don't know which raid to use

[Guest sharonag]

Hi,

I just got new server which I'm going to use for Microsoft Team

Foundation Server.

the first one is for the Application server and the Other is for the

Data server.

each server have 6 HD.

I'm trying to figure which RAID to use on each server.

I think that the Data server with the SQL is more obvious, I made Raid

1 from 2 HD for the system partition and raid 5 from 4 HD's for all

the SQL data.

I Don't know which array configuration I should do on the Application

Server.

 

In addition, is it possible to change the array configuration after

the OS installation?

 

thanks.

[Guest Johnny Chaves]

RE: don't know which raid to use

 

Hi...

I can tell you this.. for the SQL server is recommended to use RAID 1+0,

because you need fast access to the disk and also a failover. take in count

the databases should be hosted in a partition formatted using 64k(allocation

unit size) and also separated from the OS (obviuosly).

Sorry I can't help you with the application server, I guest RAID 5.

Is not possible to change a RAID configuration once anything is installed,

if you change it you will loose everything.

 

 

"sharonag" wrote:

> Hi,

> I just got new server which I'm going to use for Microsoft Team

> Foundation Server.

> the first one is for the Application server and the Other is for the

> Data server.

> each server have 6 HD.

> I'm trying to figure which RAID to use on each server.

> I think that the Data server with the SQL is more obvious, I made Raid

> 1 from 2 HD for the system partition and raid 5 from 4 HD's for all

> the SQL data.

> I Don't know which array configuration I should do on the Application

> Server.

>

> In addition, is it possible to change the array configuration after

> the OS installation?

>

> thanks.

>

[Guest AllenM]

Re: don't know which raid to use

 

Well taken the given I believe you have a dual channel RAID controller on

your new servers? Nothing wrong with going RAID1 (mirror) for your OS and

RAID5 for your DATA partition. Although depending on the size of the drives

it would be overkill to use 2x73GB or larger drives just for your OS. If all

your HDD are 73GB or larger I would simply go with one RAID5 configuration

and use seperate partitions for my OS and DATA.

 

 

"sharonag" <sharonag@gmail.com> wrote in message

news:29bb849a-8f4b-4867-8671-0b9a781d0828@n14g2000pri.googlegroups.com...

> Hi,

> I just got new server which I'm going to use for Microsoft Team

> Foundation Server.

> the first one is for the Application server and the Other is for the

> Data server.

> each server have 6 HD.

> I'm trying to figure which RAID to use on each server.

> I think that the Data server with the SQL is more obvious, I made Raid

> 1 from 2 HD for the system partition and raid 5 from 4 HD's for all

> the SQL data.

> I Don't know which array configuration I should do on the Application

> Server.

>

> In addition, is it possible to change the array configuration after

> the OS installation?

>

> thanks.

[Guest Anthony [MVP]]

Re: don't know which raid to use

 

There is no right answer, only budgets.

- OS should be separate mirrored pair

- Lots of memory, consider using Enterprise or 64 bit for more than 4GB

- pagefile *can be* on separate physical disks

- SQL data should be on separate RAID5 array

- SQL log files *can be* on separate mirrored pair

- Application: depends what it is. If it is a web app connecting to the SQL

database, then a mirrored pair would be nice.

You can't change any of these dynamically, but you can reconfigure most of

it fairly easily except for the OS,

Anthony

http://www.airdesk.co.uk

 

 

 

"sharonag" <sharonag@gmail.com> wrote in message

news:29bb849a-8f4b-4867-8671-0b9a781d0828@n14g2000pri.googlegroups.com...

> Hi,

> I just got new server which I'm going to use for Microsoft Team

> Foundation Server.

> the first one is for the Application server and the Other is for the

> Data server.

> each server have 6 HD.

> I'm trying to figure which RAID to use on each server.

> I think that the Data server with the SQL is more obvious, I made Raid

> 1 from 2 HD for the system partition and raid 5 from 4 HD's for all

> the SQL data.

> I Don't know which array configuration I should do on the Application

> Server.

>

> In addition, is it possible to change the array configuration after

> the OS installation?

>

> thanks.