Run FIO on a Windows Partition

Run FIO on a Windows Partition

[Ritchie Babaylan]

Hi,

I am just curios if FIO can test a Windows partition, say F: as the assigned drive letter.
What would be the correct syntax do I need to put on a "filename" parameter?
Do I need to use the "directory" parameter instead?

[job1]
ioengine=windowsaio
iodepth=4
rw=write
filename=F:

Btw, I am using the latest FIO v2.1.10 (32bit) version on Windows 7 (32bit).

�
Thanks,
�
Ritchie Babaylan
Advance CORE Engineering
BiTMICRO Networks, Inc.

Re: Run FIO on a Windows Partition

[Jens Axboe]

On 08/03/2014 06:12 PM, Ritchie Babaylan wrote:
> Hi,
> 
> I am just curios if FIO can test a Windows partition, say F: as the assigned drive letter.
> What would be the correct syntax do I need to put on a "filename" parameter?
> Do I need to use the "directory" parameter instead?
> 
> [job1]
> ioengine=windowsaio
> iodepth=4
> rw=write
> filename=F:
> 
> Btw, I am using the latest FIO v2.1.10 (32bit) version on Windows 7 (32bit).

Bruce might know (CC'ed).

-- 
Jens Axboe

Re: Run FIO on a Windows Partition

[Bruce Cran]

On 8/7/2014 3:28 PM, Jens Axboe wrote:
> On 08/03/2014 06:12 PM, Ritchie Babaylan wrote:
>> I am just curios if FIO can test a Windows partition, say F: as the assigned drive letter.
>> What would be the correct syntax do I need to put on a "filename" parameter?
>> Do I need to use the "directory" parameter instead?

Specifying F: (or F:\) would test the filesystem, not the partition. I'm 
not aware of any way to easily test the area of disk on which the 
partition resides - you'd need to test the disk \\.\PhysicalDriveX and 
seek to the starting sector.  However, Windows prevents writes to areas 
of a disk which contains filesystems, so you would only be able to read 
and not write.

-- 
Bruce

RE: Run FIO on a Windows Partition

[Ritchie Babaylan]

Thanks Bruce. I already figure it out. Below is the working config I used.

[job1]
ioengine=windowsaio
iodepth=4
rw=write
filename=\\.\F\:


 
Thanks,
 
Ritchie Babaylan
Advance CORE Engineering
BiTMICRO Networks, Inc.


-----Original Message-----
From: Bruce Cran [mailto:bruce@cran.org.uk] 
Sent: Friday, August 08, 2014 7:05 AM
To: Jens Axboe; Ritchie Babaylan; fio@vger.kernel.org
Subject: Re: Run FIO on a Windows Partition

On 8/7/2014 3:28 PM, Jens Axboe wrote:
> On 08/03/2014 06:12 PM, Ritchie Babaylan wrote:
>> I am just curios if FIO can test a Windows partition, say F: as the assigned drive letter.
>> What would be the correct syntax do I need to put on a "filename" parameter?
>> Do I need to use the "directory" parameter instead?

Specifying F: (or F:\) would test the filesystem, not the partition. I'm not aware of any way to easily test the area of disk on which the partition resides - you'd need to test the disk \\.\PhysicalDriveX and seek to the starting sector.  However, Windows prevents writes to areas of a disk which contains filesystems, so you would only be able to read and not write.

--
Bruce