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3 Replies Latest reply: Apr 18, 2012 4:49 AM by user130038 RSS

mount.ocfs2: Bad magic number in superblock while opening device /dev/sdf1

user8665771 Newbie
Currently Being Moderated
Hi,

I am trying to configure 11g on Rhel 6 (OEL6) in vwmare. While I am mounting the ocfs partition in rac2(node2), I show the below error.
"mount.ocfs2: Bad magic number in superblock while opening device /dev/sdf1".
But i can mount in rac1(node1).
I will give some information here based on other some of other forums.
NODE1(rac1)
=========
[root@rac1 ~]# mounted.ocfs2 -d
Device FS Stack UUID Label
/dev/sdf1 ocfs2 o2cb 2D1785E0BC2D4EE6911FEE26896AFAD1 crsfile
[root@rac1 ~]# mounted.ocfs2 -f
Device FS Nodes
/dev/sdf1 ocfs2 rac1
[root@rac1 ~]# /etc/rc.d/init.d/ocfs2 status
Active OCFS2 mountpoints: /ocfs

NODE2(rac2)
=========
[root@rac2 ~]# mounted.ocfs2 -d
Device FS Stack UUID Label
[root@rac2 ~]# mounted.ocfs2 -f
Device FS Nodes
[root@rac2 ~]# /etc/rc.d/init.d/ocfs2 status
[root@rac2 ~]#

NODE1(rac1)
=========
[root@rac1 ~]# cat /etc/ocfs2/cluster.conf
node:
ip_port = 7777
ip_address = 192.168.2.131
number = 0
name = rac1
cluster = ocfs2

node:
ip_port = 7777
ip_address = 192.168.2.132
number = 1
name = rac2
cluster = ocfs2

cluster:
node_count = 2
name = ocfs2
[root@rac1 ~]#


NODE2(rac2)
=========
[root@rac2 ~]# cat /etc/ocfs2/cluster.conf
node:
ip_port = 7777
ip_address = 192.168.2.131
number = 0
name = rac1
cluster = ocfs2

node:
ip_port = 7777
ip_address = 192.168.2.132
number = 1
name = rac2
cluster = ocfs2

cluster:
node_count = 2
name = ocfs2

NODE1(rac1)
=========
[root@rac1 ~]# /etc/rc.d/init.d/iptables status
iptables: Firewall is not running.
[root@rac1 ~]#

