PERC RAID Controller Settings?
Jul 20, 2005
We have a Dell 6450 quad 1.6MHz, 4GB RAM running SQL 2000 on Win 2000
server with 2 PERC3/QC cards. Server has 4 internal drives configured
as two raid-1 drives (OS and SQL logs). Server has 7 more drives in
external drive rack for RAID-5 SQL data. We did not have a UPS
available for server at installation so I set cache as write-through,
even though should not matter since it writes back at restart right?.
I am planning on switching back to write-back cache and was wondering
how do users run this setting and any problms/caveats? How do I tell
if the PERC cards are mirrored? Or does one PERC card run 4 internal
drives and other card run raid5? How much performance boost do you
get from using write-back? What are the recommended settings for read
cache (readahead, adaptive etc)? Can you post some reference web
sites? Thanks P
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Feb 12, 2006
I heard that is said that MSQ SQL 2000 doesn't work correctly with raid (for example raid 5)
I have my application in 2 companies. The first one with not a raid controller (even though the computer has a raid controller) executes a backup when no users are online in more than 8 minuter and the file of the database backup is 3,5 GB. The memory of the computer is 2GB.
In the other company when more than 20 users work in the database with a raid controller the backup is occured in 2,6 minutes and the database backup file is more than 6 GB. The memory of this computer is 4 GB.
What is your opinion?
Is this rumor true?
Do you suggest I should apply raid 5 to the first server?
Regards,
Manolis
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Mar 6, 2008
I was informed (by Microsoft) that for all SQL Servers prior 2008 recommended (or must) stripe size is 64k
Does anyone knows full set of settings that must be applied when
setting up raid 5 for sql server box
Thanks
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Apr 4, 2007
I am configuring a new database server, without SAN access, and want to know what is the best practice for SCSI RAID configuration. Do most folks prefer RAID 5 or RAID 10 configurations where their databases will reside?
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Mar 27, 2008
I've always heard that RAID 5 (or better, RAID 10) is preferred for the actual database (mdf), but RAID 1 for logging.
If I have a dedicated physical volume for each, what's the performance hit for selecting RAID 1 for the MDF files? 3%, 20%, 200%?
Doing so (all RAID1) will allow me to have a separate physical volume for the TEMP database - that is heavily used by my app.
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May 1, 2006
RAID 5 beats RAID 10Can I get some feedback on these results? We were having some seriousIO issues according to PerfMon so I really pushed for RAID 10. Theresults are not what I expected.I have 2 identical servers.Hardware:PowerEdge 28502 dual core dual core Xeon 2800 MHz4GB RAMController Cards: Perc4/DC (2 arrays), Perc4e/Di (1 array)PowerVault 220SEach Array consisted of 6-300 GB drives.Server 1 = Raid 103, 6-disk arraysServer 2 = Raid 5 (~838 GB each)3, 6-disk arrays (~1360 GB each)TestWinner% FasterSQL Server - UpdateRAID 513Heavy ETLRAID 516SQLIO - Rand WriteRAID 1040SQLIO - Rand ReadRAID 1030SQLIO - Seq WriteRAID 515SQLIO - Seq ReadRAID 5MixedDisktt - Seq WriteRAID 518Disktt - Seq ReadRAID 52000Disktt - Rand ReadRAID 562Pass Mark - mixedRAID 10VariesPass Mark -Simulate SQL ServerRAID 51%I have much more detail than this if anyone is interested.
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Apr 20, 2007
Novice wants to learn why it is not recommended to install sql 2005 express on to a 2003 domain controller. I have installed sql 2005 express on a 2003 domain controller and when I tried to run management studio it failed to run. there seems to be no problem with the engine, oh I also installed books online I wonder... can there be an issue with the books online and management studio I remember there were problems in the beta era. Now I am wondering if it's a good idea at all I feel like I have been left at train station with all my luggage, I have all this equipment... work stations, a server, printers and no resolution to my problem. most of all I want to learn why I shouldn't install sql on a domain controller... can someone please explain in detail.
dbarselow
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Apr 20, 2007
Arnie I have sql express, 2003 R2 as a domain controller, a laptop I use as a remote connection to the server. What I want to accomplish is to connect to a website using the server as a branch headquarters type of connections. I was told to look into using sharepoint services. I noticed my server has this service. Can't I use sql in this type of senario. I want to be able to have content uploaded to the web site by verious employees then have that content scanned and cleaned if needed and made available for my server. And from there I would have what I need to continue my publishing the content.
