[Disksim-users] Disksim-users Digest, Vol 54, Issue 2

[fei fei]

thank u for your help..
about question 2 i find that"* there are many linux kernel patches can do
this
**  such as LL_TRACE for 2.4 kernel" in
https://sos.ece.cmu.edu/pipermail/disksim-users/2006-July/000043.html*

2010/3/7 <disksim-users-request at ece.cmu.edu>

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> Today's Topics:
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>   1. help for the construction of raid 5 in disksim and        the way of
>      trace acquisition (fei fei)
>   2. Re: help for the construction of raid 5 in disksim        and the
>      way of trace acquisition (Yinliang Yue)
>
>
> ---------- 已转发邮件 ----------
> From: fei fei <fei33423 at gmail.com>
> To: disksim-users at ece.cmu.edu
> Date: Sat, 6 Mar 2010 14:52:33 +0800
> Subject: [Disksim-users] help for the construction of raid 5 in disksim and
> the way of trace acquisition
> question 1 :    i have read the manul ,and i want to use the disksim to
> simulate a raid 5 system about reading and writing.
>             in the manual ,i find that the parameter concerned with raid 5
> is "redundancy scheme "in the section "disk array date organization" of the
> manual
>            and  i find  the file synthraid5.parv in the "valid" folder of
> the disksim source code .however i can not find the configuration about raid
> 5 in                     the file.
>             *how do the disksim make the data  stored in the way of raid
> 5?*
>             *if i will reach my purpose ,which one in the "src" folder  of
> the disksim source code should i change ??*
>
> question 2 :     in a paper i find that the author use the trace of the
> software " cpp ,andrew benchmark and wc"as a input to disksim
>             [The C preprocessor (cpp) is the preprocessor for the C
> programming language. ]
>             [The Andrew benchmark is used to compare BFS with two other
> file systems]
>             [The wc command stands for " word count ]
>             *how can i get the trace of the software ? utilise some tool??
> *
>
>
> ---------- 已转发邮件 ----------
> From: Yinliang Yue <yueyinliang at gmail.com>
> To: fei fei <fei33423 at gmail.com>
> Date: Sat, 6 Mar 2010 15:07:06 +0800
> Subject: Re: [Disksim-users] help for the construction of raid 5 in disksim
> and the way of trace acquisition
> The answers to the first question:
>
> The following combination in  synthraid5.parv  shows that you are using a
> RAID5. For the reason, please see the manual.
>
>    Distribution scheme = Striped,
>    Redundancy scheme = Parity_rotated,
>
>
> Please see the the function named logorg_maprequest() in disksim_logorg.c
> if you want to make a deep analysis of the mechanism of RAID5.
>
>
>
>
> 2010/3/6 fei fei <fei33423 at gmail.com>
>
>> question 1 :    i have read the manul ,and i want to use the disksim to
>> simulate a raid 5 system about reading and writing.
>>             in the manual ,i find that the parameter concerned with raid 5
>> is "redundancy scheme "in the section "disk array date organization" of the
>> manual
>>            and  i find  the file synthraid5.parv in the "valid" folder of
>> the disksim source code .however i can not find the configuration about raid
>> 5 in                     the file.
>>             *how do the disksim make the data  stored in the way of raid
>> 5?*
>>             *if i will reach my purpose ,which one in the "src" folder
>> of the disksim source code should i change ??*
>>
>> question 2 :     in a paper i find that the author use the trace of the
>> software " cpp ,andrew benchmark and wc"as a input to disksim
>>             [The C preprocessor (cpp) is the preprocessor for the C
>> programming language. ]
>>             [The Andrew benchmark is used to compare BFS with two other
>> file systems]
>>             [The wc command stands for " word count ]
>>             *how can i get the trace of the software ? utilise some
>> tool??*
>>
>> _______________________________________________
>> Disksim-users mailing list
>> Disksim-users at ece.cmu.edu
>> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>>
>>
>
>
> --
> Regards!
>
> Yinliang Yue
> F301, WNLO, HUST, Wuhan, China
> Tel: +86-27-87792302-801
>
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> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>
>
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