NODE2(rac2)
=========
[root@rac2 ~]# /etc/rc.d/init.d/iptables status
iptables: Firewall is not running.
================NODE1(rac1)===============================
.encoding = "windows-1252"
config.version = "8"
virtualHW.version = "7"
maxvcpus = "4"
scsi0.present = "TRUE"
scsi0.virtualDev = "lsilogic"
memsize = "1024"
mem.hotadd = "TRUE"
############scsi0:0.present = "TRUE"
################scsi0:0.fileName = "RAC1.vmdk"
ide1:0.present = "TRUE"
ide1:0.fileName = "D:\oel6.0-x86_64.iso"
ide1:0.deviceType = "cdrom-image"
floppy0.startConnected = "FALSE"
floppy0.fileName = ""
floppy0.autodetect = "TRUE"
ethernet0.present = "TRUE"
ethernet0.virtualDev = "e1000"
ethernet0.wakeOnPcktRcv = "FALSE"
ethernet0.addressType = "generated"
usb.present = "TRUE"
ehci.present = "TRUE"
sound.present = "TRUE"
sound.fileName = "-1"
sound.autodetect = "TRUE"
pciBridge0.present = "TRUE"
pciBridge4.present = "TRUE"
pciBridge4.virtualDev = "pcieRootPort"
pciBridge4.functions = "8"
pciBridge5.present = "TRUE"
pciBridge5.virtualDev = "pcieRootPort"
pciBridge5.functions = "8"
pciBridge6.present = "TRUE"
pciBridge6.virtualDev = "pcieRootPort"
pciBridge6.functions = "8"
pciBridge7.present = "TRUE"
pciBridge7.virtualDev = "pcieRootPort"
pciBridge7.functions = "8"
vmci0.present = "TRUE"
roamingVM.exitBehavior = "go"
displayName = "RAC1"
guestOS = "rhel5-64"
nvram = "RAC1.nvram"
virtualHW.productCompatibility = "hosted"
extendedConfigFile = "RAC1.vmxf"
ethernet0.generatedAddress = "00:0c:29:3e:d6:99"
uuid.location = "56 4d f1 85 0a 39 eb 0f-16 5b 09 0e 68 3e d6 99"
uuid.bios = "56 4d f1 85 0a 39 eb 0f-16 5b 09 0e 68 3e d6 99"
cleanShutdown = "FALSE"
replay.supported = "FALSE"
replay.filename = ""
scsi0:0.redo = ""
pciBridge0.pciSlotNumber = "17"
pciBridge4.pciSlotNumber = "21"
pciBridge5.pciSlotNumber = "22"
pciBridge6.pciSlotNumber = "23"
pciBridge7.pciSlotNumber = "24"
scsi0.pciSlotNumber = "16"
usb.pciSlotNumber = "32"
ethernet0.pciSlotNumber = "33"
sound.pciSlotNumber = "34"
ehci.pciSlotNumber = "35"
vmci0.pciSlotNumber = "36"
vmotion.checkpointFBSize = "16777216"
ethernet0.generatedAddressOffset = "0"
vmci0.id = "1748948635"
usb:1.present = "TRUE"
tools.remindInstall = "FALSE"
usb:1.deviceType = "hub"
ide1:0.startConnected = "FALSE"
tools.syncTime = "TRUE"
ethernet1.present = "TRUE"
ethernet1.connectionType = "bridged"
ethernet1.virtualDev = "e1000"
ethernet1.wakeOnPcktRcv = "FALSE"
ethernet1.addressType = "generated"
checkpoint.vmState = ""
ethernet0.linkStatePropagation.enable = "TRUE"
ethernet1.generatedAddress = "00:0c:29:3e:d6:a3"
unity.wasCapable = "TRUE"
debugStub.linuxOffsets = "0x0,0xffffffff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0"
ethernet1.pciSlotNumber = "37"
ethernet2.virtualDev = "e1000"
ethernet2.pciSlotNumber = "38"
ethernet1.generatedAddressOffset = "10"
ethernet0.vnet = "VMnet1"
ethernet0.connectionType = "bridged"
ethernet2.present = "TRUE"
ethernet2.vnet = "VMnet8"
ethernet2.connectionType = "nat"
ethernet2.wakeOnPcktRcv = "FALSE"
ethernet2.addressType = "generated"
ethernet2.generatedAddress = "00:0c:29:3e:d6:ad"
ethernet2.generatedAddressOffset = "20"
###############################################################################################################
# ----------------------------------------------------------------
# SHARED DISK SECTION - (BEGIN)
# ----------------------------------------------------------------
# - The goal in meeting the hardware requirements is to have a
# shared storage for the two nodes. The way to achieve this in
# VMware is the creation of a NEW SCSI BUS. It has to be of
# type "virtual" and we must have the disk.locking = "false"
# option.
# - Just dataCacheMaxSize = "0" should be sufficient with the
# diskLib.* parameters, although I include all parameters for
# documentation purposes.
# - maxUnsyncedWrites should matter for sparse disks only, and
# I certainly do not recommend using sparse disks for
# clustering.
# - dataCacheMaxSize=0 should disable cache size completely, so
# other three dataCache options should do nothing (no harm,
# but nothing good either).
# ----------------------------------------------------------------
#

diskLib.dataCacheMaxSize = "0"
diskLib.dataCacheMaxReadAheadSize = "0"
diskLib.dataCacheMinReadAheadSize = "0"
diskLib.dataCachePageSize = "4096"
diskLib.maxUnsyncedWrites = "0"

disk.locking = "false"

# ----------------------------------------------------------------
# Create one HBA
# ----------------------------------------------------------------



