* scsi emulation - question
@ 2010-08-06 23:26 Janos Haar
2010-08-08 8:50 ` FUJITA Tomonori
0 siblings, 1 reply; 4+ messages in thread
From: Janos Haar @ 2010-08-06 23:26 UTC (permalink / raw)
To: linux-kernel
Hello list,
Sorry for this off-topic question, but i had no good idea where to ask.
I am looking for a solution wich can emulate SCSI device from a block device
like loop.
I need the sg device but not for special commands, but for reading and
writing only.
I have found only one solution until now, but i want to find better and
faster.
The actually working is ISCSI target and initiator in one pc.
But this opens up port, and makes a lot of IP packets even if i use lo for
this, wich is only a waste of time and resources.
Is there any solution for this allready?
Or somebody can help me where to search?
I am thinking to modify the ide-scsi to use blockdev instead of IDE
layer....
Thanks,
Janos Haar
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: scsi emulation - question
2010-08-08 8:50 ` FUJITA Tomonori
@ 2010-08-07 10:35 ` Janos Haar
2010-08-08 10:43 ` FUJITA Tomonori
0 siblings, 1 reply; 4+ messages in thread
From: Janos Haar @ 2010-08-07 10:35 UTC (permalink / raw)
To: FUJITA Tomonori; +Cc: linux-kernel
Hi,
Thanks for the tip.
I have not used this before.
But now i have readed the documentation, and for me it looks like scsi-debug
can work only in RAM and can make only volatile drives.
Have i missed someting? :-)
Thanks,
Janos Haar
----- Original Message -----
From: "FUJITA Tomonori" <fujita.tomonori@lab.ntt.co.jp>
To: <janos.haar@netcenter.hu>
Cc: <linux-kernel@vger.kernel.org>
Sent: Sunday, August 08, 2010 10:50 AM
Subject: Re: scsi emulation - question
> On Sat, 7 Aug 2010 01:26:45 +0200
> "Janos Haar" <janos.haar@netcenter.hu> wrote:
>
>> I am looking for a solution wich can emulate SCSI device from a block
>> device
>> like loop.
>> I need the sg device but not for special commands, but for reading and
>> writing only.
>> I have found only one solution until now, but i want to find better and
>> faster.
>> The actually working is ISCSI target and initiator in one pc.
>> But this opens up port, and makes a lot of IP packets even if i use lo
>> for
>> this, wich is only a waste of time and resources.
>
> scsi-debug should work for you.
> --
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: scsi emulation - question
2010-08-06 23:26 scsi emulation - question Janos Haar
@ 2010-08-08 8:50 ` FUJITA Tomonori
2010-08-07 10:35 ` Janos Haar
0 siblings, 1 reply; 4+ messages in thread
From: FUJITA Tomonori @ 2010-08-08 8:50 UTC (permalink / raw)
To: janos.haar; +Cc: linux-kernel
On Sat, 7 Aug 2010 01:26:45 +0200
"Janos Haar" <janos.haar@netcenter.hu> wrote:
> I am looking for a solution wich can emulate SCSI device from a block device
> like loop.
> I need the sg device but not for special commands, but for reading and
> writing only.
> I have found only one solution until now, but i want to find better and
> faster.
> The actually working is ISCSI target and initiator in one pc.
> But this opens up port, and makes a lot of IP packets even if i use lo for
> this, wich is only a waste of time and resources.
scsi-debug should work for you.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: scsi emulation - question
2010-08-07 10:35 ` Janos Haar
@ 2010-08-08 10:43 ` FUJITA Tomonori
0 siblings, 0 replies; 4+ messages in thread
From: FUJITA Tomonori @ 2010-08-08 10:43 UTC (permalink / raw)
To: janos.haar; +Cc: fujita.tomonori, linux-kernel
On Sat, 7 Aug 2010 12:35:14 +0200
"Janos Haar" <janos.haar@netcenter.hu> wrote:
> But now i have readed the documentation, and for me it looks like scsi-debug
> can work only in RAM and can make only volatile drives.
Yes. If you store data to a file, a device, etc, iSCSI is the only
option.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-08-08 10:43 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2010-08-06 23:26 scsi emulation - question Janos Haar
2010-08-08 8:50 ` FUJITA Tomonori
2010-08-07 10:35 ` Janos Haar
2010-08-08 10:43 ` FUJITA Tomonori
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