After restarting iscsi remote drive are not accesible in an IP6 disabled centos 5.4

Hi

i have installed one HP blade server with "Linux version 2.6.18-164.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) 0000001 SMP Thu Sep 3 03:28:30 EDT 2009 " CentOS release 5.4 (Final) .I have disabled the IP6 with these commands by adding these in /etc/modeprob.conf

alias net-pf-10 off
alias ipv6 off
options ipv6 disable=1

after that i installed iscsi and pointed towards one netapp .then i created lvm in the system with netapp drive .

when ever i restart a server or restart ISCSCI after that i am not not able to access the LVM what i created . Please help me

Additional Information dsmg log

EXT3 FS on dm-2, internal journal
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
cxgb3i: tag itt 0x1fff, 13 bits, age 0xf, 4 bits.
iscsi: registered transport (cxgb3i)
cnic: Unknown symbol __ipv6_addr_type
cnic: Unknown symbol ip6_route_output
iscsi: registered transport (iser)
scsi1 : iSCSI Initiator over TCP/IP
Vendor: NETAPP Model: LUN Rev: 7310
Type: Direct-Access ANSI SCSI revision: 04
SCSI device sdb: 629225472 512-byte hdwr sectors (322163 MB)
sdb: Write Protect is off
sdb: Mode Sense: bd 00 00 08
SCSI device sdb: drive cache: write through
SCSI device sdb: 629225472 512-byte hdwr sectors (322163 MB)
sdb: Write Protect is off
sdb: Mode Sense: bd 00 00 08
SCSI device sdb: drive cache: write through
sdb: sdb1
sd 1:0:0:0: Attached scsi disk sdb
sd 1:0:0:0: Attached scsi generic sg0 type 0



[root@wapdb-node2 aneesh]# service iscsi restart
Logging out of session [sid: 2, target: iqn.1986-03.com.ibm:sn.135057127, portal: 10.0.104.202,3260]
Logout of [sid: 2, target: iqn.1986-03.com.ibm:sn.135057127, portal: 10.0.104.202,3260]: successful
Stopping iSCSI daemon:
iscsid dead but pid file exists [ OK ]
Starting iSCSI daemon: WARNING: Error inserting libiscsi2 (/lib/modules/2.6.18-164.el5/kernel/drivers/scsi/libiscsi2.ko): Unknown symbol in module, or unknown parameter (see dmesg)
FATAL: Error inserting bnx2i (/lib/modules/2.6.18-164.el5/kernel/drivers/scsi/bnx2i/bnx2i.ko): Unknown symbol in module, or unknown parameter (see dmesg)
[ OK ]
[ OK ]
Setting up iSCSI targets: Logging in to [iface: default, target: iqn.1986-03.com.ibm:sn.135057127, portal: 10.0.104.202,3260]
Login to [iface: default, target: iqn.1986-03.com.ibm:sn.135057127, portal: 10.0.104.202,3260]: successful
[ OK ]
[root@wapdb-node2 aneesh]#



[root@wapdb-node2 /]# lvdisplay
/dev/MySql/MySql: read failed after 0 of 4096 at 0: Input/output error
--- Logical volume ---
LV Name /dev/MySql/MySql
VG Name MySql
LV UUID dZ4DCD-qcxM-KnCt-xsrK-KyeM-pndo-0a5T9y
LV Write Access read/write
LV Status available
# open 1
LV Size 300.00 GB
Current LE 76800
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2