# ----------------------------------------------------------------
# Create virtual SCSI disks on single HBA
# ----------------------------------------------------------------
#
# ----------------------------------------------------------------
# SHARED DISK SECTION - (END)
# ----------------------------------------------------------------
#
scsi0.sharedBus = "virtual"
scsi1.pciSlotNumber = "-1"
scsi0:0.present = "TRUE"
scsi0:0.fileName = "RAC1.vmdk"
scsi0:1.present = "TRUE"
scsi0:1.fileName = "D:\shared_direc\Disk1.vmdk"
scsi0:2.present = "TRUE"
scsi0:2.fileName = "D:\shared_direc\Disk2.vmdk"
scsi0:3.present = "TRUE"
scsi0:3.fileName = "D:\shared_direc\Disk3.vmdk"
scsi0:4.present = "TRUE"
scsi0:4.fileName = "D:\shared_direc\Disk4.vmdk"
scsi0:5.present = "TRUE"
scsi0:5.fileName = "D:\shared_direc\Disk5.vmdk"
scsi0:1.redo = ""
scsi0:2.redo = ""
scsi0:3.redo = ""
scsi0:4.redo = ""
scsi0:5.redo = ""
scsi0:1.mode = "independent-persistent"
scsi0:1.deviceType = "disk"
scsi0:2.mode = "independent-persistent"
scsi0:2.deviceType = "disk"
scsi0:3.mode = "independent-persistent"
scsi0:3.deviceType = "disk"
scsi0:4.mode = "independent-persistent"
scsi0:4.deviceType = "disk"
scsi0:5.mode = "independent-persistent"
scsi0:5.deviceType = "disk"
scsi0:0.mode = "independent-persistent"
========================NODE2(rac2)=======================================
.encoding = "windows-1252"
config.version = "8"
virtualHW.version = "7"
maxvcpus = "4"
scsi0.present = "TRUE"
scsi0.virtualDev = "lsilogic"
memsize = "1024"
mem.hotadd = "TRUE"
scsi0:0.present = "TRUE"
scsi0:0.fileName = "RAC1-cl1.vmdk"
ide1:0.present = "TRUE"
ide1:0.fileName = "D:\oel6.0-x86_64.iso"
ide1:0.deviceType = "cdrom-image"
floppy0.startConnected = "FALSE"
floppy0.fileName = ""
floppy0.autodetect = "TRUE"
ethernet0.present = "TRUE"
ethernet0.virtualDev = "e1000"
ethernet0.wakeOnPcktRcv = "FALSE"
ethernet0.addressType = "generated"
usb.present = "TRUE"
ehci.present = "TRUE"
sound.present = "TRUE"
sound.fileName = "-1"
sound.autodetect = "TRUE"
pciBridge0.present = "TRUE"
pciBridge4.present = "TRUE"
pciBridge4.virtualDev = "pcieRootPort"
pciBridge4.functions = "8"
pciBridge5.present = "TRUE"
pciBridge5.virtualDev = "pcieRootPort"
pciBridge5.functions = "8"
pciBridge6.present = "TRUE"
pciBridge6.virtualDev = "pcieRootPort"
pciBridge6.functions = "8"
pciBridge7.present = "TRUE"
pciBridge7.virtualDev = "pcieRootPort"
pciBridge7.functions = "8"
vmci0.present = "TRUE"
roamingVM.exitBehavior = "go"
displayName = "rac2"
guestOS = "rhel5-64"
nvram = "rac2.nvram"
virtualHW.productCompatibility = "hosted"
extendedConfigFile = "rac2.vmxf"
ethernet0.generatedAddress = "00:0c:29:cd:a3:fc"
uuid.location = "56 4d 4c fe 6c c4 fd 8a-32 88 ac 95 5a cd a3 fc"
uuid.bios = "56 4d 4c fe 6c c4 fd 8a-32 88 ac 95 5a cd a3 fc"
cleanShutdown = "FALSE"
replay.supported = "FALSE"
replay.filename = ""
scsi0:0.redo = ""
pciBridge0.pciSlotNumber = "17"
pciBridge4.pciSlotNumber = "21"
pciBridge5.pciSlotNumber = "22"
pciBridge6.pciSlotNumber = "23"
pciBridge7.pciSlotNumber = "24"
scsi0.pciSlotNumber = "16"
usb.pciSlotNumber = "32"
ethernet0.pciSlotNumber = "33"
sound.pciSlotNumber = "34"
ehci.pciSlotNumber = "35"
vmci0.pciSlotNumber = "36"
vmotion.checkpointFBSize = "16777216"
ethernet0.generatedAddressOffset = "0"
vmci0.id = "1748948634"
usb:1.present = "TRUE"
tools.remindInstall = "FALSE"
usb:1.deviceType = "hub"
ide1:0.startConnected = "FALSE"
tools.syncTime = "TRUE"
ethernet1.present = "TRUE"
ethernet1.connectionType = "bridged"
ethernet1.virtualDev = "e1000"
ethernet1.wakeOnPcktRcv = "FALSE"
ethernet1.addressType = "generated"
checkpoint.vmState = ""
ethernet0.linkStatePropagation.enable = "FALSE"
ethernet1.generatedAddress = "00:0c:29:cd:a3:06"
unity.wasCapable = "TRUE"
debugStub.linuxOffsets = "0x0,0xffffffff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0"
ethernet1.pciSlotNumber = "37"
ethernet1.generatedAddressOffset = "10"
ethernet0.vnet = "VMnet1"
ethernet0.connectionType = "bridged"
scsi0:1.present = "TRUE"
scsi0:2.present = "TRUE"
policy.vm.mvmtid = ""
vc.uuid = ""
inVMTeam = "FALSE"
# ----------------------------------------------------------------
# Create one HBA
# ----------------------------------------------------------------
scsi0:1.fileName = "D:\shared_direc\Disk1.vmdk"
scsi0:1.mode = "independent-persistent"
scsi0:2.fileName = "D:\shared_direc\Disk2.vmdk"
scsi0:2.mode = "independent-persistent"
scsi0:3.present = "TRUE"
scsi0:3.fileName = "D:\shared_direc\Disk3.vmdk"
scsi0:3.mode = "independent-persistent"
scsi0:4.present = "TRUE"
scsi0:4.fileName = "D:\shared_direc\Disk4.vmdk"
scsi0:4.mode = "independent-persistent"
scsi0:5.present = "TRUE"
scsi0:5.fileName = "D:\shared_direc\Disk5.vmdk"
scsi0:5.mode = "independent-persistent"
scsi0:1.redo = ""
scsi0:2.redo = ""
scsi0:3.redo = ""
scsi0:4.redo = ""
scsi0:5.redo = ""
diskLib.dataCacheMaxSize = "0"
diskLib.dataCacheMaxReadAheadSize = "0"
diskLib.dataCacheMinReadAheadSize = "0"
diskLib.dataCachePageSize = "4096"
diskLib.maxUnsyncedWrites = "0"
disk.locking = "false"
scsi0:1.deviceType = "disk"
scsi0:2.deviceType = "disk"
scsi0:3.deviceType = "disk"
scsi0:4.deviceType = "disk"
scsi0:5.deviceType = "disk"
scsi0:0.mode = "independent-persistent"
ethernet2.present = "FALSE"
scsi0.sharedBus = "virtual"
==========================================================================

