Re: query on verify_dump option

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I am looking for this files in the same location where my fio is and i
dont see the two files that you refereed.

We have option to give pattern during verify only.
What i mentioned is during Write and reads there is no option to
provide the patterns.


On Thu, Apr 5, 2012 at 5:16 PM, Jens Axboe <axboe@xxxxxxxxx> wrote:
> On 2012-04-05 17:20, Suresh Dhanarajan wrote:
>> Hi,
>> I am trying data integration cases with verify_pattern option.
>> I am not seeing any dump file generated for the mismatch.
>> Here are the steps i followed,
>> Started fio and waited till 30 % writes done the disk and issued a dd
>> write on the same disc for the first 512 bytes with pattern zero.
>> then waited till verify gets completed.
>> I can see the error's in the output log file but not the dump file.
>> Here is my job file.
>> [global]
>> size=10g
>> direct=1
>> filename=/dev/sdc
>> verify_pattern=0x01010101
>> verify=meta
>> bs=64k
>> group_reporting
>> [write-phase]
>> rw=write
>> do_verify=0
>> [verify-phase]
>> stonewall
>> rw=read
>> do_verify=1
>> continue_on_error=all
>> verify_dump=1
>> ~
>> Let me know if i am missing something over here.
> You don't get the .received and .expected files?
>> 2)Also i have one query like verify_pattern option is it possible to
>> provide known pattern for write and reads this will be very useful in
>> DI verification test cases
> Not sure I understand this one. You are already providing the pattern
> you want. What am I missing?
> --
> Jens Axboe
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