Oct 27, 2014
How to implement distinct storage tiers on SQL Remote BLOB Storage (RBS)?
I want to use this SQL Feature to move files(images, videos, pdf files) from a database to a distinct database dedicated to RBS. Then I want to have several storage tiers, where objects will be saved and moved according access frequency. Old data will be arquived in cheap storage, but it must be always accessible if needed.
Description:
- 1st and main tier: new and frequently accessed objects stored in high performance storage;
- 2nd tier: automatically move older or less accessed objects to an inexpensive and different storage tier;
- in all cases, all objects must be accessible to all users, but accessing to archived objects(2nd tier) will be much slower;
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Mar 16, 2007
Hi,
i want to know how many data can storage into sql server compact edition. I've got a db into a pocket pc that has a table with about 2000 records inside; are they too records?
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Aug 29, 2005
hi all,
I have a field which name is Information
and it type is Varchar (8000),but some time data access than 8000 character, my client told me,make this field to store Unlimited data.
So how can i achive this task, i m using VS 2003 (ASP.NET with VB.NET) with SQL 2000.
Thanks
Shally
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Nov 22, 2006
Hi All,As per BOL, XML data type can store up 2 GB of data.My question is when a row is inserted in a table, for its xml column,2GB of space will be resered.In other words, how xml is internally stored. Is storage allocation issimilar to varchar(max) data type?Thanks in advance for everything.
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Dec 13, 2006
Hello, So, here's my dumb question; if I wanted to store some *.gif images in some database (SQL2K possibly 2K5) field and wanted to pull the information from that to display on the web form, am I actually storing the image in the database or am I storing the location of the image in the database?I ask this because I was under the impression that the location to the image file is what was being stored but another person was saying that it was the actual image. I guess I'm confused... Thanks in advance....
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Jun 2, 2001
re: [Windows 2000 SP1, SQL Server 7.0 SP2]
I am developing an online web-based address book for multiple users. There are STANDARD FIELDS and CUSTOM FIELDS.
Standard fields include: Name,Street,City,State,Zip.
Custom fields are those defined by a specific user. For example:
User-A Custom fields:
Interest Rate <real>
Loan Amount <currency>
Start date <date>
User-B Custom fields:
Blood type <char 3>
Date of birth <date>
Referred by <varchar 50>
Different users can have different custom fields in their address book. As you can see, while the standard fields for each user can be
stored in a single table. However, I have several methods by which I can store the CUSTOM fields.
------------------------------------------------
Method 1: Create 2 separate tables called CustomField and CustomValue:
CustomField has fields:
FieldID <int>
FieldName <varchar 25>
UserID <int>
CustomValue has fields:
ValueID <int>
Value <varchar 50>
FieldID <int>
------------------------------------------------
Method 2: Create a separate Field and multiple Value tables for each data type:
CustomField, CustomCharValue, CustomIntValue, CustomMoneyValue, etc...
CustomField has fields:
FieldID <int>
FieldName <varchar 25>
FieldType <smallint> (determines which TABLE, below, contains the data)
UserID <int>
CustomCharValue
CharValueID <int>
IntValue <Varchar 50>
FieldID <int>
CustomIntValue
IntValueID <int>
IntValue <int>
FieldID <int>
etc....etc...
The structures of those tables would be similar to Method 1, but the data would be segregated based on their data type.
--------------------------------------------------
I'm thinking that while Method 1 will be easier to implement, Method 2 may offer me better performance if coded correctly. I'm going
to assume that I'll have at least 1-5 million records to work with over the course of my first year and I will need the ability to sort
records based on values in the custom fields as well.
My first question is: Which method should I be considering and is there an alternative or hybrid that I should be considering?
My second question is: What statements should I use in my stored procedure that will enable me to retrieve a list of USERID, CustomFieldIDs and their values as one resulting table that I can query at will and with solid performance?
Gregory
email: sqlGuy@clubtel.com
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Aug 28, 2007
1> How is the data stored physically when there is now primary key as well as any index defined in the table......?
2> How is the data stored physically when there is just a primary key defined in one of the column of the table? No INDEX defined.
Thanks,
Rahul Jha
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Jan 2, 2014
I trying to fully understand when to use different data types in sql server.I want to know what Microdoft means when they say"Varchar is the actual length of the data entered plus 2 bytes".example e.g. what would the storage of varchar (50) be?
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Dec 16, 2007
Hello there,
Don't know if this is the right forum to be asking this, but I'll give it a try...
