def findUnderlyingStorage(devPath):
# make sure device exists and is accessible
os.stat(devPath)
sessions = []
try:
devs = devicemapper.getSlaves(os.path.basename(devPath))
except:
devs = [os.path.basename(devPath)]
for realDev in devs:
if not devicemapper.isVirtualDevice(realDev):
sessions.append(getiScsiSession(realDev))
continue
for slave in devicemapper.getSlaves(realDev):
sessions.extend(findUnderlyingStorage(os.path.join("/dev", slave)))
return sessions
def _resize_if_needed(guid):
name = devicemapper.getDmId(guid)
slaves = [(slave, getDeviceSize(slave))
for slave in devicemapper.getSlaves(name)]
if len(slaves) == 0:
log.warning("Map %r has no slaves" % guid)
return False
if len(set(size for slave, size in slaves)) != 1:
raise Error("Map %r slaves size differ %s" % (guid, slaves))
map_size = getDeviceSize(name)
slave_size = slaves[0][1]
if map_size == slave_size:
return False
log.info("Resizing map %r (map_size=%d, slave_size=%d)",
guid, map_size, slave_size)
supervdsm.getProxy().resizeMap(name)
return True
def _resize_if_needed(guid):
name = devicemapper.getDmId(guid)
slaves = [(slave, getDeviceSize(slave))
for slave in devicemapper.getSlaves(name)]
if len(slaves) == 0:
log.warning("Map %r has no slaves" % guid)
return False
if len(set(size for slave, size in slaves)) != 1:
raise Error("Map %r slaves size differ %s" % (guid, slaves))
map_size = getDeviceSize(name)
slave_size = slaves[0][1]
if map_size == slave_size:
return False
log.info("Resizing map %r (map_size=%d, slave_size=%d)",
guid, map_size, slave_size)
supervdsm.getProxy().resizeMap(name)
return True
def pathListIter(filterGuids=()):
filterLen = len(filterGuids) if filterGuids else -1
devsFound = 0
knownSessions = {}
svdsm = supervdsm.getProxy()
pathStatuses = devicemapper.getPathsStatus()
for dmId, guid in getMPDevsIter():
if devsFound == filterLen:
break
if filterGuids and guid not in filterGuids:
continue
devsFound += 1
devInfo = {
"guid": guid,
"dm": dmId,
"capacity": str(getDeviceSize(dmId)),
"serial": svdsm.getScsiSerial(dmId),
"paths": [],
"connections": [],
"devtypes": [],
"devtype": "",
"vendor": "",
"product": "",
"fwrev": "",
"logicalblocksize": "",
"physicalblocksize": "",
"discard_max_bytes": getDeviceDiscardMaxBytes(dmId),
"discard_zeroes_data": getDeviceDiscardZeroesData(dmId),
}
for slave in devicemapper.getSlaves(dmId):
if not devicemapper.isBlockDevice(slave):
log.warning("No such physdev '%s' is ignored" % slave)
continue
if not devInfo["vendor"]:
try:
devInfo["vendor"] = getVendor(slave)
except Exception:
log.warn("Problem getting vendor from device `%s`",
slave, exc_info=True)
if not devInfo["product"]:
try:
devInfo["product"] = getModel(slave)
except Exception:
log.warn("Problem getting model name from device `%s`",
slave, exc_info=True)
if not devInfo["fwrev"]:
try:
devInfo["fwrev"] = getFwRev(slave)
except Exception:
log.warn("Problem getting fwrev from device `%s`",
slave, exc_info=True)
if (not devInfo["logicalblocksize"] or
not devInfo["physicalblocksize"]):
try:
logBlkSize, phyBlkSize = getDeviceBlockSizes(slave)
devInfo["logicalblocksize"] = str(logBlkSize)
devInfo["physicalblocksize"] = str(phyBlkSize)
except Exception:
log.warn("Problem getting blocksize from device `%s`",
slave, exc_info=True)
pathInfo = {}
pathInfo["physdev"] = slave
pathInfo["state"] = pathStatuses.get(slave, "failed")
pathInfo["capacity"] = str(getDeviceSize(slave))
try:
hbtl = getHBTL(slave)
except OSError as e:
if e.errno == errno.ENOENT:
log.warn("Device has no hbtl: %s", slave)
pathInfo["lun"] = 0
else:
log.error("Error: %s while trying to get hbtl of device: "
"%s", str(e.message), slave)
raise
else:
pathInfo["lun"] = hbtl.lun
if iscsi.devIsiSCSI(slave):
devInfo["devtypes"].append(DEV_ISCSI)
pathInfo["type"] = DEV_ISCSI
sessionID = iscsi.getiScsiSession(slave)
if sessionID not in knownSessions:
