def deactivate():
util.SMlog("MPATH: multipath deactivate called")
cmd = ['ln', '-sf', iscsi_default_file, iscsi_file]
if os.path.exists(iscsi_default_file):
# Only do this if using our customized open-iscsi package
util.pread2(cmd)
# Stop the updatempppathd daemon
if _is_mpp_daemon_running():
cmd = ["service", "updatempppathd", "stop"]
util.pread2(cmd)
if _is_mpath_daemon_running():
# Flush the multipath nodes
for sid in mpath_cli.list_maps():
reset(sid, True)
# Disable any active MPP LUN maps (except the root dev)
systemroot = os.path.realpath(util.getrootdev())
for dev in glob.glob(DEVBYMPPPATH + "/*"):
if os.path.realpath(dev) != systemroot:
sid = os.path.basename(dev).split('-')[0]
reset(sid)
else:
util.SMlog("MPP: Found root dev node, not resetting")
# Check the ISCSI daemon doesn't have any active sessions, if not,
# restart in the new mode
if iscsilib.is_iscsi_daemon_running() and not iscsilib._checkAnyTGT():
iscsilib.restart_daemon()
util.SMlog("MPATH: multipath deactivated.")
def createVG(root, vgname):
systemroot = util.getrootdev()
rootdev = root.split(',')[0]
# Create PVs for each device
for dev in root.split(','):
if dev in [systemroot, '%s1' % systemroot, '%s2' % systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
f = _openExclusive(dev, True)
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = [util.CMD_DD, "if=/dev/zero", "of=%s" % dev, "bs=1M",
"count=10", "oflag=direct"]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
# Overwrite the disk header, try normal IO
cmd = [util.CMD_DD, "if=/dev/zero", "of=%s" % dev,
"bs=1M", "count=10"]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
else:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
def deactivate():
util.SMlog("MPATH: multipath deactivate called")
cmd = ['ln', '-sf', iscsi_default_file, iscsi_file]
if os.path.exists(iscsi_default_file):
# Only do this if using our customized open-iscsi package
util.pread2(cmd)
# Stop the updatempppathd daemon
if _is_mpp_daemon_running():
cmd = ["service", "updatempppathd", "stop"]
util.pread2(cmd)
if _is_mpath_daemon_running():
# Flush the multipath nodes
for sid in mpath_cli.list_maps():
reset(sid,True)
# Disable any active MPP LUN maps (except the root dev)
systemroot = os.path.realpath(util.getrootdev())
for dev in glob.glob(DEVBYMPPPATH + "/*"):
if os.path.realpath(dev) != systemroot:
sid = os.path.basename(dev).split('-')[0]
reset(sid)
else:
util.SMlog("MPP: Found root dev node, not resetting")
# Check the ISCSI daemon doesn't have any active sessions, if not,
# restart in the new mode
if iscsilib.is_iscsi_daemon_running() and not iscsilib._checkAnyTGT():
iscsilib.restart_daemon()
util.SMlog("MPATH: multipath deactivated.")
def deactivate():
util.SMlog("MPATH: multipath deactivate called")
# Adjust any HBAs on the host
cmd = [hba_script, "disable"]
util.SMlog(util.pread2(cmd))
cmd = ['ln', '-sf', iscsi_default_file, iscsi_file]
util.pread2(cmd)
# Stop the updatempppathd daemon
if _is_mpp_daemon_running():
cmd = ["/etc/init.d/updatempppathd", "stop"]
util.pread2(cmd)
if _is_mpath_daemon_running():
# Flush the multipath nodes
for sid in mpath_cli.list_maps():
reset(sid, True)
# Disable any active MPP LUN maps (except the root dev)
systemroot = os.path.realpath(util.getrootdev())
for dev in glob.glob(DEVBYMPPPATH + "/*"):
if os.path.realpath(dev) != systemroot:
sid = os.path.basename(dev).split('-')[0]
reset(sid)
else:
util.SMlog("MPP: Found root dev node, not resetting")
# Check the ISCSI daemon doesn't have any active sessions, if not,
# restart in the new mode
if iscsilib.is_iscsi_daemon_running() and not iscsilib._checkAnyTGT():
iscsilib.restart_daemon()
util.SMlog("MPATH: multipath deactivated.")