I'm relativelly a beginner in SQL Server and T-SQL in general. The problem I'm trying to solve is the following:
The big picture is that I have data coming from different data sources which I need to store on a database for later reference. Each data source might have a different set of measurements. For example, data source 1 might log Pressure and Humidity while data source 2 logs Pressure and Temperature. Once the data is present on the DB, the users can go ahead and retrieve data for a given [datasource/measurement/time interval] to generate reports or charts.
My implementation so far consists of two tables: series_info and series_data. series_info holds general information for a given series of measurements for a given data source (Pressure for data source 1, Pressure for data source 2, Humidity for data source 1 and Temperature for data source 2, in our example). Each series has a bigint index as primary key.
The table series_data contains all data relative to the series from series_info. Each piece of data has a bigint as a primary key, an associate time (which is always crescent) and a foreign key to the series it represents (in series_info).
Alright, everything is cool so far. However, whenever a user wants to retrieve data for given [data source/measurement/time interval], this takes very long, since all data is interposed in series_data and for every search it's necessary to find where the desired data actually lies.
One obvious solution for this would be to dynamically create a new table to hold the data for each series, but that would just make my database disorganized, since there would be thousands and thousands of tables.
Another thing that comes to my mind is to create a table with information of where lies the data for a given [data source / measurement] for given dates. So when the user requested data for a given [data source/measurement] between, say, january and february, we would first look at this intermediate table and find out that the data lies between indexes 1000 and 2000 on the series_data table, so the next SELECT command to series_data would already contain a restriction like WHERE index>=1000 and index<=2000. This should probably improve the speed of retrieval.
What do you guys (or girls) think? Maybe there's simply a classical solution for such a case.
Thanks in advance!
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Sep 5, 2007
Hello,
I am designing a program for work with SQL Server express 2005. But I don't know what is the data storage limit in this version of SQL Server.
What i want is storing about 30000 records in a table of the database.
Hasn't SQL Server express 2005 any problem or restrictions for storing the data?
Please advice in this regards,
Thank you,
Mona
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Oct 11, 2001
Dear Friends,
I am using SQL server 7 with ASP. I have two working environment means one is korean and second it english.
- one Korean OS server have SQL server 7.0 and it is my database server
- second Korean OS server is only webserver
- English OS is win2k and it is only Web server.
1) When i used both Korean server as my webserver + database server then there is no problem to add Korean Data to SQL server On korean OS.
2) But when I try to user English OS server as my webserver and Korean Os server as my database server then I am not able to store Korean Data in Database server insted of it stored some mis/junk/acssi characters in database.
-- I allready try with Korean version of MDAC of English os
-- I also try with OEM feature in SQL server client network utility
-- When I am use CODEPAGE in my .ASP page then data storage work fine .. but at the time of getting it back there is problem.
If u need any more information about problem then let me know.
So please help me in this regards.
Thanx in advance
Anis Vora
Partner
Global SoftWeb Solutions
www.globalsoftweb.com
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Jun 2, 2001
I am developing an online web-based address book for multiple users. There are STANDARD FIELDS and CUSTOM FIELDS.
Standard fields include: Name,Street,City,State,Zip.
Custom fields are those defined by a specific user. For example:
User-A Custom fields:
Interest Rate <real>
Loan Amount <currency>
Start date <date>
User-B Custom fields:
Blood type <char 3>
Date of birth <date>
Referred by <varchar 50>
Different users can have different custom fields in their address book. As you can see, while the standard fields for each user can be
stored in a single table. However, I have several methods by which I can store the CUSTOM fields.
------------------------------------------------
Method 1: Create 2 separate tables called CustomField and CustomValue:
CustomField has fields:
FieldID <int>
FieldName <varchar 25>
UserID <int>
CustomValue has fields:
ValueID <int>
Value <varchar 50>
FieldID <int>
------------------------------------------------
Method 2: Create a separate Field and multiple Value tables for each data type:
CustomField, CustomCharValue, CustomIntValue, CustomMoneyValue, etc...
CustomField has fields:
FieldID <int>
FieldName <varchar 25>
FieldType <smallint> (determines which TABLE, below, contains the data)
UserID <int>
CustomCharValue
CharValueID <int>
IntValue <Varchar 50>
FieldID <int>
CustomIntValue
IntValueID <int>
IntValue <int>
FieldID <int>
etc....etc...
The structures of those tables would be similar to Method 1, but the data would be segregated based on their data type.
