Re: [Iscsitarget-devel] Iscsitarget-devel Digest, Vol 70, Issue 6

[vgrvelu]

Hi 

In case of  SLES machine, LUN 0 is not detected. It looks like by default SLES creates LUN 0.

Rajan

On Sun, Mar 18, 2012 at 5:52 AM, <iscsitarget-...@lists.sourceforge.net> wrote:

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Today's Topics:

  1. Re: IET chunk + ESXI5 (Ross S. W. Walker)
  2. Re: IET chunk + ESXI5 (Yucong Sun (???))
  3. Re: IET chunk + ESXI5 (Ross S. W. Walker)


----------------------------------------------------------------------

Message: 1
Date: Sat, 17 Mar 2012 19:51:13 -0400
From: "Ross S. W. Walker" <RWa...@medallion.com>
Subject: Re: [Iscsitarget-devel] IET chunk + ESXI5
To:  Yucong Sun (???)  <suny...@gmail.com>
Cc: iscsitarget-devel <iscsitar...@lists.sourceforge.net>,
       Emmanuel Florac <efl...@intellique.com>
Message-ID: <B17D5FF9-FA6F-4065...@medallion.com>
Content-Type: text/plain; charset="utf-8"

Ahh, problem is ScsiSN must be globally unique between all disks.

ESXi thinks they are two paths to the same disk with that config.

-Ross


On Mar 17, 2012, at 7:48 PM, "Yucong Sun (???)" <suny...@gmail.com> wrote:

> The problem is I have 2 machines that configured as such:
>
> Target iqn.2009-10.com.outofwall:vstore1
>         Lun 1 Path=/dev/sdb,Type=fileio,ScsiId=vstore1,ScsiSN=1,IOMode=wt
>
> Target iqn.2010-09.com.outofwall:vstore2
>         Lun 0 Path=/dev/sdb,Type=fileio,ScsiId=vstore2,ScsiSN=1,IOMode=wt
>
> and if I use the same Lun 0 , ESXi will think they are the same device address
>
> t10.94545xxxxxxxxx 673747F627516<LUN number>3000000000
>
> I couldn't figure out how to make it not appear to be same address, so
> I resorted to Lun number difference. what did I do wrong?
>
>
> On Sat, Mar 17, 2012 at 4:40 PM, Ross S. W. Walker
> <RWa...@medallion.com> wrote:
> > I would definitely make it LUN 0 as there cannot exist a LUN 1 without a LUN
> > 0 per the SCSI spec.
> >
> > -Ross
> >
> >
> > On Mar 17, 2012, at 7:36 PM, "Yucong Sun (???)" <suny...@gmail.com> wrote:
> >
> > I only have a single target and single LUN, the problem is
> >
> > for example , this target only have LUN 1 (no lun 0) , but somehow
> > esxi is blocked by trying to issue command to LUN0,  The similiar
> > things happens on another machine which only have LUN 0 configured but
> >  esxi starts to send traffic to LUN0, what could possibly be the
> > problem?
> >
> > [88410.868981] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
> > sid:283674003964416 (Unknown LUN)
> > [88412.880949] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
> > sid:283674003964416 (Unknown LUN)
> > [88414.892930] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
> > sid:283674003964416 (Unknown LUN)
> >
> > Cheers.
> >
> > On Sat, Mar 17, 2012 at 3:49 AM, Emmanuel Florac <efl...@intellique.com>
> > wrote:
> >> Le Fri, 16 Mar 2012 15:56:37 -0700 vous ?criviez:
> >>
> >>> I'm running trunk .
> >>>
> >>
> >> OK, I've made a new fresh install this week that should be connected to
> >> an ESXi 5 host, I'll see if anything similar happens. Are you using
> >> multiple targets, and do you have multiple LUNs on each target?
> >>
> >> --
> >> ------------------------------------------------------------------------
> >> Emmanuel Florac     |   Direction technique
> >>                    |   Intellique
> >>                    |   <efl...@intellique.com>
> >>                    |   +33 1 78 94 84 02
> >> ------------------------------------------------------------------------
> >
> > ------------------------------------------------------------------------------
> > This SF email is sponsosred by:
> > Try Windows Azure free for 90 days Click Here
> > http://p.sf.net/sfu/sfd2d-msazure
> > _______________________________________________
> > Iscsitarget-devel mailing list
> > Iscsitar...@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel
> >
> >
> > ________________________________
> > This e-mail, and any attachments thereto, is intended only for use by the
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Message: 2
Date: Sat, 17 Mar 2012 16:53:44 -0700
From: Yucong Sun (???) <suny...@gmail.com>
Subject: Re: [Iscsitarget-devel] IET chunk + ESXI5
To: "Ross S. W. Walker" <RWa...@medallion.com>
Cc: iscsitarget-devel <iscsitar...@lists.sourceforge.net>,
       Emmanuel Florac <efl...@intellique.com>
Message-ID:
       <CAJygYd12_WF_bcjH9KeEbpJ0...@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

