Drives On Server And How To Define Raid For Them
Jan 25, 2008
Hello! I hope that I have posted in the right spot.
We are looking for advise. I know that there is no right or wrong answer. "It depends."
We currently have a server with the OS as Windows Server 2003 SP2 and SQL Server 2000 SP3. This Server has 6 physical drives; only 3 of these physical drives are being used. These 3 physical drives are 1 container with Raid 5. This 1 container is divided into 3 logical drives.
We would like to fill the other 3 physical drive slots and create another container. We were thinking of making this Raid 1.
I should put in my disclaimer that Raid 10 is out of the question and so is SAN.
Is Raid 1 the best choice? This is my first question.
Next is how should we split up the files among the containers.
For example, OS, log and swap file on container 1 with Raid 1 and datafiles on container 2 with Raid 5?
What are most people doing? Is there a standard? Can people provide examples of what they are doing or provide suggestions?
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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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Aug 6, 2001
Hi,
I mapped a drive on to my SQL Server box. It points to another server from the same domain. When I try to backup or restore a database, I can't see this mapped drive through my SQL Server. Even if I type the entire path, SQL Server wouldn't take it. I don't have a clue about why it is not working. Can anyone throw some light on this. Your help is grately appreciated.
Thanks,
Varma
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Mar 13, 2006
My sql server is not showing all of my drives in server. Please help me
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May 18, 2006
I have a database that is around 2 to 4 GB.If I were to estimate some numbers like 4x growth oreven 10x, the database size could reach 40GB.The new server will be running SQL Server 2005.I am not sure which configuration option to take.I've gathered some information from different places:Configuration #1:OS - Raid1 2x36GBLogs - Raid1 2x36GBData - Raid 5 4x73GBConfiguration #2:OS - Raid1 2x36GBLogs - Raid5 (not sure how many drives)Data - Raid5 (not sure how many drives)Now if I am using a separate RAID array disksfor the database's transaction log, should I also put theTempDB in this RAID also?Here's the configuration I am thinking of right now.Please give me your comments:OS - Raid1 2x36GBLogs & TempDB - Raid5 3x36GB = 2x36GB usable spaceData - Raid5 3x73GB = 2x73GB usable spaceIf you have other configurations you recommend please letme know.Thank you
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Dec 2, 2006
Is there any benefit in creating seperate file groups for a partitionedtable on a multi-processor server with RAID5 and 1 Logical Drive?
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May 26, 2006
Not the server software obviously, but storing the files on their RAID solution? it doesn't seem that bad of a bang for your buck and I read good things about it.
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Apr 14, 2015
I'm aware that it's best practice to separate mdf and ldf files onto separate drives.
However, I see a lot of servers where the underlying disk array is the same for drives on the server.
Is there still any performance benefit to separating mdf and ldf files in this situation?
For example, a single virtual server running SQL Server, with multiple drives attached.All of the drives are connected to a shared storage via iSCSI.There drives C:, D:, E: etc are all actually sharing the same underlying disks.
Obviously, there are some benefits from an administration perspective whereby individual drives can be reconfigured without affecting the others.
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Aug 26, 2015
Currently we're running everything on C: but I've convinced management to split out, what's the command to add drives?
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Jul 20, 2005
All,To make a long story short, we are swapping out the "knock-off" drivesthat the NA purchased on E-Bay in one of our production SQL Servers(SQL Server 2000 Enterprise) this weekend for brand new ones (Compaq15K RPM 32GB drives). We are currently experiencing ASR almost on adaily basis and it is really causing a disription in service. SO, TheNetwork Admin ahs made this decison to replace these drives in attemptto solve this. These new drives will be imaged with ALL of the currentdata on the "knock-off' drives and will be plugged back in to thisdatabase server and brought back up .This Server also happens tocurrently be a subscriber in Merge Replication as well. Besidesstopping replication to this subscriber is there any other tasks thatI need to do or concerns that I need to be knowledgable about or lookfor when we bring this database server backup on line this weekend?Thanks Travis. :)
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Jun 9, 2006
Dear sir/madam,
I am from NTU, Singapore and we have a windows 2003 server edition installed on a DELL server and it also runs MS SQL server 2000 for a project of ours. We have installed a HP tape drive on the dell server and it works fine if ntbackup is used at the command prompt but then the SQL enterprise manager does not recognize the tape drive and backing up of our database is of high priority as it contains sensitive information. But the tape drive is installed properly as the device manager does not show any error and ntbackup also recognizes it. I cant seem to figure out why SQL server 2000 cannot recognize it. It would be very helpful if you could kindly guide me on this issue.
Thanking you
Regards
Lavanya Janardhanan
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Dec 13, 2006
Hi All,
Is it possbile to define connection string for web and database server which is running on different machine. Note( Not same LAN).
E.g (My Web Server is in London and Database server in Sydney).
Please can any one help me.??
Thanks in advance...
Dj
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Jan 16, 2007
Good day to all!I have a problem to resolve.Which is the script in sql in order to define one hierarchy of products categories?I have need to define the script for the creation of the table and store procedures (INSERT,DELETE,UPDATE,GET,GETALL).Thanks for the eventual answers !