def deactivate():
util.SMlog("MPATH: multipath deactivate called")
# Adjust any HBAs on the host
cmd = [hba_script, "disable"]
util.SMlog(util.pread2(cmd))
cmd = ['ln', '-sf', iscsi_default_file, iscsi_file]
util.pread2(cmd)
# Stop the updatempppathd daemon
if _is_mpp_daemon_running():
cmd = ["/etc/init.d/updatempppathd", "stop"]
util.pread2(cmd)
if _is_mpath_daemon_running():
# Flush the multipath nodes
for sid in mpath_cli.list_maps():
reset(sid,True)
# Disable any active MPP LUN maps (except the root dev)
systemroot = os.path.realpath(util.getrootdev())
for dev in glob.glob(DEVBYMPPPATH + "/*"):
if os.path.realpath(dev) != systemroot:
sid = os.path.basename(dev).split('-')[0]
reset(sid)
else:
util.SMlog("MPP: Found root dev node, not resetting")
# Check the ISCSI daemon doesn't have any active sessions, if not,
# restart in the new mode
if iscsilib.is_iscsi_daemon_running() and not iscsilib._checkAnyTGT():
iscsilib.restart_daemon()
util.SMlog("MPATH: multipath deactivated.")
def createVG(root, vgname):
systemroot = util.getrootdev()
rootdev = root.split(',')[0]
# Create PVs for each device
for dev in root.split(','):
if dev in [systemroot, '%s1' % systemroot, '%s2' % systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
f = _openExclusive(dev, True)
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = [util.CMD_DD, "if=/dev/zero", "of=%s" % dev, "bs=1M",
"count=10", "oflag=direct"]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
# Overwrite the disk header, try normal IO
cmd = [util.CMD_DD, "if=/dev/zero", "of=%s" % dev,
"bs=1M", "count=10"]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
else:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
def create(self, sr_uuid, size):
if self._checkmount():
raise xs_errors.XenError('SRExists')
# Check none of the devices already in use by other PBDs
if util.test_hostPBD_devs(self.session, self.root):
raise xs_errors.XenError('SRInUse')
# Check serial number entry in SR records
for dev in self.root.split(','):
if util.test_scsiserial(self.session, dev):
raise xs_errors.XenError('SRInUse')
if not lvutil._checkVG(self.vgname):
systemroot = util.getrootdev()
rootdev = self.root.split(',')[0]
# Create PVs for each device
for dev in self.root.split(','):
if dev in [systemroot, '%s1'%systemroot, '%s2'%systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
try:
f = os.open("%s" % dev, os.O_RDWR | os.O_EXCL)
except:
raise xs_errors.XenError('SRInUse')
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = ["dd","if=/dev/zero","of=%s" % dev,"bs=1M", \
"count=100","oflag=direct"]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
cmd = ["dd","if=/dev/zero","of=%s" % dev,"bs=1M", \
"count=100"]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite',
opterr='disk %s, error %d' % (dev, inst.code))
else:
raise xs_errors.XenError('LVMWrite',
opterr='disk %s, error %d' % (dev, inst.code))
if not lvutil._checkPV(dev):
try:
cmd = ["pvcreate", "--metadatasize", "10M", dev]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMPartCreate',
opterr='disk %s, error %d' % (dev, inst.code))
def create(self, sr_uuid, size):
if self._checkmount():
raise xs_errors.XenError('SRExists')
# Check none of the devices already in use by other PBDs
if util.test_hostPBD_devs(self.session, self.root):
raise xs_errors.XenError('SRInUse')
# Check serial number entry in SR records
for dev in self.root.split(','):
if util.test_scsiserial(self.session, dev):
raise xs_errors.XenError('SRInUse')
if not lvutil._checkVG(self.vgname):
systemroot = util.getrootdev()
rootdev = self.root.split(',')[0]
# Create PVs for each device
for dev in self.root.split(','):
if dev in [systemroot, '%s1'%systemroot, '%s2'%systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
try:
f = os.open("%s" % dev, os.O_RDWR | os.O_EXCL)
except:
raise xs_errors.XenError('SRInUse')
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = ["dd","if=/dev/zero","of=%s" % dev,"bs=1M", \
"count=100","oflag=direct"]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
cmd = ["dd","if=/dev/zero","of=%s" % dev,"bs=1M", \
"count=100"]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite',
opterr='disk %s, error %d' % (dev, inst.code))
else:
