[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
>
>
>
>
>
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