def readFromTarget(self):
"""See if we can read from the target"""
return runCmdWithOutput(["dd",
"if=" + self.dev,
"iflag=direct",
"of=/dev/null",
"skip=1",
"bs=4096",
"count=1"])
def writeToTarget(self):
"""See if we can write to the target (destructive!) """
return runCmdWithOutput(["dd",
"if=/dev/zero",
"of=" + self.dev,
"oflag=direct",
"bs=4096",
"skip=1",
"seek=1",
"count=1"])
def getDiskInquirySn(self):
"""Get the Disk Serial Number"""
res = runCmdWithOutput(["sg_inq", self.dev])
ret = None
if res.result == 0:
if "Unit serial number" in res.lines[-1]:
line = res.lines[-1]
ret = line.split()[-1]
log.debug("getDiskInquirySn(%s) -> %s" % (self.dev, ret))
return ret
def runSgCmdWithOutput(self, cmd):
"""Run the SG command on specified host"""
my_cmd = ["sg_persist", "-n"] + cmd + [self.dev]
return runCmdWithOutput(my_cmd)
def runTur(self):
"""Clear any UA by sending TUR"""
res = runCmdWithOutput(["sg_turs", self.dev])
return res.result