raise xs_errors.XenError('LVMWrite',
opterr='disk %s, error %d' % (dev, inst.code))
if not lvutil._checkPV(dev):
try:
cmd = ["pvcreate", "--metadatasize", "10M", dev]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMPartCreate',
opterr='disk %s, error %d' % (dev, inst.code))
def create(self, sr_uuid, size):
if not self.isMaster:
util.SMlog('sr_create blocked for non-master')
raise xs_errors.XenError('LVMMaster')
if lvutil._checkVG(self.vgname):
raise xs_errors.XenError('SRExists')
# Check none of the devices already in use by other PBDs
if util.test_hostPBD_devs(self.session, self.root):
raise xs_errors.XenError('SRInUse')
# Check serial number entry in SR records
for dev in self.root.split(','):
if util.test_scsiserial(self.session, dev):
raise xs_errors.XenError('SRInUse')
systemroot = util.getrootdev()
rootdev = self.root.split(',')[0]
# Create PVs for each device
for dev in self.root.split(','):
if dev in [systemroot, '%s1'%systemroot, '%s2'%systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
try:
f = os.open("%s" % dev, os.O_RDWR | os.O_EXCL)
except:
raise xs_errors.XenError('SRInUse', \
opterr=('Device %s in use, please check your existing ' \
+ 'SRs for an instance of this device') % dev)
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = ["dd","if=/dev/zero","of=%s" % dev,"bs=1M","count=100", \
"oflag=direct"]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
# Overwrite the disk header, try normal IO
cmd = ["dd","if=/dev/zero","of=%s" % dev,"bs=1M", \
"count=100"]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
else:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
def createVG(root, vgname, sr_alloc='thick'):
systemroot = util.getrootdev()
rootdev = root.split(',')[0]
# Create PVs for each device
for dev in root.split(','):
if dev in [systemroot, '%s1' % systemroot, '%s2' % systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
try:
f = os.open("%s" % dev, os.O_RDWR | os.O_EXCL)
except:
raise xs_errors.XenError('SRInUse', \
opterr=('Device %s in use, please check your existing ' \
+ 'SRs for an instance of this device') % dev)
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = [
util.CMD_DD, "if=/dev/zero",
"of=%s" % dev, "bs=1M", "count=10", "oflag=direct"
]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
# Overwrite the disk header, try normal IO
cmd = [
util.CMD_DD, "if=/dev/zero",
"of=%s" % dev, "bs=1M", "count=10"
]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
else:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
def createVG(root, vgname, sr_alloc='thick'):
systemroot = util.getrootdev()
rootdev = root.split(',')[0]
# Create PVs for each device
for dev in root.split(','):
if dev in [systemroot, '%s1' % systemroot, '%s2' % systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
try:
f = os.open("%s" % dev, os.O_RDWR | os.O_EXCL)
except:
raise xs_errors.XenError('SRInUse', \
opterr=('Device %s in use, please check your existing ' \
+ 'SRs for an instance of this device') % dev)
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = [util.CMD_DD, "if=/dev/zero", "of=%s" % dev, "bs=1M",
"count=10", "oflag=direct"]
util.pread2(cmd)
except util.CommandException, inst:
if inst.code == errno.EPERM:
try:
# Overwrite the disk header, try normal IO
cmd = [util.CMD_DD, "if=/dev/zero", "of=%s" % dev,
"bs=1M", "count=10"]
util.pread2(cmd)
except util.CommandException, inst:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
else:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
def deactivate():
util.SMlog("MPATH: multipath deactivate called")
if _is_mpath_daemon_running():
# Flush the multipath nodes
for sid in mpath_cli.list_maps():
reset(sid, True)
# Disable any active MPP LUN maps (except the root dev)
systemroot = os.path.realpath(util.getrootdev())
for dev in glob.glob(DEVBYMPPPATH + "/*"):
if os.path.realpath(dev) != systemroot:
sid = os.path.basename(dev).split('-')[0]
reset(sid)
else:
util.SMlog("MPP: Found root dev node, not resetting")
# Check the ISCSI daemon doesn't have any active sessions, if not,
# restart in the new mode
if iscsilib.is_iscsi_daemon_running() and not iscsilib._checkAnyTGT():
iscsilib.restart_daemon()
util.SMlog("MPATH: multipath deactivated.")