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Jul 8, 2002
Hello,
I have been told by DBA's that you should never put SQL Server on Domain controller.
Can any one give me good (VALID) reason why I should not do that?
Thanks for you help in advance ALL
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Jan 25, 2008
Hi
I have an installation of Cognos Controller 8.2. The installation of application seems to be all 100%.I can create blank SQL database use the application to upgrade the tables but as soon as I populate the database with data and try to optimise from the application there is an issue. It gives me the error below:
Standard error
Number 5
Source: Frango dircect.Optimise.DeleteTempFox#controllerProxyClie nt
Description: System.Web.Services.Protocols.SoapException
server was unable to process request-->System.Security.Security Exception: Permission Denied
I have checked permissions on the database and all is fine "fastnet" is added as the DB owner and the SQL instance is 100%, Can anyone please shed some light on this.
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May 8, 2004
I have a problem with OLAP running on a Server that is domain controller, the problems is that after the Server was promoted to Domain controller, all users are allowed to see all databases and cubes, I did the same test on another server and found same problem after upgrading to domain controller.
I already tried demoting the server as domain controller to member server, but did not work.
Anyone knows how to revert this thanks,
Ronnet :mad:
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Nov 8, 2006
One last question ( for today)...
The recomindation to not install SQL express on a Domain Controller. Is there a specific technical reason or is it just the general don't use the DC has a Terminal server / sql server / application server line of thought?
The reason I ask is we have been using SQL 2000 on a W2k3 server configured as a DC as well as for Terminal Services. (yes I am aware of the security risks) but in a small network with 5 or less ft clients and 30 thin, I can't justify a seperate DC and App server.
Kay
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May 19, 2008
I have 2 questions, the first one is more of a DC/AD issue, but I don't think there is a forum for that. But that question leads directly into my other question which involves SQL Server. I hope someone can give me some feedback.
We have a small network of about 12 users, and we are running SBS 2003 as our DC and Exchange server. We are going to start doing a lot of heavy lifting with data so we got another box to run Server 2003 Standard and SQL Server 2005 Standard. But now it's been suggested that we also install a second DC on the new SQL box. I am opposed because a DC should be on it's own box, and the SQL Server will need all of the available resources. I don't really think we need a second domain controller anyway, considering we have such a small office and good backups.
So my questions are: does anyone have an opinion as to whether or not we really need a second domain controller in our 12 person Small Business Server environment. I'm thinking there wouldn't be a whole lot of benefit. We certainly don't need it to share the load, and a SBS dc cannot give up it's FSMO roles so i don't see how a second dc would be able to properly serve as a failover should the first one go down.
My second question is: what kind of impact on the SQL Server would there be by installing a DC? I know it's not Microsoft recommended to have them on the same box.
Thanks,
-Rick
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Feb 14, 2006
I have a guy who wants me to move his databases to an external drive. Hardware is my major weakness and I usually think I am McGyver when I can swap out a RAM board in my home PC. Whenever guys in the office start talking hardware, I go hide in the bathroom.
I know I have read that this is a very bad idea in some book and a few message board threads. This guy is going to use SCSI and it is going to be attached to the same controller as his other disks. I know he should have a battery backup for the drive especially if it employs write caching and that it should be formatted to NTFS and not FAT32.
I googled echnettedBOLedMSDNed this for 2 hours yesterday because I remember reading something about disc controllers and external drives and SQL Server being a recipe for disaster but I could not find anything to back me up.
Any words of wisdom or advice?