ahhh, I would try re-configure them right away today, But this doesn't
really explain the mysteriousness of unknown LUN commands.

And for most time, my current approach actually works fine.

On Sat, Mar 17, 2012 at 4:51 PM, Ross S. W. Walker
<RWa...@medallion.com> wrote:
> Ahh, problem is ScsiSN must be globally unique between all disks.
>
> ESXi thinks they are two paths to the same disk with that config.
>
> -Ross
>
>
> On Mar 17, 2012, at 7:48 PM, "Yucong Sun (???)" <suny...@gmail.com> wrote:
>
> The problem is I have 2 machines that configured as such:
>
> Target iqn.2009-10.com.outofwall:vstore1
> ??????? Lun 1 Path=/dev/sdb,Type=fileio,ScsiId=vstore1,ScsiSN=1,IOMode=wt
>
> Target iqn.2010-09.com.outofwall:vstore2
> ??????? Lun 0 Path=/dev/sdb,Type=fileio,ScsiId=vstore2,ScsiSN=1,IOMode=wt
>
> and if I use the same Lun 0 , ESXi will think they are the same device
> address
>
> t10.94545xxxxxxxxx 673747F627516<LUN number>3000000000
>
> I couldn't figure out how to make it not appear to be same address, so
> I resorted to Lun number difference. what did I do wrong?
>
>
> On Sat, Mar 17, 2012 at 4:40 PM, Ross S. W. Walker
> <RWa...@medallion.com> wrote:
>> I would definitely make it LUN 0 as there cannot exist a LUN 1 without a
>> LUN
>> 0 per the SCSI spec.
>>
>> -Ross
>>
>>
>> On Mar 17, 2012, at 7:36 PM, "Yucong Sun (???)" <suny...@gmail.com>
>> wrote:
>>
>> I only have a single target and single LUN, the problem is
>>
>> for example , this target only have LUN 1 (no lun 0) , but somehow
>> esxi is blocked by trying to issue command to LUN0,? The similiar
>> things happens on another machine which only have LUN 0 configured but
>> ?esxi starts to send traffic to LUN0, what could possibly be the
>> problem?
>>
>> [88410.868981] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
>> sid:283674003964416 (Unknown LUN)
>> [88412.880949] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
>> sid:283674003964416 (Unknown LUN)
>> [88414.892930] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
>> sid:283674003964416 (Unknown LUN)
>>
>> Cheers.
>>
>> On Sat, Mar 17, 2012 at 3:49 AM, Emmanuel Florac <efl...@intellique.com>
>> wrote:
>>> Le Fri, 16 Mar 2012 15:56:37 -0700 vous ?criviez:
>>>
>>>> I'm running trunk .
>>>>
>>>
>>> OK, I've made a new fresh install this week that should be connected to
>>> an ESXi 5 host, I'll see if anything similar happens. Are you using
>>> multiple targets, and do you have multiple LUNs on each target?
>>>
>>> --
>>> ------------------------------------------------------------------------
>>> Emmanuel Florac ? ? | ? Direction technique
>>> ? ? ? ? ? ? ? ? ? ?| ? Intellique
>>> ? ? ? ? ? ? ? ? ? ?| ? <efl...@intellique.com>
>>> ? ? ? ? ? ? ? ? ? ?| ? +33 1 78 94 84 02
>>> ------------------------------------------------------------------------
>>
>>
>> ------------------------------------------------------------------------------
>> This SF email is sponsosred by:
>> Try Windows Azure free for 90 days Click Here
>> http://p.sf.net/sfu/sfd2d-msazure
>> _______________________________________________
>> Iscsitarget-devel mailing list
>> Iscsitar...@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel
>>
>>
>> ________________________________
>> This e-mail, and any attachments thereto, is intended only for use by the
>> addressee(s) named herein and may contain legally privileged and/or
>> confidential information. If you are not the intended recipient of this
>> e-mail, you are hereby notified that any dissemination, distribution or
>> copying of this e-mail, and any attachments thereto, is strictly
>> prohibited.
>> If you have received this e-mail in error, please immediately notify the
>> sender and permanently delete the original and any copy or printout
>> thereof.
>
>
> ________________________________
> This e-mail, and any attachments thereto, is intended only for use by the
> addressee(s) named herein and may contain legally privileged and/or
> confidential information. If you are not the intended recipient of this
> e-mail, you are hereby notified that any dissemination, distribution or
> copying of this e-mail, and any attachments thereto, is strictly prohibited.
> If you have received this e-mail in error, please immediately notify the
> sender and permanently delete the original and any copy or printout thereof.



