SAS STP: maintaining affiliations through SATA/SAS changes

Elliott, Robert (Server Storage) Elliott at hp.com
Wed Jan 29 14:14:16 PST 2003


* From the T10 Reflector (t10 at t10.org), posted by:
* "Elliott, Robert (Server Storage)" <Elliott at hp.com>
*
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The current text in 9.3.2 indicates STP affiliations are maintained
until expander power off, SMP PHY CONTROL requests to change them, or
CLOSE (CLEAR AFFILIATION).

It specifically mentions that link reset sequences (e.g. from removing
the SATA device) do not change affiliations.=20

If a SATA device is pulled and a SAS port shows up in its place, do we
want the expander to continue maintaining the affiliation?  It =
obviously
should not not block OPENs headed to the SAS port.  If the SAS port is
removed and a SATA device is put back, should the affiliation still be
there?


--=20
Rob Elliott, elliott at hp.com=20
Hewlett-Packard Industry Standard Server Storage Advanced Technology=20
 <https://ecardfile.com/id/RobElliott>
https://ecardfile.com/id/RobElliott=20




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SAS STP: maintaining affiliations through SATA/SAS = changes The current text in 9.3.2 indicates = STP affiliations are maintained until expander power off, SMP PHY = CONTROL requests to change them, or CLOSE (CLEAR = AFFILIATION). It specifically mentions that link = reset sequences (e.g. from removing the SATA device) do not change = affiliations. If a SATA device is pulled and a SAS = port shows up in its place, do we want the expander to continue = maintaining the affiliation?  It obviously should not not block = OPENs headed to the SAS port.  If the SAS port is removed and a = SATA device is put back, should the affiliation still be = there? 
-- 
Rob Elliott, elliott at hp.com 
Hewlett-Packard Industry Standard = Server Storage Advanced Technology 
https://ecardfile.com/id/RobElliott 


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