[Disksim-users] Has anyone used DIXtrac?

[Yonggang Liu]

Thank you so much for your reply. I will try it on real SCSI disks.

On Mon, Jul 5, 2010 at 4:12 PM, Greg Ganger <ganger at ece.cmu.edu> wrote:

>
> Perhaps I am misunderstanding, but you should not expect DIXtrac to
> successfully characterize a virtual disk.
>
> Greg
>
>
>
> On Mon, 5 Jul 2010, Yonggang Liu wrote:
>
>  Hello all,
>>
>> I'm pretty new to Disksim. Recently I met some problems when I was running
>> DIXtrac on CentOS 5.1 to model the 8GB SCSI disk on VMWare.
>>
>> I followed what DIXtrac says to extract the local disk model. The first
>> problem is when doing the disk layout mapping, it shows "Cannot handle
>> defect list format (0)". So I looked into the code and commented out the
>> "read_defect_list" function in that hope that it still works correctly.
>> But
>> after then I met the second problem. When I'm running pass0.py, the
>> program
>> kept running all the time (it didn't finish after several days). I think
>> it
>> may because the python program has used up too big memory, since it stores
>> the entire content of "layout.mappings" to the object "lout". But the
>> layout.mappings file is usually in the scale of gegabyte, which the memory
>> can not deal with. To verify my guessing, I tried the small
>> layout.mappings
>> files, and this time pass0.py works well.
>>
>> These problems have confused me for a couple of weeks. If anyone have used
>> DIXtrac, could you please help me? I will really appreciate it. Thank you
>> very much!
>>
>> --
>> Yonggang Liu
>> Advanced Computing and Information Systems Laboratory
>> University of Florida
>>
>>


-- 
Yonggang Liu
Advanced Computing and Information Systems Laboratory
University of Florida
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