Back to the original question, I don't think Sagi was
asking if it was valid to do a legacy/unprotected READ,
it was what to expect with a protected READ on
unwritten blocks:
So this takes me to a corner I still don't understand, if
a LUN is pre-formatted as T10-protected, what happens to
On 1/10/2014 10:46 PM, Martin K. Petersen wrote:
Andy == Andy Grover agro...@redhat.com writes:
Andy Yes, don't you need FORMAT UNIT because protection information is
Andy going to mean the pi-enabled lun will need to report less blocks?
Modern disk drives won't shrink when you reformat them
On 1/10/2014 10:39 PM, Martin K. Petersen wrote:
Sagi == Sagi Grimberg sa...@mellanox.com writes:
Sagi What about FORMAT_UNIT emulation? The backstore protection
Sagi configuration is done at the target side via configfs/targetcli,
I don't know of any non-disk devices that actually implement
On 1/10/2014 10:39 PM, Martin K. Petersen wrote:
Sagi == Sagi Grimberg sa...@mellanox.com writes:
Sagi What about FORMAT_UNIT emulation? The backstore protection
Sagi configuration is done at the target side via configfs/targetcli,
I don't know of any non-disk devices that actually implement
Sagi == Sagi Grimberg sa...@dev.mellanox.co.il writes:
I don't know of any non-disk devices that actually implement FORMAT
UNIT. Usually such configuration is done using the array management
interface.
Sagi So this takes me to a corner I still don't understand, if a LUN is
Sagi pre-formatted
On 1/12/2014 2:33 PM, Martin K. Petersen wrote:
Sagi == Sagi Grimberg sa...@dev.mellanox.co.il writes:
I don't know of any non-disk devices that actually implement FORMAT
UNIT. Usually such configuration is done using the array management
interface.
Sagi So this takes me to a corner I still
Doug == Douglas Gilbert dgilb...@interlog.com writes:
So this takes me to a corner I still don't understand, if a LUN is
pre-formatted as T10-protected, what happens to unwritten blocks
read? I mean, SCSI login executes some reads from sevel LBAs which
will probably fail as blocks are
On 14-01-12 12:21 PM, Martin K. Petersen wrote:
Doug == Douglas Gilbert dgilb...@interlog.com writes:
So this takes me to a corner I still don't understand, if a LUN is
pre-formatted as T10-protected, what happens to unwritten blocks
read? I mean, SCSI login executes some reads from sevel
On 01/09/2014 10:21 PM, Nicholas A. Bellinger wrote:
What about FORMAT_UNIT emulation?
Would certainly be useful to have..
The backstore protection configuration is done at the target side via
configfs/targetcli, if you publish DIF support in
INQUERY_EVPD/READ_CAPACITY you need to accept
On Fri, 2014-01-10 at 11:50 -0800, Andy Grover wrote:
On 01/09/2014 10:21 PM, Nicholas A. Bellinger wrote:
What about FORMAT_UNIT emulation?
Would certainly be useful to have..
The backstore protection configuration is done at the target side via
configfs/targetcli, if you publish DIF
nab == Nicholas A Bellinger n...@daterainc.com writes:
nab This patch updates sbc_emulate_readcapacity_16() to set P_TYPE and
nab PROT_EN bits when DIF emulation is enabled by the backend device.
Reviewed-by: Martin K. Petersen martin.peter...@oracle.com
--
Martin K. Petersen Oracle
Sagi == Sagi Grimberg sa...@mellanox.com writes:
Sagi What about FORMAT_UNIT emulation? The backstore protection
Sagi configuration is done at the target side via configfs/targetcli,
I don't know of any non-disk devices that actually implement FORMAT
UNIT. Usually such configuration is done
nab == Nicholas A Bellinger n...@linux-iscsi.org writes:
The backstore protection configuration is done at the target side via
configfs/targetcli, if you publish DIF support in
INQUERY_EVPD/READ_CAPACITY you need to accept protection information
format?
nab Mmmm, these two bits bits are
Andy == Andy Grover agro...@redhat.com writes:
Andy Yes, don't you need FORMAT UNIT because protection information is
Andy going to mean the pi-enabled lun will need to report less blocks?
Modern disk drives won't shrink when you reformat them with PI. This is
a result of an IDEMA agreement
On 1/8/2014 10:36 PM, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@linux-iscsi.org
This patch updates sbc_emulate_readcapacity_16() to set
P_TYPE and PROT_EN bits when DIF emulation is enabled by
the backend device.
Cc: Martin K. Petersen martin.peter...@oracle.com
Cc: Christoph
On Thu, 2014-01-09 at 12:24 +0200, Sagi Grimberg wrote:
On 1/8/2014 10:36 PM, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@linux-iscsi.org
This patch updates sbc_emulate_readcapacity_16() to set
P_TYPE and PROT_EN bits when DIF emulation is enabled by
the backend device.
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