------------------------------

Message: 3
Date: Sat, 17 Mar 2012 20:20:50 -0400
From: "Ross S. W. Walker" <RWa...@medallion.com>
Subject: Re: [Iscsitarget-devel] IET chunk + ESXI5
To:  Yucong Sun (???)  <suny...@gmail.com>
Cc: iscsitarget-devel <iscsitar...@lists.sourceforge.net>,
       Emmanuel Florac <efl...@intellique.com>
Message-ID: <E1389D3A-CDB7-4C11...@medallion.com>
Content-Type: text/plain; charset="utf-8"

Well the results are undefined if two disks from different targets with different LUNs have the same ScsiSN, so no one can say if explains or doesn't explain.

-Ross


On Mar 17, 2012, at 7:54 PM, "Yucong Sun (???)" <suny...@gmail.com> wrote:

> ahhh, I would try re-configure them right away today, But this doesn't
> really explain the mysteriousness of unknown LUN commands.
>
> And for most time, my current approach actually works fine.
>
> On Sat, Mar 17, 2012 at 4:51 PM, Ross S. W. Walker
> <RWa...@medallion.com> wrote:
> > Ahh, problem is ScsiSN must be globally unique between all disks.
> >
> > ESXi thinks they are two paths to the same disk with that config.
> >
> > -Ross
> >
> >
> > On Mar 17, 2012, at 7:48 PM, "Yucong Sun (???)" <suny...@gmail.com> wrote:
> >
> > The problem is I have 2 machines that configured as such:
> >
> > Target iqn.2009-10.com.outofwall:vstore1
> >         Lun 1 Path=/dev/sdb,Type=fileio,ScsiId=vstore1,ScsiSN=1,IOMode=wt
> >
> > Target iqn.2010-09.com.outofwall:vstore2
> >         Lun 0 Path=/dev/sdb,Type=fileio,ScsiId=vstore2,ScsiSN=1,IOMode=wt
> >
> > and if I use the same Lun 0 , ESXi will think they are the same device
> > address
> >
> > t10.94545xxxxxxxxx 673747F627516<LUN number>3000000000
> >
> > I couldn't figure out how to make it not appear to be same address, so
> > I resorted to Lun number difference. what did I do wrong?
> >
> >
> > On Sat, Mar 17, 2012 at 4:40 PM, Ross S. W. Walker
> > <RWa...@medallion.com> wrote:
> >> I would definitely make it LUN 0 as there cannot exist a LUN 1 without a
> >> LUN
> >> 0 per the SCSI spec.
> >>
> >> -Ross
> >>
> >>
> >> On Mar 17, 2012, at 7:36 PM, "Yucong Sun (???)" <suny...@gmail.com>
> >> wrote:
> >>
> >> I only have a single target and single LUN, the problem is
> >>
> >> for example , this target only have LUN 1 (no lun 0) , but somehow
> >> esxi is blocked by trying to issue command to LUN0,  The similiar
> >> things happens on another machine which only have LUN 0 configured but
> >>  esxi starts to send traffic to LUN0, what could possibly be the
> >> problem?
> >>
> >> [88410.868981] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
> >> sid:283674003964416 (Unknown LUN)
> >> [88412.880949] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
> >> sid:283674003964416 (Unknown LUN)
> >> [88414.892930] iscsi_trgt: Abort Task (01) issued on tid:1 lun:0 by
> >> sid:283674003964416 (Unknown LUN)
> >>
> >> Cheers.
> >>
