def _iscsiadm_is_installed_locally(self):
LOG.info("Checking if iscsiadm tool is installed")
try:
local.run('iscsiadm --help &>/dev/null')
except local.LocalExecutionFailed:
msg = ("iscsiadm is not available on the local host. Please "
"install iscsiadm tool on the node you running on or "
"choose other cinder backend for migration. iscsiadm is "
"mandatory for migrations with EMC VMAX cinder backend")
LOG.error(msg)
raise exception.AbortMigrationError(msg)
def _iscsiadm_is_installed_locally(self):
LOG.info("Checking if iscsiadm tool is installed")
try:
local.run('iscsiadm --help &>/dev/null')
except local.LocalExecutionFailed:
msg = ("iscsiadm is not available on the local host. Please "
"install iscsiadm tool on the node you running on or "
"choose other cinder backend for migration. iscsiadm is "
"mandatory for migrations with EMC VMAX cinder backend")
LOG.error(msg)
raise exception.AbortMigrationError(msg)
def copy_bbcp(self, host, position):
"""
Check that the bbcp is installed on the host otherwise copy bbcp to
the host.
:param host: Host to which the bbcp will be copied
:param position: src or dst
"""
runner = self.runner(host, position)
LOG.debug("Checking if bbcp is installed on '%s' host", host)
cmd = "bbcp --help &>/dev/null"
try:
runner.run(cmd)
except remote_runner.RemoteExecutionError:
pass
else:
return
tmp_path = '/tmp/bbcp'
if position == 'src':
bbcp = CONF.bbcp.src_path
user = CONF.src.ssh_user
else:
bbcp = CONF.bbcp.dst_path
user = CONF.dst.ssh_user
LOG.debug("Copying %s to %s:/usr/local/bin/bbcp", bbcp, host)
cmd = "scp {cipher} -o {opts} {bbcp} {user}@{host}:{tmp}"
local.run(cmd.format(opts='StrictHostKeyChecking=no',
bbcp=bbcp,
user=user,
host=host,
tmp=tmp_path,
cipher=ssh_util.get_cipher_option()),
capture_output=False)
cmd = "mv {tmp} {path} && chmod 755 {path}"
runner.run(cmd, tmp=tmp_path, path=BBCP_PATH)
def remove_iscsi_device(dev_name):
path = "/sys/block/%s/device/delete" % dev_name.replace("/dev/", "")
if os.path.exists(path):
flush_device_io(dev_name)
local.run("echo 1 | sudo tee -a {path}".format(path=path))
def remove_iscsi_device(dev_name):
path = "/sys/block/%s/device/delete" % dev_name.replace("/dev/", "")
if os.path.exists(path):
flush_device_io(dev_name)
local.run("echo 1 | sudo tee -a {path}".format(path=path))