def scan(srobj):
systemroot = util.getrootdev()
hbadict = srobj.hbadict
hbas = srobj.hbas
dom = xml.dom.minidom.Document()
e = dom.createElement("Devlist")
dom.appendChild(e)
if not os.path.exists(DEVPATH):
return dom.toprettyxml()
devs = srobj.devs
vdis = {}
for key in hbadict:
hba = hbadict[key]
path = os.path.join("/dev",key)
realpath = path
obj = srobj.vdi("")
try:
obj._query(realpath, devs[realpath][4])
except:
continue
# Test for root dev or existing PBD
if realpath == systemroot:
continue
elif util.test_SCSIid(srobj.session, obj.SCSIid):
util.SMlog("SCSIid in use, ignoring (%s)" % obj.SCSIid)
continue
elif not devs.has_key(realpath):
continue
ids = devs[realpath]
obj.adapter = ids[1]
obj.channel = ids[2]
obj.id = ids[3]
obj.lun = ids[4]
obj.hba = hba['procname']
obj.numpaths = 1
if vdis.has_key(obj.SCSIid):
vdis[obj.SCSIid].numpaths += 1
vdis[obj.SCSIid].path += " [%s]" % key
elif obj.hba == 'mpp':
mppdict = _genMPPHBA(obj.adapter)
if mppdict.has_key(key):
item = mppdict[key]
adapters = ''
for i in item:
if len(adapters):
adapters += ', '
obj.numpaths += 1
adapters += i
if len(adapters):
obj.mpp = adapters
vdis[obj.SCSIid] = obj
else:
vdis[obj.SCSIid] = obj
for key in vdis:
obj = vdis[key]
d = dom.createElement("BlockDevice")
e.appendChild(d)
for attr in ['path','numpaths','SCSIid','vendor','serial','size','adapter','channel','id','lun','hba','mpp']:
try:
aval = getattr(obj, attr)
except AttributeError:
if attr in ['mpp']:
continue
raise xs_errors.XenError('InvalidArg', \
opterr='Missing required field [%s]' % attr)
entry = dom.createElement(attr)
d.appendChild(entry)
textnode = dom.createTextNode(str(aval))
entry.appendChild(textnode)
for key in hbas.iterkeys():
a = dom.createElement("Adapter")
e.appendChild(a)
entry = dom.createElement('host')
a.appendChild(entry)
textnode = dom.createTextNode(key)
entry.appendChild(textnode)
entry = dom.createElement('name')
a.appendChild(entry)
textnode = dom.createTextNode(hbas[key])
entry.appendChild(textnode)
entry = dom.createElement('manufacturer')
a.appendChild(entry)
textnode = dom.createTextNode(getManufacturer(hbas[key]))
entry.appendChild(textnode)
id = key.replace("host","")
entry = dom.createElement('id')
a.appendChild(entry)
textnode = dom.createTextNode(id)
entry.appendChild(textnode)
return dom.toprettyxml()
def createVG(root, vgname):
systemroot = util.getrootdev()
rootdev = root.split(',')[0]
# Create PVs for each device
for dev in root.split(','):
if dev in [systemroot, '%s1' % systemroot, '%s2' % systemroot]:
raise xs_errors.XenError('Rootdev', \
opterr=('Device %s contains core system files, ' \
+ 'please use another device') % dev)
if not os.path.exists(dev):
raise xs_errors.XenError('InvalidDev', \
opterr=('Device %s does not exist') % dev)
f = _openExclusive(dev, True)
os.close(f)
try:
# Overwrite the disk header, try direct IO first
cmd = [
util.CMD_DD, "if=/dev/zero",
"of=%s" % dev, "bs=1M", "count=10", "oflag=direct"
]
util.pread2(cmd)
except util.CommandException as inst:
if inst.code == errno.EPERM:
try:
# Overwrite the disk header, try normal IO
cmd = [
util.CMD_DD, "if=/dev/zero",
"of=%s" % dev, "bs=1M", "count=10"
]
util.pread2(cmd)
except util.CommandException as inst:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
else:
raise xs_errors.XenError('LVMWrite', \
opterr='device %s' % dev)
if not (dev == rootdev):
try:
cmd_lvm(
[CMD_PVCREATE, "-ff", "-y", "--metadatasize", "10M", dev])
except util.CommandException as inst:
raise xs_errors.XenError('LVMPartCreate',
opterr='error is %d' % inst.code)
# Create VG on first device
try:
cmd_lvm([CMD_VGCREATE, "--metadatasize", "10M", vgname, rootdev])
except:
raise xs_errors.XenError('LVMGroupCreate')
# Then add any additional devs into the VG
for dev in root.split(',')[1:]:
try:
cmd_lvm([CMD_VGEXTEND, vgname, dev])
except util.CommandException as inst:
# One of the PV args failed, delete SR
try:
cmd_lvm([CMD_VGREMOVE, vgname])
except:
pass
raise xs_errors.XenError('LVMGroupCreate')
try:
cmd_lvm([CMD_VGCHANGE, "-an", vgname])
except util.CommandException as inst:
raise xs_errors.XenError('LVMUnMount',
opterr='errno is %d' % inst.code)