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Dec 15, 2006
I want to install SQL Express 2K5 on a lightly used second Windows 2003 SP1 DC. I know about the warning not to do this type of install. However, the group is small and their budget does not allow for another server just for one application. With that being said, the error message I keep getting is "can't create local groups......" (I know that you do not have local groups with AD). So, is there a work around to this issue or can someone point me in the right direction as how to install on a domain controller? Thanks in advance for your time!!!
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Apr 18, 2007
Hello everyone, I have searched the forum regarding this topic and have found numerous good threads about installing SQL Express on a DC. My question is, I am assuming that if installing SQL Express on a Domain Controller is not recommended, that installing the MSDE 2000 on a Domain Controller is not recommended either?
Thanks in advance to all replies!
Tim
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Jan 15, 2007
Hi
I have a customer that was using Sql 2005 Express on a W2k3 server. They then decided to turn the server in to a second domain controller. When they did this Sql Express stopped working, I'm guess because the account the service was running as nolonger existed (Network Service account). Because of this they demoted it back to just a member server, but still the sql express service wouldn't start.
When I look at their server now I have noticed that the Sql2005$ accounts Sql express created during installation are all missing.
What I want to do now is set the Sql express setvice to use a domain account (using the SqlServer configuration manager), but I'm concerned that because the sql2005$ groups are missing things won't run as expected.
Should I be worried about these accounts?
What would happen when it becomes a domain controller anyway, won't these local account disappear and hence my new sqlexpress service account wouldn't have permission to the sql server data folders??
Thanks for your help
Graham
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Apr 19, 2008
Hello Everyone,
I saw a lot of webcast about security in Sql Server and many of those talk about that is not recomendable install Sql Server on Windows Server Domain Controller. Actually, I don't know Why not? Someone can explain me, please?
Thank youª!!!
Julian Castiblanco P.
ITPros-DC
Bogotá,Colombia
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Feb 20, 2001
Any one know the answer?
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Feb 24, 2007
If my SQL Server authentication is windows integrated authentication, whenever my application makes a connection to SQL server does it contact the windows active directory domain controller to authenticate the windows user account? How does windows integrated authentication work in the background?
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Sep 13, 2006
I have SQL 2005 installed in a virtual (ESX) environment with a separate DC. Every minute or so an event shows up in the Application Event Log that says:
Type: Failure Audit
User: dgtestdc1$
Computer: sql1
Source: MSSQLSERVER
Category: (4)
Event ID: 18456
Description:
Login failed for user 'dgtestdc1$'. [Client: <ip address>]
Data includes: SQL1 master
Any idea what is causing this and how to fix it?
Thanks,
Mindy
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Oct 24, 2007
SQL Server 2005 SP2, installed as a default instance at the domain controller.
SSIS connection failed with the message
Failed to retrieve data for this request. (Microsoft.SqlServer.SmoEnum)
The RPC server is unavailable.
No firewalls, client and server in the same subnet, ping is ok.
I suspect the issue is similar to described here: http://support.microsoft.com/kb/940232
I've given the user all the rights to DCOM MsDTSServer, but I cannot include him to the local "Distributed COM users" group because the domain controller doesn't have local group at all.
I have included the user into the "domain admins" group, after that user got a connection. But this is not good, you know what I mean. Does any other solution exists, without reinstallation SQL Server to another server or giving the administrator's rights to the user?
Thank you.
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May 17, 2007
I am currently runinng Sql Server 2000 on a Windows 2003 domain controller. I cannot access my local sql server using windows authentication. All i receive is a cannot generate SSPI context error. I understand this is probably related to a security policy issue on the domain controller. Also Sqlserveragent service will not remain running and shutdowns immediately after it is started. This also produces an SSPI context error in the error log. If anyone can help with my configuartion of windows server 2003 such that sql server will recognize a valid sysadmin role for my domain admin account it would be greatly appreciated.
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Feb 18, 2004
I've just got RS Enterprise Edition.
Installed it in a Test Server, ok.
Installed it in a DEV server, having some errors.
My DEV server is an "ALL in 1" server, which is also a Domian Controller.
While Test Server is not a DC.
The installation was succesful but when I open RS Manager thru the web, it gives me a ASP.NET error:
Access to the path "D:Program FilesMicrosoft SQL ServerMSSQLReporting ServicesReportManagerin" is denied.
