From markosjal at gmail.com  Tue May 19 14:35:12 2009
From: markosjal at gmail.com (Mark DM)
Date: Tue, 19 May 2009 13:35:12 -0500
Subject: [Disksim-users] Fwd: IDE Disk Simulation
In-Reply-To: <e375fbf50905190217x82629cv4130af5d718361d3@mail.gmail.com>
References: <e375fbf50905190217x82629cv4130af5d718361d3@mail.gmail.com>
Message-ID: <e375fbf50905191135m66a35caofddb870e0f45ac39@mail.gmail.com>

Hello,

I have been looking to create an embedded solution, and your Disk Simulator
project, or at least a part of it,  looks like it may be what I need.


I am interested mostly in the hardware used in your project. I need only
simulate an IDE or SATA Disk, that would ultimately connect to  a Samba or
NFS share. From what I read that came out of Berkeley, it runs an unmodified
version of Linux. I also saw some images of a board that came from UC
Berkeley, but I can not find any details about the hardware that was used
there either. Do you know of any similar prototype platforms? Can you
provide details or links to what you use?

Thanks,

Mark de Leon Martinez
1 503 334 0591
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.andrew.cmu.edu/pipermail/disksim-users/attachments/20090519/972bacef/attachment.html>

From disksim-users at ece.cmu.edu  Thu May 21 10:17:27 2009
From: disksim-users at ece.cmu.edu (Pharmaceuticals ED)
Date: Thu, 21 May 2009 10:17:27 -0400 (EDT)
Subject: [Disksim-users] URK:: Pills having completely cleared alcohol
	side-effects.
Message-ID: <20090521141727.83373A6C@hazard.ece.cmu.edu>

An HTML attachment was scrubbed...
URL: <http://lists.andrew.cmu.edu/pipermail/disksim-users/attachments/20090521/b2a5ca5b/attachment.html>

From markosjal at gmail.com  Thu May 21 20:25:40 2009
From: markosjal at gmail.com (Mark DM)
Date: Thu, 21 May 2009 19:25:40 -0500
Subject: [Disksim-users] Hardware used for UDE and SATA emulation
Message-ID: <e375fbf50905211725r9538030tb000f70ed5d1ba77@mail.gmail.com>

I do not know of my last post did not make it to the list so I will make a
similar post hgere after having waited.

I need to set up DiskSIM with IDE or SATA (preferrably IDE) interfaces. I
understand that a SCSI host adapter may be no different than a ASCI device,
however I do not know if this applies to the workd of ATA and SATA as well.

If anyone he45e can please clarify what hardware  I need to emulate an ATA
and SATA interface I would very much appreciate it




Thanks,

Mark de Leon
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.andrew.cmu.edu/pipermail/disksim-users/attachments/20090521/952133fd/attachment.html>

From markosjal at gmail.com  Fri May 22 10:23:20 2009
From: markosjal at gmail.com (Mark DM)
Date: Fri, 22 May 2009 09:23:20 -0500
Subject: [Disksim-users] Hardware used for IDE and SATA emulation
Message-ID: <e375fbf50905220723i7d3e190cw92e5c85a1dc35393@mail.gmail.com>

Clarifiication of my last post here

When I referred to "ASCI", it was a typo and should have read "SCSI"

My interest is more in hardware to emulate an IDE or ATA interface

Thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.andrew.cmu.edu/pipermail/disksim-users/attachments/20090522/f51d2229/attachment.html>

From seth.hg at gmail.com  Fri May 22 11:43:11 2009
From: seth.hg at gmail.com (seth)
Date: Fri, 22 May 2009 23:43:11 +0800
Subject: [Disksim-users] Hardware used for IDE and SATA emulation
In-Reply-To: <e375fbf50905220723i7d3e190cw92e5c85a1dc35393@mail.gmail.com>
References: <e375fbf50905220723i7d3e190cw92e5c85a1dc35393@mail.gmail.com>
Message-ID: <515244d80905220843u238bd43cha114fabc6a6cf0e@mail.gmail.com>

Hi Mark,
If I understand correctly, what you need is a hareware emulator for
disk drives. In that case, disksim is definitely not for you.