--------------------------------------------------
I'm thinking that while Method 1 will be easier to implement, Method 2 may offer me better performance if coded correctly. I'm going
to assume that I'll have at least 1-5 million records to work with over the course of my first year and I will need the ability to sort
records based on values in the custom fields as well.
My first question is: Which method should I be considering and is there an alternative or hybrid that I should be considering?
My second question is: What statements should I use in my stored procedure that will enable me to
retrieve a list of USERID, CustomFieldIDs and their values as one resulting table that I can query at will and with solid performance?
Gregory
email: sqlGuy@clubtel.com
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Jan 14, 2008
I am a Windows developer for the IBM Tivoli Storage Manager Server (TSMS) product.
Our product installation is built with InstallShield and uses the Windows Installer.
On a new installation of Windows 2003 x64 Storage Server R2, at a customer's site, the TSMS product fails to install.
The install of the OS has version 3.01.400.3959 of the Windows Installer and I see no newer version that installs.
Part of our product is 32 bit (console) and another part is x64 (server).
When installing I can see that the install's default is being redirected/reset to C:Program Files (x86)TivoliTSM after it is explicitly set by a custom action to ..Program Files.. . I further observe that our custom actions to write 64 bit registry entries are being refused.
REGSAM samMask = KEY_ALL_ACCESS;
if ( regIsWow64Process () ) samMask = samMask | KEY_WOW64_64KEY;
lStatus = RegCreateKeyEx( hLocalConnectKeyRoot,
szSubkey,
0L,
NULL,
REG_OPTION_NON_VOLATILE,
samMask,
NULL,
hKey,
&dw ) ;
The above fails to create the key.
We have tried four versions of our TSMS spanning many changes but the install acts the same.
This does not happen on any other Windows OS we test on but we do not test on Windows 2003 Storage Server R2 being that it is an OEM product. We did test on Windows server 2003 R2 x64 and do not see this problem.
Do you have any suggestions on how to tackle this problem?
I have full installation traces but can only see that the registry work is being refused. I can't see why.
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Mar 13, 2008
Ok so facebook groups have 100,000's of members. Members can be part of an unlimited number of groups, and a group can have an unlimited number of members.
Comma Deliniated String seems absurd. Many-2-Many Database relationship seems like it won't scale well t the 10's of thousands and 100's of thousands of members (especially if you have 1000-5000 groups). A table for each group would work but thats a bit over the top in my opinion. XML file doesn't seem to be any better than the above options.
I am no database guru, but I can't figure out a scalable method of doing this, be it with or without a database. I need something that can support 10 groups that have 20 members each OR 1000 groups with 100,000 members each.
Any help, suggestions, or kicked in the right direction would be most appreciated.
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Aug 22, 2007
I need to generate a report of DTS package results, i. e. succeed, fail, error, etc. What tables is information of this type stored for SQL 2000?
winniemax
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Aug 6, 2015
OS: Windows 2012 Enterprise
SQL Server: 2012 Enterprise
I was wondering if there is any way all SQL Server error log entries could be automatically written to Windows Event Log.Â
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Feb 12, 2007
Hi,
In my case I have to log the errors raised by any task in a package to either windows event log, text file or SQL server. Also I need to send an email notifications to a group of people telling them about the error.
Now can I use SSIS package logging for logging the errors into the required destinations. I mean right clicking on the package and selecting Logging, then adding the required log providers and enabling the events for logging into those. I think I have to upfront select the log providers to log the error, I will not have the liberty to log the error to the destination, the name of which is passed as a variable to the package. This is okay with me though.
Now what will a custom log provider help me to do in this case. Also can I somehow configure my package to call the send mail task everytime an error is raised.
Also, one more option can be developing a package that only does the error handling. It will take in the paramters or the error codes and descriptions, the destination to write to and a flag to send mail or not for that particular type of error.
What do you think? Kindly advise.
Thanks in advance for your help and time.
Regards,
$wapnil
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Apr 23, 2015
I am using sql server 2008 r2 on my end. I have created a database named testDB. I have a lot of tables with some log tables in this. some tables have contain lack of records in log table.
So my purpose is that I want to fix the table size of those tables(log tables) and want to move records in other database table placed on another location. So my database has no problem.
is there any way to make such above steps which I want for my database?
Is there already built any such functionality in sql server?
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Aug 14, 2006
I'm getting ready to install SQL Server 2005 Enterprise for the first time and I have a question about the directory location of the log files and the data files. I have 3 RAID arrays on my server, 1 for the OS, 1 for SQL Logs, and 1 for SQL Data.
