def stabilize(self):
# Wait for udev to create the devices for the just added disks
# It is possible when we get here the events for the new devices
# are not send yet, so sleep to make sure the events are fired
time.sleep(2)
udev_settle()
def offlineSCSIDevice(self):
f = open("/proc/scsi/scsi", "r")
lines = f.readlines()
f.close()
# alternatively iterate over /sys/bus/scsi/devices/*:0:*:*/
for line in lines:
if not line.startswith("Host"):
continue
scsihost = string.split(line)
host = scsihost[1]
channel = "0"
id = scsihost[5]
lun = scsihost[7]
scsidev = "%s:%s:%s:%s" % (host[4:], channel, id, lun)
fcpsysfs = "%s/%s" % (scsidevsysfs, scsidev)
scsidel = "%s/%s/delete" % (scsidevsysfs, scsidev)
f = open("%s/hba_id" % (fcpsysfs), "r")
fcphbasysfs = f.readline().strip()
f.close()
f = open("%s/wwpn" % (fcpsysfs), "r")
fcpwwpnsysfs = f.readline().strip()
f.close()
f = open("%s/fcp_lun" % (fcpsysfs), "r")
fcplunsysfs = f.readline().strip()
f.close()
if fcphbasysfs == self.devnum and fcpwwpnsysfs == self.wwpn and fcplunsysfs == self.fcplun:
loggedWriteLineToFile(scsidel, "1")
udev_settle()
return
log.warn("no scsi device found to delete for zfcp %s %s %s" % (self.devnum, self.wwpn, self.fcplun))
def offlineSCSIDevice(self):
f = open("/proc/scsi/scsi", "r")
lines = f.readlines()
f.close()
# alternatively iterate over /sys/bus/scsi/devices/*:0:*:*/
for line in lines:
if not line.startswith("Host"):
continue
scsihost = string.split(line)
host = scsihost[1]
channel = "0"
id = scsihost[5]
lun = scsihost[7]
scsidev = "%s:%s:%s:%s" % (host[4:], channel, id, lun)
fcpsysfs = "%s/%s" % (scsidevsysfs, scsidev)
scsidel = "%s/%s/delete" % (scsidevsysfs, scsidev)
f = open("%s/hba_id" % (fcpsysfs), "r")
fcphbasysfs = f.readline().strip()
f.close()
f = open("%s/wwpn" % (fcpsysfs), "r")
fcpwwpnsysfs = f.readline().strip()
f.close()
f = open("%s/fcp_lun" % (fcpsysfs), "r")
fcplunsysfs = f.readline().strip()
f.close()
if fcphbasysfs == self.devnum \
and fcpwwpnsysfs == self.wwpn \
and fcplunsysfs == self.fcplun:
loggedWriteLineToFile(scsidel, "1")
udev_settle()
return
log.warn("no scsi device found to delete for zfcp %s %s %s" %
(self.devnum, self.wwpn, self.fcplun))
def onlineDevice(self):
online = "%s/%s/online" % (zfcpsysfs, self.devnum)
portadd = "%s/%s/port_add" % (zfcpsysfs, self.devnum)
portdir = "%s/%s/%s" % (zfcpsysfs, self.devnum, self.wwpn)
unitadd = "%s/unit_add" % (portdir)
unitdir = "%s/%s" % (portdir, self.fcplun)
failed = "%s/failed" % (unitdir)
if not os.path.exists(online):
log.info("Freeing zFCP device %s" % (self.devnum, ))
iutil.execWithRedirect("zfcp_cio_free", ["-d", self.devnum],
stdout="/dev/tty5",
stderr="/dev/tty5")
if not os.path.exists(online):
raise ValueError, _(
"zFCP device %s not found, not even in device ignore list." %
(self.devnum, ))
try:
f = open(online, "r")
devonline = f.readline().strip()
f.close()
if devonline != "1":
loggedWriteLineToFile(online, "1")
except IOError as e:
raise ValueError, _("Could not set zFCP device %(devnum)s "
"online (%(e)s).") \
% {'devnum': self.devnum, 'e': e}
if not os.path.exists(portdir):
if os.path.exists(portadd):
# older zfcp sysfs interface
try:
loggedWriteLineToFile(portadd, self.wwpn)
udev_settle()
except IOError as e:
raise ValueError, _("Could not add WWPN %(wwpn)s to zFCP "
"device %(devnum)s (%(e)s).") \
% {'wwpn': self.wwpn,
