[Iscsitarget-devel] VMware ESX KB article
John Jore
Does anyone know if this KB article is accurate? http://kb.vmware.com/kb/1026596
And if yes, are there any plans on addressing the issues? #3 does not look good. At all.
If no, what version of IET should have resolved the issue?
-- Snip ---
When using OpenFiler to present iSCSI Storage to an ESX environment, you may experience these symptoms:
*Frequent SCSI Reservation Conflicts reported in the VMkernel logs
*Hosts become unresponsive to vCenter Server, vSphere Client, and SSH sessions
*Data corruption on the VMFS Volume
-- Snip ---
OpenFiler uses IET which has the following caveats:
*Does not support SCSI Reservations.
*Inquiry commands do not conform to SCSI Specification.
-- Snip ---
Regards,
John Jore
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Ross S. W. Walker
> Dear developers,
>
> Does anyone know if this KB article is accurate? http://kb.vmware.com/kb/1026596
>
> And if yes, are there any plans on addressing the issues? #3 does not look good. At all.
> If no, what version of IET should have resolved the issue?
>
>
> -- Snip ---
> When using OpenFiler to present iSCSI Storage to an ESX environment, you may experience these symptoms:
> *Frequent SCSI Reservation Conflicts reported in the VMkernel logs
> *Hosts become unresponsive to vCenter Server, vSphere Client, and SSH sessions
> *Data corruption on the VMFS Volume
> -- Snip ---
> OpenFiler uses IET which has the following caveats:
> *Does not support SCSI Reservations.
IET does SCSI Reservations for many versions now.
> *Inquiry commands do not conform to SCSI Specification.
I don't know what they are talking about here. Last I tested IET's handling of inquiry page 0x80 and 0x83 are compliant.
They must have tested against a 4+ year old version of the software before SCSI reservations or inquiry page 0x80 support.
-Ross
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Ross S. W. Walker
> On Feb 6, 2012, at 7:54 PM, "John Jore" <jo...@jore.no> wrote:
>
> > Dear developers,
> >
> > Does anyone know if this KB article is accurate?
> http://kb.vmware.com/kb/1026596
> >
> > And if yes, are there any plans on addressing the issues?
> #3 does not look good. At all.
> > If no, what version of IET should have resolved the issue?
> >
> >
> > -- Snip ---
> > When using OpenFiler to present iSCSI Storage to an ESX environment,
you may experience these symptoms:
> > *Frequent SCSI Reservation Conflicts reported in the VMkernel logs
> > *Hosts become unresponsive to vCenter Server, vSphere Client, and
SSH sessions
> > *Data corruption on the VMFS Volume
> > -- Snip ---
> > OpenFiler uses IET which has the following caveats:
> > *Does not support SCSI Reservations.
>
> IET does SCSI Reservations for many versions now.
>
> > *Inquiry commands do not conform to SCSI Specification.
>
> I don't know what they are talking about here. Last I tested
> IET's handling of inquiry page 0x80 and 0x83 are compliant.
>
> They must have tested against a 4+ year old version of the
> software before SCSI reservations or inquiry page 0x80 support.
For the record:
SCSI reservations
------------------------------------------------------------------------
r78 | tomo | 2006-12-07 18:53:02 -0500 (Thu, 07 Dec 2006) | 4 lines
Add RELEASE/RESERVE support (without 3rd party reservations).
Signed-off-by: Juhani Rautiainen <jra...@iki.fi>
------------------------------------------------------------------------
And inquiry page 0x80
------------------------------------------------------------------------
r75 | tomo | 2006-12-04 23:18:55 -0500 (Mon, 04 Dec 2006) | 2 lines
Add ScsiSN option for VPD page 0x80 (from Steffen Plotner)
------------------------------------------------------------------------
These appeared in IET release 0.4.15 in April 2007.
Maybe this was true in an old old version of Openfiler.