I_T Nexus reset TMF clarification

Hannes Reinecke hare at suse.de
Thu Mar 21 08:47:24 PDT 2013

* From the T10 Reflector (t10 at t10.org), posted by:
* Hannes Reinecke <hare at suse.de>
Hi all,
SAM-5 states in section 7.6 (I_T Nexus reset):
 > Each logical unit accessible through the SCSI target port shall
 > perform the I_T nexus loss functions specified in
 > 6.3.4 for the I_T nexus on which the function request
 > was received, then:
Typically, when an I_T Nexus loss occurs the initiator can not
reach the target anymore. Depending on the transport, neither
side might be able to detect this condition automatically.
Hence the target might not be able to receive the TMF, nor
send a command completion.
So how is I_T nexus reset TMF supposed to be implemented?
As an ex-post TMF to be send after the I_T nexus has been
Thanks for the clarification.
Dr. Hannes Reinecke		      zSeries & Storage
hare at suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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