# FIXME: This entire part is for BC. It should be moved to
# hsm and not preserved for new APIs. New APIs should keep
# numeric types and sane field names.
sess = iscsi.getSessionInfo(sessionID)
sessionInfo = {
"connection": sess.target.portal.hostname,
"port": str(sess.target.portal.port),
"iqn": sess.target.iqn,
"portal": str(sess.target.tpgt),
"initiatorname": sess.iface.name
}
# Note that credentials must be sent back in order for
# the engine to tell vdsm how to reconnect later
if sess.credentials:
cred = sess.credentials
sessionInfo['user'] = cred.username
sessionInfo['password'] = cred.password
knownSessions[sessionID] = sessionInfo
devInfo["connections"].append(knownSessions[sessionID])
else:
devInfo["devtypes"].append(DEV_FCP)
pathInfo["type"] = DEV_FCP
if devInfo["devtype"] == "":
devInfo["devtype"] = pathInfo["type"]
elif (devInfo["devtype"] != DEV_MIXED and
devInfo["devtype"] != pathInfo["type"]):
devInfo["devtype"] == DEV_MIXED
devInfo["paths"].append(pathInfo)
yield devInfo
def test_get_slaves(zero_dm_device):
slaves = devicemapper.getSlaves(zero_dm_device)
# Zero device mapping has no slaves.
assert slaves == []
def pathListIter(filterGuids=()):
filterLen = len(filterGuids) if filterGuids else -1
devsFound = 0
knownSessions = {}
svdsm = supervdsm.getProxy()
pathStatuses = devicemapper.getPathsStatus()
for dmId, guid in getMPDevsIter():
if devsFound == filterLen:
break
if filterGuids and guid not in filterGuids:
continue
devsFound += 1
devInfo = {
"guid": guid,
"dm": dmId,
"capacity": str(getDeviceSize(dmId)),
"serial": svdsm.getScsiSerial(dmId),
"paths": [],
"connections": [],
"devtypes": [],
"devtype": "",
"vendor": "",
"product": "",
"fwrev": "",
"logicalblocksize": "",
"physicalblocksize": "",
}
for slave in devicemapper.getSlaves(dmId):
if not devicemapper.isBlockDevice(slave):
log.warning("No such physdev '%s' is ignored" % slave)
continue
if not devInfo["vendor"]:
try:
devInfo["vendor"] = getVendor(slave)
except Exception:
log.warn("Problem getting vendor from device `%s`",
slave, exc_info=True)
if not devInfo["product"]:
try:
devInfo["product"] = getModel(slave)
except Exception:
log.warn("Problem getting model name from device `%s`",
slave, exc_info=True)
if not devInfo["fwrev"]:
try:
devInfo["fwrev"] = getFwRev(slave)
except Exception:
log.warn("Problem getting fwrev from device `%s`",
slave, exc_info=True)
if (not devInfo["logicalblocksize"] or
not devInfo["physicalblocksize"]):
try:
logBlkSize, phyBlkSize = getDeviceBlockSizes(slave)
devInfo["logicalblocksize"] = str(logBlkSize)
devInfo["physicalblocksize"] = str(phyBlkSize)
except Exception:
log.warn("Problem getting blocksize from device `%s`",
slave, exc_info=True)
pathInfo = {}
pathInfo["physdev"] = slave
pathInfo["state"] = pathStatuses.get(slave, "failed")
pathInfo["capacity"] = str(getDeviceSize(slave))
try:
hbtl = getHBTL(slave)
except OSError as e:
if e.errno == errno.ENOENT:
log.warn("Device has no hbtl: %s", slave)
pathInfo["lun"] = 0
else:
log.error("Error: %s while trying to get hbtl of device: "
"%s", str(e.message), slave)
raise
else:
pathInfo["lun"] = hbtl.lun
if iscsi.devIsiSCSI(slave):
devInfo["devtypes"].append(DEV_ISCSI)
pathInfo["type"] = DEV_ISCSI
sessionID = iscsi.getiScsiSession(slave)
if sessionID not in knownSessions:
# FIXME: This entire part is for BC. It should be moved to
# hsm and not preserved for new APIs. New APIs should keep
# numeric types and sane field names.
sess = iscsi.getSessionInfo(sessionID)
sessionInfo = {
"connection": sess.target.portal.hostname,
"port": str(sess.target.portal.port),
"iqn": sess.target.iqn,
"portal": str(sess.target.tpgt),
"initiatorname": sess.iface.name
}
# Note that credentials must be sent back in order for
# the engine to tell vdsm how to reconnect later
if sess.credentials:
cred = sess.credentials
sessionInfo['user'] = cred.username
sessionInfo['password'] = cred.password
knownSessions[sessionID] = sessionInfo
devInfo["connections"].append(knownSessions[sessionID])
else:
devInfo["devtypes"].append(DEV_FCP)
pathInfo["type"] = DEV_FCP
if devInfo["devtype"] == "":
devInfo["devtype"] = pathInfo["type"]
elif (devInfo["devtype"] != DEV_MIXED and
devInfo["devtype"] != pathInfo["type"]):
devInfo["devtype"] == DEV_MIXED
devInfo["paths"].append(pathInfo)
yield devInfo