'devnum': self.devnum,
'e': e}
else:
# newer zfcp sysfs interface with auto port scan
raise ValueError, _("WWPN %(wwpn)s not found at zFCP device "
"%(devnum)s.") % {
'wwpn': self.wwpn,
'devnum': self.devnum
}
else:
if os.path.exists(portadd):
# older zfcp sysfs interface
log.info("WWPN %(wwpn)s at zFCP device %(devnum)s already "
"there.") % {
'wwpn': self.wwpn,
'devnum': self.devnum
}
if not os.path.exists(unitdir):
try:
loggedWriteLineToFile(unitadd, self.fcplun)
udev_settle()
except IOError as e:
raise ValueError, _("Could not add LUN %(fcplun)s to WWPN "
"%(wwpn)s on zFCP device %(devnum)s "
"(%(e)s).") \
% {'fcplun': self.fcplun, 'wwpn': self.wwpn,
'devnum': self.devnum, 'e': e}
else:
raise ValueError, _("LUN %(fcplun)s at WWPN %(wwpn)s on zFCP "
"device %(devnum)s already configured.") \
% {'fcplun': self.fcplun,
'wwpn': self.wwpn,
'devnum': self.devnum}
fail = "0"
try:
f = open(failed, "r")
fail = f.readline().strip()
f.close()
except IOError as e:
raise ValueError, _("Could not read failed attribute of LUN "
"%(fcplun)s at WWPN %(wwpn)s on zFCP device "
"%(devnum)s (%(e)s).") \
% {'fcplun': self.fcplun,
'wwpn': self.wwpn,
'devnum': self.devnum,
'e': e}
if fail != "0":
self.offlineDevice()
raise ValueError, _("Failed LUN %(fcplun)s at WWPN %(wwpn)s on "
"zFCP device %(devnum)s removed again.") \
% {'fcplun': self.fcplun,
'wwpn': self.wwpn,
'devnum': self.devnum}
return True
def onlineDevice(self):
online = "%s/%s/online" %(zfcpsysfs, self.devnum)
portadd = "%s/%s/port_add" %(zfcpsysfs, self.devnum)
portdir = "%s/%s/%s" %(zfcpsysfs, self.devnum, self.wwpn)
unitadd = "%s/unit_add" %(portdir)
unitdir = "%s/%s" %(portdir, self.fcplun)
failed = "%s/failed" %(unitdir)
if not os.path.exists(online):
log.info("Freeing zFCP device %s" % (self.devnum,))
iutil.execWithRedirect("zfcp_cio_free", ["-d", self.devnum],
stdout="/dev/tty5", stderr="/dev/tty5")
if not os.path.exists(online):
raise ValueError, _(
"zFCP device %s not found, not even in device ignore list."
%(self.devnum,))
try:
f = open(online, "r")
devonline = f.readline().strip()
f.close()
if devonline != "1":
loggedWriteLineToFile(online, "1")
except IOError as e:
raise ValueError, _("Could not set zFCP device %(devnum)s "
"online (%(e)s).") \
% {'devnum': self.devnum, 'e': e}
if not os.path.exists(portdir):
if os.path.exists(portadd):
# older zfcp sysfs interface
try:
loggedWriteLineToFile(portadd, self.wwpn)
udev_settle()
except IOError as e:
raise ValueError, _("Could not add WWPN %(wwpn)s to zFCP "
"device %(devnum)s (%(e)s).") \
% {'wwpn': self.wwpn,
'devnum': self.devnum,
'e': e}
else:
# newer zfcp sysfs interface with auto port scan
raise ValueError, _("WWPN %(wwpn)s not found at zFCP device "
"%(devnum)s.") % {'wwpn': self.wwpn,
'devnum': self.devnum}
else:
if os.path.exists(portadd):
# older zfcp sysfs interface
log.info("WWPN %(wwpn)s at zFCP device %(devnum)s already "
"there." % {'wwpn': self.wwpn,
'devnum': self.devnum})
if not os.path.exists(unitdir):
try:
loggedWriteLineToFile(unitadd, self.fcplun)
udev_settle()
except IOError as e:
raise ValueError, _("Could not add LUN %(fcplun)s to WWPN "
"%(wwpn)s on zFCP device %(devnum)s "
"(%(e)s).") \
% {'fcplun': self.fcplun, 'wwpn': self.wwpn,
'devnum': self.devnum, 'e': e}
else:
raise ValueError, _("LUN %(fcplun)s at WWPN %(wwpn)s on zFCP "
"device %(devnum)s already configured.") \
