Database mirroring and raw partitions

I have several servers that I am setting up using raw disk partitions for th
e
data and log storage, and at the same time I am very interested in the new
database mirroring technology in SQL 2005. My question and problem is this,
I can get mirroring to work if I have the logs on a ntfs partition, but if I
place them on a raw partition the mirror goes into a suspended state and the
error logs have the following errors:
----
--
While acting as a mirroring partner for database 'RealTime', server instance
'DATA2' encountered error 5123, status 1, severity 16. Database mirroring
will be suspended. Try to resolve the error and resume mirroring.
Error: 1454, Severity: 16, State: 1.
CREATE FILE encountered operating system error 32(The process cannot access
the file because it is being used by another process.) while attempting to
open or create the physical file 'C:\DriveMapping\RealTime_Log_Disk3\'.
----
--
The raw partitions are set up using mapped folders on a ntfs partition, and
the database can execute queries 20-25% faster than an identical server I
have set up with the data and logs on NTFS partitions.Hi
As you can't do normal OS operations on a RAW partition it does not really
surprise me that this is not possible, but I have not found anything to say
that!!!
What was the sector size on the NTFS volume that did not perform?
John
"MDBVV" wrote:

> I have several servers that I am setting up using raw disk partitions for
the
> data and log storage, and at the same time I am very interested in the new
> database mirroring technology in SQL 2005. My question and problem is thi
s,
> I can get mirroring to work if I have the logs on a ntfs partition, but if
I
> place them on a raw partition the mirror goes into a suspended state and t
he
> error logs have the following errors:
> ----
--
> While acting as a mirroring partner for database 'RealTime', server instan
ce
> 'DATA2' encountered error 5123, status 1, severity 16. Database mirroring
> will be suspended. Try to resolve the error and resume mirroring.
> Error: 1454, Severity: 16, State: 1.
> CREATE FILE encountered operating system error 32(The process cannot acces
s
> the file because it is being used by another process.) while attempting to
> open or create the physical file 'C:\DriveMapping\RealTime_Log_Disk3'.
> ----
--
> The raw partitions are set up using mapped folders on a ntfs partition, an
d
> the database can execute queries 20-25% faster than an identical server I
> have set up with the data and logs on NTFS partitions.
>
>|||Hi
As you can't do normal OS operations on a RAW partition it does not really
surprise me that this is not possible, but I have not found anything to say
that!!!
What was the sector size on the NTFS volume that did not perform?
John
"MDBVV" wrote:

> I have several servers that I am setting up using raw disk partitions for
the
> data and log storage, and at the same time I am very interested in the new
> database mirroring technology in SQL 2005. My question and problem is thi
s,
> I can get mirroring to work if I have the logs on a ntfs partition, but if
I
> place them on a raw partition the mirror goes into a suspended state and t
he
> error logs have the following errors:
> ----
--
> While acting as a mirroring partner for database 'RealTime', server instan
ce
> 'DATA2' encountered error 5123, status 1, severity 16. Database mirroring
> will be suspended. Try to resolve the error and resume mirroring.
> Error: 1454, Severity: 16, State: 1.
> CREATE FILE encountered operating system error 32(The process cannot acces
s
> the file because it is being used by another process.) while attempting to
> open or create the physical file 'C:\DriveMapping\RealTime_Log_Disk3'.
> ----
--
> The raw partitions are set up using mapped folders on a ntfs partition, an
d
> the database can execute queries 20-25% faster than an identical server I
> have set up with the data and logs on NTFS partitions.
>
>