Here's my issue. I want to install the logs on the Log array and the SQL data on the SQL data array, however, during the installation I can't find anything that allows me to select certain directories!
Am I missing something somewhere?
Thanks
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Nov 7, 2002
There are so many to choose from, which ones are the most important to monitor?
Also if you have your data files and trans logs set to grow automaticlly and would like to change this to a fixed number is there a way to determine how large you should set them at? Thanks in advance.
:confused:
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Jul 16, 2015
Out of using stored procedure, reports and all this staff, I want to know the possible way to make sure that the data inside my Secondary Server Read only database are same as data in my primary server database.
So what is the simple way to do this check?
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Aug 28, 2001
When looking at SQL Server error logs, I noticed that the current error
log had grown to 1MB whereas most of the files are only a few KB.
QUESTION 1: Can I set the max size for an error log file? If so, how?
QUESTION 2: If not, is there a workaround?
Thanks
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Dec 23, 2003
Hello Everyone and thanks for your help in advance. I am developing a document storage application for an intranet that will store various Word, Excel, and PDF documents. Most of the examples I see utilize SQL Server and an image field rather than the FileSystem Object to store documents. My concern with this method is that some of the documents may be several hundred pages (not exactly sure of the actual file size yet, but they must be fairly large). My question is, where does the use of SQL Server become impractical for this type of application? Any insight would be greatly appreciated. Thanks.
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Feb 20, 2002
Hello,
Does anyone know the upper limit of data size that one SQL 2K table can hold. I've seen 50GB tables in some warehousing servers, but what is the true limit. Soes the limit vary with the SQL2k version?
Thanks!
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Jun 7, 2004
I have an MSDE installation on Windows server 2003. It looks like the C: drive is taking the brunt of the data when I load up the database. I would like to specify a different drive for data...Is there a way to do this?
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Feb 21, 2005
How should i know size of the table in the DB. suppose my DB has 5 tables and the size of the DB is 500 MB. How can I know size of the indivdual table.
Thanks.
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Feb 28, 2006
greetings!!!
Help me please!
I'm migrating a images DB of a system
I know the structure of the data tables and all type of data in it
How can I learn about the STORAGE of IMAGES? In sql Server
Where can I found information about that?
I need to know something about that topic
usually, whats the way for image’s storage ?
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May 30, 2006
Hi guys.
I am currently developing a system thats stores exchange stats in a db. Since our customers are companies with 20 employees up to 5 000 there a a big difference in the volume of data needed to be stored.
We currently thinking of supplying a SQL Server Express DB to the small customers and suggest a SQL Server to the bigger.
But since I would like to use the same structure for both types of customers I wonder how should i design the storeage.
Since the could be from 500 records a day up to 20 000. There are quite simple recordes with only simple datatypes. about 15 fields with no more than 10 chars each, mostly 2.
Should i separate the data in diffrent tables for a week or a day etc.
Since I am only going to filter data on 1 or 2 fields the data will be easly indexed.
The reports generated will almost always only use 1-3 months of data, but historical reports have to be possible.
My question are ofcourse:
Whats the best solution for me?
Thanks in advance:)
/Johan Wendelstam
Sweden
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Jun 2, 2006
In MSQL Server 2000 how can I expand or use multiple transaction logs because the hard disk i am using windows dont have more than 4 GB free and the query i want to run overcomes this space.
I have another one HDD with 20-30 GB free space and i want to use this disk so to use a second transaction log or move this log to this disk.
Can this be happen and how ????
Thank you in advance
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Feb 23, 2007
additional to data, what other type of information can be store in sql databases, i need to store pictures and mp3's that can be done, if not do you know what storage can be used for this purpose?
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Jun 19, 2007
I have recently designed and built my first database using SQL server 2005 express. I have included an image (BLOB) column in one of the database tables. This is a bad idea according to some experts, and some say it is OK!
I am currently carrying out a trial with just 3 pictures via Visual Basic 2005 express forms, and there is no problem so far as the images are displayed for each record. But I anticipate between 300 - 1000 images for the table, and this could pose real problems for SQL server 2005 express and Visual Basic 2005 express, I guess.
I have just been reading that the cost of storing large images in the database is too high! I have also read it's better to store images (BLOB) into the file system because it is cheaper to store them no matter how many there are.
But the question is how I can reference an image in this path: C:PictureProductGrocery 0052745.jpg in the database table, so that when I select a record Visual Basic 2005 forms the image is displayed accordingly, similar as when stored directly in the database table? Your help very much appreciated.
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