RE: Limit LBA Range

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The capacity of the SSD is 850GB, but I am attempting to run the workload
from 0 to745GB of the capacity. I would like for the workload to continue
for 15,000 seconds, even if more than 745GB of data is written. Is there a
method for that?

-----Original Message-----
From: fio-owner@xxxxxxxxxxxxxxx [mailto:fio-owner@xxxxxxxxxxxxxxx] On Behalf
Of Jens Axboe
Sent: Monday, September 29, 2014 2:34 PM
To: Jon Tango; fio@xxxxxxxxxxxxxxx
Subject: Re: Limit LBA Range

On 2014-09-28 21:28, Jon Tango wrote:
> I am using windows server 2012R2 and am attempting to limit the LBA 
> range of the test. It doesn't seem to be working, I am using this, is it
correct?
>
> [global]
> name=4ktest
> filename=\\.\physicaldrive1
> direct=1
> numjobs=8
> norandommap
> ba=4k
> time_based
> size=745g
> log_avg_msec=100000
> group_reporting=1
>
> #########################################################
>
> [4K Precon]
> stonewall
> runtime=15000
> iodepth=32
> bs=4k
> rw=randwrite

The above will be doing IO between 0 and 745G, and do 745G worth of IO (in
other words, the full range given). Not sure how to answer your question
more precisely, as you don't mention what LBAs you want your test to be
limited to.

--
Jens Axboe

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