def attach_rfc4173(iname, rfc4173_spec):
""" Attach a disk given an initiator name, and spec in the following format:
"iscsi:"<targetip>":"<protocol>":"<port>":"<LUN>":"<targetname>
return disk, e.g. "/dev/sdb"
"""
try:
parts = rfc4173_spec.split(':',5)
assert(parts[0] == "iscsi")
targetip = parts[1]
port = parts[3]
lun = parts[4] and int(parts[4]) or 0
iqn = parts[5]
except:
raise IscsiDeviceException, "Cannot parse spec %s" % rfc4173_spec
if port:
targetip += ':%s' % port
# Attach to disk
if not os.path.exists("/etc/iscsi/initiatorname.iscsi"):
rv, iname = util.runCmd2([ '/sbin/iscsi-iname' ], with_stdout=True)
if rv:
raise RuntimeError, "/sbin/iscsi-iname failed"
open("/etc/iscsi/initiatorname.iscsi","w").write("InitiatorName=%s" % iname)
rv = util.runCmd2([ '/sbin/modprobe', 'iscsi_tcp' ])
if rv:
raise RuntimeError, "/sbin/modprobe iscsi_tcp failed"
try:
if not util.pidof('iscsid'):
fd = open("/etc/iscsi/initiatorname.iscsi", "w")
fd.write("InitiatorName=%s" % iname)
fd.close()
rv = util.runCmd2([ '/sbin/iscsid' ]) # start iscsiadm
if rv:
raise RuntimeError, "/sbin/iscsid failed"
rv = util.runCmd2([ '/sbin/iscsiadm', '-m', 'discovery', '-t', 'sendtargets', '-p', targetip])
if rv:
raise RuntimeError, "/sbin/iscsiadm -m discovery failed"
rv = util.runCmd2([ '/sbin/iscsiadm', '-m', 'node', '-T', iqn, '-p', targetip, '-l']) # login
if rv:
raise RuntimeError, "/sbin/iscsiadm -m node -l failed"
finally:
util.runCmd2([ '/sbin/udevsettle' ]) # update /dev
disk = rfc4173_to_disk(rfc4173_spec)
iscsi_disks.append(disk)
return disk
def attach_rfc4173(iname, rfc4173_spec):
""" Attach a disk given an initiator name, and spec in the following format:
"iscsi:"<targetip>":"<protocol>":"<port>":"<LUN>":"<targetname>
return disk, e.g. "/dev/sdb"
"""
try:
parts = rfc4173_spec.split(':',5)
assert(parts[0] == "iscsi")
targetip = parts[1]
port = parts[3]
lun = parts[4] and int(parts[4]) or 0
iqn = parts[5]
except:
raise IscsiDeviceException, "Cannot parse spec %s" % rfc4173_spec
if port:
targetip += ':%s' % port
# Attach to disk
if not os.path.exists("/etc/iscsi/initiatorname.iscsi"):
open("/etc/iscsi/initiatorname.iscsi","w").write("InitiatorName=%s" % iname)
rv = util.runCmd2([ '/sbin/modprobe', 'iscsi_tcp' ])
if rv:
raise RuntimeError, "/sbin/modprobe iscsi_tcp failed"
try:
if not util.pidof('iscsid'):
fd = open("/etc/iscsi/initiatorname.iscsi", "w")
fd.write("InitiatorName=%s" % iname)
fd.close()
rv = util.runCmd2([ '/sbin/iscsiadm', '-m', 'discovery', '-t', 'sendtargets', '-p', targetip])
if rv:
raise RuntimeError, "/sbin/iscsiadm -m discovery failed"
rv = util.runCmd2([ '/sbin/iscsiadm', '-m', 'node', '-T', iqn, '-p', targetip, '-l']) # login
if rv:
raise RuntimeError, "/sbin/iscsiadm -m node -l failed"
finally:
util.runCmd2(util.udevsettleCmd()) # update /dev
disk = rfc4173_to_disk(rfc4173_spec)
iscsi_disks.append(disk)
return disk
def release_ibft_disks():
if util.pidof('iscsid'):
util.runCmd2([ '/sbin/iscsiadm', '-m', 'session', '-u'])
util.runCmd2([ '/sbin/iscsiadm', '-k', '0'])
iscsi_disks = []
def release_ibft_disks():
if util.pidof('iscsid'):
util.runCmd2([ '/sbin/iscsiadm', '-m', 'session', '-u'])
util.runCmd2([ '/sbin/iscsiadm', '-k', '0'])
iscsi_disks = []