> >> On Sat, Mar 17, 2012 at 3:49 AM, Emmanuel Florac <efl...@intellique.com>
> >> wrote:
> >>> Le Fri, 16 Mar 2012 15:56:37 -0700 vous ?criviez:
> >>>
> >>>> I'm running trunk .
> >>>>
> >>>
> >>> OK, I've made a new fresh install this week that should be connected to
> >>> an ESXi 5 host, I'll see if anything similar happens. Are you using
> >>> multiple targets, and do you have multiple LUNs on each target?
> >>>
> >>> --
> >>> ------------------------------------------------------------------------
> >>> Emmanuel Florac     |   Direction technique
> >>>                    |   Intellique
> >>>                    |   <efl...@intellique.com>
> >>>                    |   +33 1 78 94 84 02
> >>> ------------------------------------------------------------------------
> >>
> >>
> >> ------------------------------------------------------------------------------
> >> This SF email is sponsosred by:
> >> Try Windows Azure free for 90 days Click Here
> >> http://p.sf.net/sfu/sfd2d-msazure
> >> _______________________________________________
> >> Iscsitarget-devel mailing list
> >> Iscsitar...@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel
> >>
> >>
> >> ________________________________
> >> This e-mail, and any attachments thereto, is intended only for use by the
> >> addressee(s) named herein and may contain legally privileged and/or
> >> confidential information. If you are not the intended recipient of this
> >> e-mail, you are hereby notified that any dissemination, distribution or
> >> copying of this e-mail, and any attachments thereto, is strictly
> >> prohibited.
> >> If you have received this e-mail in error, please immediately notify the
> >> sender and permanently delete the original and any copy or printout
> >> thereof.
> >
> >
> > ________________________________
> > This e-mail, and any attachments thereto, is intended only for use by the
> > addressee(s) named herein and may contain legally privileged and/or
> > confidential information. If you are not the intended recipient of this
> > e-mail, you are hereby notified that any dissemination, distribution or
> > copying of this e-mail, and any attachments thereto, is strictly prohibited.
> > If you have received this e-mail in error, please immediately notify the
> > sender and permanently delete the original and any copy or printout thereof.
______________________________________________________________________
This e-mail, and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail, you are hereby notified that any dissemination,
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is strictly prohibited. If you have received this e-mail in error,
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End of Iscsitarget-devel Digest, Vol 70, Issue 6
************************************************

--
A.V.Gomathirajan
M.S Research (Entrepreneurship)
Indian Institute of Technology Madras