my hp proliant DL185 server doesn't boot up as expected .

i've managed to capture the msgs & traces dumped to console. See below

Quote:
end_request: I/O error, dev cciss/c0d2, sector 0
end_request: I/O error, dev cciss/c0d2, sector 0
end_request: I/O error, dev cciss/c0d2, sector 1
Quote:
ciss: cmd f6c00000 has CHECK CONDITION sense key = 0x4
end_request: I/O error, dev cciss/c0d3, sector 0
cciss: cmd f6c00000 has CHECK CONDITION sense key = 0x4
end_request: I/O error, dev cciss/c0d3, sector 0
Quote:
backtrace from SysRq -w

SysRq : Show Blocked State
f7ad1e40 00203082 f7853b90 e54af7f0 e54af948 cba30e00 00000001 00000020
e5ad2250 00000000 000000ff e5ad2250 00000000 00000000 00000000 7fffffff
e55afe00 e55afd44 e55afe04 c05ab1c5 256e2000 00000000 e56e2000 00000000
Call Trace:
[] schedule_timeout+0x13/0x86
[] wait_for_common+0xb9/0x103
[] default_wake_function+0x0/0x8
[] cciss_ioctl+0x6fb/0xd1e
[] read_tsc+0x6/0x22
[] getnstimeofday+0x4a/0xca
[] tick_dev_program_event+0x1e/0x8c
[] dput+0x31/0xf7
[] __link_path_walk+0x9fd/0xb2b
[] blkdev_driver_ioctl+0x4b/0x5b
[] igmp_rcv+0x38f/0x496
[] blkdev_ioctl+0x697/0x6e5
[] igmp_rcv+0x38f/0x496
[] igmp_rcv+0x38f/0x496
[] do_open+0x1d9/0x258
[] blkdev_open+0x0/0x4d
[] blkdev_open+0x25/0x4d
[] __dentry_open+0x13b/0x212
[] nameidata_to_filp+0x1c/0x2c
[] do_filp_open+0x350/0x64d
[] do_futex+0x8a/0x6ee
[] handle_mm_fault+0x4e0/0x4ea
[] igmp_rcv+0x38f/0x496
[] block_ioctl+0x13/0x16
[] block_ioctl+0x0/0x16
[] vfs_ioctl+0x1c/0x5d
[] do_vfs_ioctl+0x239/0x247
[] do_sys_open+0xae/0xb6
[] sys_ioctl+0x41/0x58
[] sysenter_do_call+0x12/0x25
[] igmp_rcv+0x38f/0x496
Any thoughts on what could be wrong here???

Thanks in advance,
David