[Disksim-users] Dixtrac and topology questions

Anjo Vahldiek vahldiek at mpi-sws.org
Mon Jun 18 05:23:46 EDT 2012


This is not correct. At least in my experience Dixtrac can work for 
disks with a capacity of 300GB. Most important are two things:
1) Disk has to be a SCSI disk
2) OS has to be 32-bit

I finished extracting the model of 2 Maxtor disk (146GB & 300GB) 
including comparison graphs. You can find them here:
http://ovahldy.blogspot.de/2011/03/recent-diskmodels-for-disksim.html

For question 2:
In my opinion what you suggest requires extensive programming. At least 
I haven't seen code which would deal with broken buses...

For simplicity you may want to look at how to integrate disksim with a 
system simulator (in src/syssim). It may be easier to write your own 
outside special handling for broken busses.

Anjo

On Mon 18 Jun 2012 07:53:25 AM CEST, 李兆虎 wrote:
> For question 1,I don't think DIXtrac can help you .I have use it work
> on a disk about 300G,but it dosen't work.DIXtrac will work on small disk.
>
> At 2012-06-16 06:05:14,"Ricardo Rey" <ricardoreyyy at gmail.com> wrote:
>
>     Hi!
>
>     I have a couple of questions:
>
>     1) How do I generate a ".diskspecs" file for some disk type? Do I
>     have to use DIXtrac? Or is there some other way? And, about
>     this... does anyone know if there is some repository of
>     *.diskspecs somewhere?
>
>     2) I would like to test some high-availability topologies with
>     redundancy; something like this:
>
>         topology disksim_iodriver ctlr0 [
>             disksim_bus bus1 [
>                 disksim_disk disk0 []
>                 disksim_disk disk1 []
>             ]
>             disksim_bus bus2 [
>                 disksim_disk disk0 []
>                 disksim_disk disk1 []
>             ]
>         ]
>
>     Note that disk0 and disk0 are connected to both buses. Is it
>     possible to build such an architecture?
>
>     What I want to do is test some worst-case-scenarios, with some
>     components failing, and how would the system respond to that. That
>     is why I need this redundant topology.
>
>     Thanks in advance
>
>     - Rick
>
>
>
>
>
> _______________________________________________
> Disksim-users mailing list
> Disksim-users at ece.cmu.edu
> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users



More information about the Disksim-users mailing list