Ejemplo n.º 1
0
    def _LUNprint(self, sr_uuid):
        if self.iscsi.attached:
            # Force a rescan on the bus.
            self.iscsi.refresh()


#            time.sleep(5)
# Now call attach (handles the refcounting + session activa)
        self.iscsi.attach(sr_uuid)

        util.SMlog("LUNprint: waiting for path: %s" % self.iscsi.path)
        if util.wait_for_path("%s/LUN*" % self.iscsi.path,
                              ISCSISR.MAX_TIMEOUT):
            try:
                adapter = self.iscsi.adapter[self.iscsi.address]
                util.SMlog("adapter=%s" % adapter)

                # find a scsi device on which to issue a report luns command:
                devs = glob.glob("%s/LUN*" % self.iscsi.path)
                sgdevs = []
                for i in devs:
                    sgdevs.append(int(i.split("LUN")[1]))
                sgdevs.sort()
                sgdev = "%s/LUN%d" % (self.iscsi.path, sgdevs[0])

                # issue a report luns:
                luns = util.pread2(["/usr/bin/sg_luns", "-q",
                                    sgdev]).split('\n')
                nluns = len(
                    luns) - 1  # remove the line relating to the final \n
                # check if the LUNs are MPP-RDAC Luns
                scsi_id = scsiutil.getSCSIid(sgdev)
                mpp_lun = False
                if (mpp_luncheck.is_RdacLun(scsi_id)):
                    mpp_lun = True
                    link = glob.glob('/dev/disk/by-scsibus/%s-*' % scsi_id)
                    mpp_adapter = link[0].split('/')[-1].split('-')[-1].split(
                        ':')[0]

                # make sure we've got that many sg devices present
                for i in range(0, 30):
                    luns = scsiutil._dosgscan()
                    sgdevs = filter(lambda r: r[1] == adapter, luns)
                    if mpp_lun:
                        sgdevs.extend(
                            filter(lambda r: r[1] == mpp_adapter, luns))
                    if len(sgdevs) >= nluns:
                        util.SMlog("Got all %d sg devices" % nluns)
                        break
                    else:
                        util.SMlog("Got %d sg devices - expecting %d" %
                                   (len(sgdevs), nluns))
                        time.sleep(1)

                util.pread2(["/sbin/udevsettle"])
            except:
                pass  # Make sure we don't break the probe...

        self.iscsi.print_LUNs()
        self.iscsi.detach(sr_uuid)
Ejemplo n.º 2
0
    def _LUNprint(self, sr_uuid):
        if self.iscsi.attached:
            # Force a rescan on the bus.
            self.iscsi.refresh()
#            time.sleep(5)
        # Now call attach (handles the refcounting + session activa)
        self.iscsi.attach(sr_uuid)

        util.SMlog("LUNprint: waiting for path: %s" % self.iscsi.path)
        if util.wait_for_path("%s/LUN*" % self.iscsi.path, ISCSISR.MAX_TIMEOUT):
            try:
                adapter=self.iscsi.adapter[self.iscsi.address]
                util.SMlog("adapter=%s" % adapter)

                # find a scsi device on which to issue a report luns command:
                devs=glob.glob("%s/LUN*" % self.iscsi.path)
                sgdevs = []
                for i in devs:
                    sgdevs.append(int(i.split("LUN")[1]))
                sgdevs.sort()
                sgdev = "%s/LUN%d" % (self.iscsi.path,sgdevs[0])                

                # issue a report luns:
                luns=util.pread2(["/usr/bin/sg_luns","-q",sgdev]).split('\n')
                nluns=len(luns)-1 # remove the line relating to the final \n
                # check if the LUNs are MPP-RDAC Luns
                scsi_id = scsiutil.getSCSIid(sgdev)
                mpp_lun = False
                if (mpp_luncheck.is_RdacLun(scsi_id)):
                    mpp_lun = True
                    link=glob.glob('/dev/disk/by-scsibus/%s-*' % scsi_id)
                    mpp_adapter = link[0].split('/')[-1].split('-')[-1].split(':')[0]

                # make sure we've got that many sg devices present
                for i in range(0,30): 
                    luns=scsiutil._dosgscan()
                    sgdevs=filter(lambda r: r[1]==adapter, luns)
                    if mpp_lun:
                        sgdevs.extend(filter(lambda r: r[1]==mpp_adapter, luns))
                    if len(sgdevs)>=nluns:
                        util.SMlog("Got all %d sg devices" % nluns)
                        break
                    else:
                        util.SMlog("Got %d sg devices - expecting %d" % (len(sgdevs),nluns))
                        time.sleep(1)

                if os.path.exists("/sbin/udevsettle"):
                    util.pread2(["/sbin/udevsettle"])
                else:
                    util.pread2(["/sbin/udevadm","settle"])
            except:
                util.SMlog("Generic exception caught. Pass")
                pass # Make sure we don't break the probe...

        self.iscsi.print_LUNs()
        self.iscsi.detach(sr_uuid)        
Ejemplo n.º 3
0
    def _LUNprint(self, sr_uuid):
        if self.iscsi.attached:
            # Force a rescan on the bus.
            self.iscsi.refresh()
#            time.sleep(5)
        # Now call attach (handles the refcounting + session activa)
        self.iscsi.attach(sr_uuid)

        util.SMlog("LUNprint: waiting for path: %s" % self.iscsi.path)
        if util.wait_for_path("%s/LUN*" % self.iscsi.path, BaseISCSI.MAX_TIMEOUT):
            try:
                adapter=self.iscsi.adapter[self.iscsi.address]
                util.SMlog("adapter=%s" % adapter)

                # find a scsi device on which to issue a report luns command:
                devs=glob.glob("%s/LUN*" % self.iscsi.path)
                sgdevs = []
                for i in devs:
                    sgdevs.append(int(i.split("LUN")[1]))
                sgdevs.sort()
                sgdev = "%s/LUN%d" % (self.iscsi.path,sgdevs[0])                

                # issue a report luns:
                luns=util.pread2(["/usr/bin/sg_luns","-q",sgdev]).split('\n')
                nluns=len(luns)-1 # remove the line relating to the final \n
                # check if the LUNs are MPP-RDAC Luns
                scsi_id = scsiutil.getSCSIid(sgdev)

                # make sure we've got that many sg devices present
                for i in range(0,30): 
                    luns=scsiutil._dosgscan()
                    sgdevs=filter(lambda r: r[1]==adapter, luns)
                    if len(sgdevs)>=nluns:
                        util.SMlog("Got all %d sg devices" % nluns)
                        break
                    else:
                        util.SMlog("Got %d sg devices - expecting %d" % (len(sgdevs),nluns))
                        time.sleep(1)

                util.pread2(["/sbin/udevsettle"])
            except:
                pass # Make sure we don't break the probe...

        self.iscsi.print_LUNs()
        self.iscsi.detach(sr_uuid)