Seth

2009/5/22 Mark DM <markosjal at gmail.com>:
> Clarifiication of my last post here
>
> When I referred to "ASCI", it was a typo and should have read "SCSI"
>
> My interest is more in hardware to emulate an IDE or ATA interface
>
> Thanks
>
> _______________________________________________
> Disksim-users mailing list
> Disksim-users at ece.cmu.edu
> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>
>


From markus at bluegap.ch  Mon May 25 03:35:58 2009
From: markus at bluegap.ch (Markus Wanner)
Date: Mon, 25 May 2009 09:35:58 +0200
Subject: [Disksim-users] Hardware used for UDE and SATA emulation
In-Reply-To: <e375fbf50905220716u46a7afecs7ad8a96100075988@mail.gmail.com>
References: <e375fbf50905211725r9538030tb000f70ed5d1ba77@mail.gmail.com>
	<20090522085458.14030zsj28u5i2wy@mail.bluegap.ch>
	<e375fbf50905220716u46a7afecs7ad8a96100075988@mail.gmail.com>
Message-ID: <20090525093558.64463co7zr33l1lq@mail.bluegap.ch>

Hello Mark,

Quoting "Mark DM" <markosjal at gmail.com>:
> My understanding of disksim is that id does more than measure that it
> actually EMULATES the disk via a network and an interface such as SCSI or
> IDE.

No, it simulates the timings, but without any real data behind it.  
AFAIU disksim takes I/O access patterns and returns estimated timings  
for various storage systems (or single platters).

> My intention is to actually emulate a disk via a network interface.

Does that emulated disk require some sort of cycle accurate timings  
WRT some real disk or storage system? That's probably the only point  
where disksim could be of use for you.

> What I am trying to determine is the hardware required to emulate an IDE
> disk. Is any old IDE host controller usable for this?

I don't consider an "old IDE host controller" to be an emulation. It's  
just an IDE controller. If it suffices, you don't need to emulate  
anything, do you?

If you are really more into hardware, you might want to look at  
various VHDL or Verilog projects on OpenCores, they provide some sort  
of IDE (i.e. ATA) controller at [1].

Regards

Markus Wanner


[1]: The ATA project at OpenCores:
http://www.opencores.org/?do=project&who=ata


From swschlosser at gmail.com  Tue May 26 08:50:05 2009
From: swschlosser at gmail.com (Steve Schlosser)
Date: Tue, 26 May 2009 08:50:05 -0400
Subject: [Disksim-users] Hardware used for UDE and SATA emulation
In-Reply-To: <20090525093558.64463co7zr33l1lq@mail.bluegap.ch>
References: <e375fbf50905211725r9538030tb000f70ed5d1ba77@mail.gmail.com>
	<20090522085458.14030zsj28u5i2wy@mail.bluegap.ch>
	<e375fbf50905220716u46a7afecs7ad8a96100075988@mail.gmail.com>
	<20090525093558.64463co7zr33l1lq@mail.bluegap.ch>
Message-ID: <4d362c350905260550r74e8c337hec345e92caaf4c9a@mail.gmail.com>

Hi Mark

Disksim is only a simulator, NOT an emulator.  There was a related
project at CMU called The Memulator which used Disksim to provide
timing-accuracy for a memory-based storage emulator:

http://www.pdl.cmu.edu/ftp/Storage/timing_abs.html

Memulator is not part of the Disksim code, but there is a snapshot
available: http://www.ece.cmu.edu/~griffin2/memulator-3.0-release.tar.gz.
 All the normal caveats apply to the code - it is unsupported, I
haven't actually used it myself, so unfortunately I can't give you any
help in getting it working.

-steve

On Mon, May 25, 2009 at 3:35 AM, Markus Wanner <markus at bluegap.ch> wrote:
> Hello Mark,
>
> Quoting "Mark DM" <markosjal at gmail.com>:
>>
>> My understanding of disksim is that id does more than measure that it
>> actually EMULATES the disk via a network and an interface such as SCSI or
>> IDE.
>
> No, it simulates the timings, but without any real data behind it. AFAIU
> disksim takes I/O access patterns and returns estimated timings for various
> storage systems (or single platters).
>
>> My intention is to actually emulate a disk via a network interface.
>
> Does that emulated disk require some sort of cycle accurate timings WRT some
> real disk or storage system? That's probably the only point where disksim
> could be of use for you.
>
>> What I am trying to determine is the hardware required to emulate an IDE
>> disk. Is any old IDE host controller usable for this?
>
> I don't consider an "old IDE host controller" to be an emulation. It's just
> an IDE controller. If it suffices, you don't need to emulate anything, do
> you?
>
> If you are really more into hardware, you might want to look at various VHDL
> or Verilog projects on OpenCores, they provide some sort of IDE (i.e. ATA)
> controller at [1].
>
> Regards
>
> Markus Wanner
>
>
> [1]: The ATA project at OpenCores:
> http://www.opencores.org/?do=project&who=ata
> _______________________________________________
> Disksim-users mailing list
> Disksim-users at ece.cmu.edu
> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>