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 > unwritten blocks read? So the precise answer is: the PI will be all 0xff bytes, unless logical provisioning is enabled, LBPRZ=0 and the device's compliance predates sbc3r34.pdf (November 2012). Doug Gilbert
Thanks Doug, This answer translates directly into a fix in my T10-PI offload API. Sagi. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