% {'fcplun': self.fcplun,
'wwpn': self.wwpn,
'devnum': self.devnum}
fail = "0"
try:
f = open(failed, "r")
fail = f.readline().strip()
f.close()
except IOError as e:
raise ValueError, _("Could not read failed attribute of LUN "
"%(fcplun)s at WWPN %(wwpn)s on zFCP device "
"%(devnum)s (%(e)s).") \
% {'fcplun': self.fcplun,
'wwpn': self.wwpn,
'devnum': self.devnum,
'e': e}
if fail != "0":
self.offlineDevice()
raise ValueError, _("Failed LUN %(fcplun)s at WWPN %(wwpn)s on "
"zFCP device %(devnum)s removed again.") \
% {'fcplun': self.fcplun,
'wwpn': self.wwpn,
'devnum': self.devnum}
return True
def onlineDevice(self):
online = "%s/%s/online" % (zfcpsysfs, self.devnum)
portadd = "%s/%s/port_add" % (zfcpsysfs, self.devnum)
portdir = "%s/%s/%s" % (zfcpsysfs, self.devnum, self.wwpn)
unitadd = "%s/unit_add" % (portdir)
unitdir = "%s/%s" % (portdir, self.fcplun)
failed = "%s/failed" % (unitdir)
try:
if not os.path.exists(online):
loggedWriteLineToFile("/proc/cio_ignore", "free %s" % (self.devnum,))
udev_settle()
except IOError as e:
raise ValueError, _("Could not free zFCP device %(devnum)s from " "device ignore list (%(e)s).") % {
"devnum": self.devnum,
"e": e,
}
if not os.path.exists(online):
raise ValueError, _("zFCP device %s not found, not even in device ignore list." % (self.devnum,))
try:
f = open(online, "r")
devonline = f.readline().strip()
f.close()
if devonline != "1":
loggedWriteLineToFile(online, "1")
else:
log.info("zFCP device %s already online." % (self.devnum,))
except IOError as e:
raise ValueError, _("Could not set zFCP device %(devnum)s " "online (%(e)s).") % {
"devnum": self.devnum,
"e": e,
}
if not os.path.exists(portdir):
if os.path.exists(portadd):
# older zfcp sysfs interface
try:
loggedWriteLineToFile(portadd, self.wwpn)
udev_settle()
except IOError as e:
raise ValueError, _("Could not add WWPN %(wwpn)s to zFCP " "device %(devnum)s (%(e)s).") % {
"wwpn": self.wwpn,
"devnum": self.devnum,
"e": e,
}
else:
# newer zfcp sysfs interface with auto port scan
raise ValueError, _("WWPN %(wwpn)s not found at zFCP device " "%(devnum)s.") % {
"wwpn": self.wwpn,
"devnum": self.devnum,
}
else:
if os.path.exists(portadd):
# older zfcp sysfs interface
log.info("WWPN %(wwpn)s at zFCP device %(devnum)s already " "there.") % {
"wwpn": self.wwpn,
"devnum": self.devnum,
}
if not os.path.exists(unitdir):
try:
loggedWriteLineToFile(unitadd, self.fcplun)
udev_settle()
except IOError as e:
raise ValueError, _(
"Could not add LUN %(fcplun)s to WWPN " "%(wwpn)s on zFCP device %(devnum)s " "(%(e)s)."
) % {"fcplun": self.fcplun, "wwpn": self.wwpn, "devnum": self.devnum, "e": e}
else:
raise ValueError, _("LUN %(fcplun)s at WWPN %(wwpn)s on zFCP " "device %(devnum)s already configured.") % {
"fcplun": self.fcplun,
"wwpn": self.wwpn,
"devnum": self.devnum,
}
fail = "0"
try:
f = open(failed, "r")
fail = f.readline().strip()
f.close()
except IOError as e:
raise ValueError, _(
"Could not read failed attribute of LUN "
"%(fcplun)s at WWPN %(wwpn)s on zFCP device "
"%(devnum)s (%(e)s)."
) % {"fcplun": self.fcplun, "wwpn": self.wwpn, "devnum": self.devnum, "e": e}
if fail != "0":
self.offlineDevice()
raise ValueError, _(
"Failed LUN %(fcplun)s at WWPN %(wwpn)s on " "zFCP device %(devnum)s removed again."
) % {"fcplun": self.fcplun, "wwpn": self.wwpn, "devnum": self.devnum}
return True