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.UnauthorizedAccessException: Access to the path "D:Program FilesMicrosoft SQL ServerMSSQLReporting ServicesReportManagerin" is denied.
ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}ASPNET on IIS 5 or Network Service on IIS 6) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.
To grant ASP.NET write access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.
I tried doing everything I can possible think of from the error message advice, including adding rights to ASPNET user from ISS to that particular folder...no success.
What I'm suspecting is I can't install RS in a DC box. But I can't find this info anyway in the web.
Anyone can point me to the correct direction or any advice?
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Jul 20, 2005
I have observed that a temporary loss of a domain controller can causeproblems creating new ado connections between a client machine runningado and a separate sql server machine that are members of the domain.I understand why this happens when creating connections with windowsauthentication. What is a mystery is that it also sometimes effectsnew connections that use "sql authentication". Below is a descriptionof my test scenario.a. Setup 3 machines.i. one domain controller machine. windows 2000 based. I have triedboth a regular domain setup and a domain setup in compatibility mode.ii. one sql server machine that is a member of the domain. windows2000.iii. one client machine running an ado test program that communicateswith the sql server machine. I have tried both 2000 and xp.b. Start your test ado program and create a connection.c. Fire a query.d. It should work.e. Unplug the network cord on the domain controller.f. Create a new connection and fire a new connection about a minute orso after.g. It should work. Apparently the client caches account informationfrom the domain controller for a certain amount of time. The timeseems to be shorter by default in xp than 2000.h. Wait 20 minutes or more.i. Create another new connection. You will notice a timeout error.If your using windows authentication the timeout will happen 100% ofthe time. That is to be expected. If your using sql authenticationthe timeout seems to happen about 50% of the time. I can't explain itother than some strange Microsoft bug. I speculate that it may besome bug with the way ado caches connections. Perhaps a previouslysetup windows authentication connection gets reused by a request for asql authentication connection. However I haven't been able to proveit.Any insight you can offer would be appreciated. I also have a testprogram you can use to reproduce this behavior if you are interested.Thanks,Frank
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Oct 16, 2015
how to configure sql express 2008 R2 on windows server 2008 R2 domain controller?? and one more thing, what log on should I use for sql express service in sql server configuration manager on domain controller??
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Feb 27, 2008
I would like to install SQL server 2005 cluster on Windows 2003 cluster. Is domain controller (AD and DNS) necessary for the SQL server 2005 cluster? If yes, may I install it on one of the SQL server 2005 cluster nodes? Thanks in advance
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May 29, 2001
My SQL 7 is on RAID 5. Sometimes on non-peak hours, on RAID disks first
two lights ( from left ) are constantly on for hours. NT Task manager, nothing
unusual, SQL current activity - no running user processes. Isn't second light
on RAID comes on if any disk activity ( Read/Write ).
Suggestions are appreciated.
Thanks,
Ivan
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Sep 28, 1998
I`ve tried implementing NT Software Raid / Stripping with Parity
and am unable to stripe disc that are more than 2g and
use SQL. I have not found any info in technet. Any ideas! Thanks.
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Dec 20, 1998
Should one install RAID 5 for SQL Server or just use separate hard drives, one for the data and one for the transaction log?
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Apr 15, 2008
could any one tell me about the difference between RAID and SHARED DISK ARRAY
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Jul 20, 2005
Hi,I was going to buy a server with Raid 1 as I thought that it meant that ifone of the two mirrored drives fail, you simply take it out and put a newone in. At which point presumably the hardware takes over and copies theother drive over to mirror it again.However, my sql server admin book, says raid 1 is bad, as it means you havelots of downtime, when recovering from a broken drive.Can anyone give me some advice on this? What is the best Raid to use whenyou are running SQL server on the server.ThanksJJ
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Sep 13, 2001
Im setting up a hardware raid 5 solution for one of our db servers. The data files will reside on the stripe. We dont realy want to raid more drives for the Transaction log if its not nessesary. If the drive with the log crashes is the data file for the database useless ?
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