NODE1(rac1)
=========
[root@rac1 ~]# /etc/init.d/o2cb status
Driver for "configfs": Loaded
Filesystem "configfs": Mounted
Stack glue driver: Loaded
Stack plugin "o2cb": Loaded
Driver for "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Online
Heartbeat dead threshold = 31
Network idle timeout: 30000
Network keepalive delay: 2000
Network reconnect delay: 2000
Checking O2CB heartbeat: Active

NODE2(rac2)
=========
[root@rac2 ~]# /etc/init.d/o2cb status
Driver for "configfs": Loaded
Filesystem "configfs": Mounted
Stack glue driver: Loaded
Stack plugin "o2cb": Loaded
Driver for "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Offline
[root@rac2 ~]#

I have tried the below otption also. But no improvement. Same error.
1)unmont ocfs from both (I know it may not be mounted on both)
2)[root@RAC1 ~]# umount /ocfs
3)[root@RAC2 ~]# umount /ocfs
4)reformat the ocfs2 partition, either using UI or this command: mkfs.ocfs2 -b 4K -C 32K -N 4 -L crsfile /dev/sdb1 [ from rac1 only ]
5)mount it on both servers and see if it helps [mount -t ocfs2 -o datavolume,nointr /dev/sdb1 /ocfs]

Please help me . If you want some more details. please ask.

thanks in adavance.

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