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Mar 23, 2006
is it possible to define in sql server linked tables to odbc data sources as it is possible to do in access?
except Access and vfp, is there another database that allows to create linked tables to odbc data sources?
I need to combine in a database native tables with odbc linked tables, but it would need to use a database more powerful that access or vfp
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Feb 23, 2006
Hi there, I am just trying to create an ENDPOINT to define a Web Service in Sql
server 2005. Here is my code
Create ENDPOINT AWService STATE = STARTED As HTTP ( PATH = '/ADVENTUREWORKS', AUTHENTICATION = (INTEGRATED), PORTS = (CLEAR), SITE = 'DEVISQLDM2005' ) FOR SOAP ( WEBMETHOD 'GetProductList' (NAME = 'AdventureWorks.Dbo.GetProductList'), DATABASE = 'AdventureWorks', WSDL = DEFAULT )
and when i run this T-SQL its complaining about
Msg 7807, Level 16, State 1, Line 1 An error ('0x80070057') occurred while attempting to register the endpoint 'AWService'.
I am trying this code to run on Windows XP pro and Sql Server 2005. Any
clue why its complaining about this ?
Thanks -D
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Sep 24, 2014
I've two tables A, B. In A table, I need to define the primary key with combination of 2 columns and this Primary Key will be a foreign key in table B. Based on these PK and FK I'll be writing a join to get the second column in table B.
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Mar 19, 2008
I use MSSQL Server to store the configure info and create deploymentutility to deploy the package on remote server,
If the configure info could be created automatically while deploying?
or I have to create the Table on remote server to record the configure info in manully?
Thanks a lot
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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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Feb 6, 2008
I am trying to run a program called NVivo7, which - when I install - also requires installation of SQL Server. Because my C drive is small (and nearly full), I am trying to run NVivo7 off my D drive, though SQL seems to install on C. Is it possible, do you think, to use 2 different drives in this way, or do both the program and the Server need to be on the same one? If so, is there any way to get them both on D?
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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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Nov 29, 2005
Hi guys,
On a new server with 4 disks, what level of raid is best to apply. In terms of what's important, I'd say speed is at the top of the list.
BJ
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Mar 17, 2004
Hello,
I run a small homw office. I am planning to purchase a dell powerdge 1750 server to install SQL server on that.
I am confused here about which RAID should I install on this server RAID 1 or RAID 5.
The dell customer rep could not tell me the advantages of installing only RAID 1 or only RAID 5 or installing both RAID 1 and RAID 5
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Jun 11, 2008
HI All,
I'm going to buy 1 IBM DS3400 SAN. I got 2 x SQL Servers
one for our ERP System other for Web
Physical Server are like this ATM
SQL1 (ERP) ( 3 RAID arrays)
-----
OS: 36GB (RAID 1)
DATA: 120GB (RAID 5)
Log : 15GB (RAID 5)
Backup:270GB (RAID 5)
SQL 2 (WEB) ( 2 RAID Arrays)
-----
OS: 120GB (RAID1)
Data/log/bak 569GB (RAID10) disk like this
DATA: 218gb
LOG:15gb
Backup: rest
So how do i raid the SAN and what sort of HDD i should buy?
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Feb 21, 2007
So i'm not really new, but got a question. i've recently been looking to to the Western Digital Raptor Drives.
as far as performance, it's always been my understanding that the speed of the hard drive is just about always the bottle-neck of a computer. i'm currently running 2 stripped WD 500gb SATA drives for my SQL server (dual Xeon 2.8 with 2GB memory).
i'm thinking of upgarding to 4 WD Raptors (10k RPM) drives, the new 150GB models. anyone have an opionion? do you think i'll get a large performance increase?
the database that i run queries off of now is about 125 Million names, with about 80 fields in width. so it's rather large, and usally takes a fair abount of time to get my results back (we're talking anywhere from a minute, to half the day.)
do you think the raptors will slim that down significantly?
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Mar 18, 2006
I am recommending that we change our Raid Configuration on some of ourServers from Raid 5 to Raid 0+1; we are experiencing severe IObottlenecks.Our hardware guys are pushing back a bit. They claim that Dell has aweird implementation of 0+1 and told me something about one drivefilling up before it begins to write to the next. They claimed thatthis gets rid of most of the benefits of 0+1.I know that 0+1 is not as good as 10 for availability, fault tolerance,and rebuilding, but shouldn't the write throughput be about the same?Setup:Poweredge 2850Powervault 220SPerc 4/DC Controller 1Perc 4e/DI Controller 0
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Jan 5, 2006
I have always used RAID 5 for my database apps. I am wondering though is this the best solution. I am purchasing a new server and deciding whether to go with RAID 1 or RAID 5. This server will support all our .NET Apps, SQL Server 2005, Reporting Services, and Integration Services.
Any Input?
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Mar 14, 2008
We recently installed SQL Server 2005. The server has 3 drives. When I try to restore a database I can only access the C: drive. How do I make the D: and E: drives visible in the "locate folder" window?
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