I been getting several errors in my /var/log/messages. Its the one listed below:

Nov 29 05:51:33 MARS kernel: st0: Error with sense data: Current st09:00: sense key Not Ready
Nov 29 05:51:33 MARS kernel: Additional sense indicates Medium not present

Anybody could help me find out what could make it go away.

Have this in my /proc/scsi/scsi:

cat proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: SEAGATE Model: DAT DAT72-052 Rev: A060
Type: Sequential-Access ANSI SCSI revision: 03
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: MegaRAID Model: LD 0 RAID5 139G Rev: 513O
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi2 Channel: 04 Id: 06 Lun: 00
Vendor: PE/PV Model: 1x6 SCSI BP Rev: 1.0
Type: Processor ANSI SCSI revision: 02


my lsmod:

Module Size Used by Not tainted
audit 90552 3
e1000 76956 1
ipt_state 1080 7 (autoclean)
ip_conntrack 29736 1 (autoclean) [ipt_state]
iptable_filter 2412 1 (autoclean)
ip_tables 16544 2 [ipt_state iptable_filter]
microcode 6848 0 (autoclean)
st 31364 0
loop 12696 0 (autoclean)
keybdev 2976 0 (unused)
mousedev 5624 0 (unused)
hid 22276 0 (unused)
input 6144 0 [keybdev mousedev hid]
ehci-hcd 20776 0 (unused)
usb-uhci 26956 0 (unused)
usbcore 81056 1 [hid ehci-hcd usb-uhci]
ext3 89960 10
jbd 55060 10 [ext3]
lvm-mod 64992 21
megaraid2 37928 2
aic7xxx 163088 0
diskdumplib 3776 0 [aic7xxx]
sd_mod 13712 4
scsi_mod 114344 4 [st megaraid2 aic7xxx sd_mod]

my lspci:

00:00.0 Host bridge: Intel Corp. Server Memory Controller Hub (rev 09)
00:02.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port A0 (rev 09)
00:04.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port B0 (rev 09)
00:05.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port B1 (rev 09)
00:06.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port C0 (rev 09)
00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 (rev 02)
00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 (rev 02)
00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3 (rev 02)
00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC Bridge (rev 02)
00:1f.1 IDE interface: Intel Corp. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100 Storage Controller (rev 02)
01:00.0 PCI bridge: Intel Corp. 80332 [Dobson] I/O processor (rev 06)
01:00.2 PCI bridge: Intel Corp. 80332 [Dobson] I/O processor (rev 06)
02:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller 4 (rev 06)
05:00.0 PCI bridge: Intel Corp. PCI Bridge Hub A (rev 09)
05:00.2 PCI bridge: Intel Corp. PCI Bridge Hub B (rev 09)
06:07.0 Ethernet controller: Intel Corp. 82541GI/PI Gigabit Ethernet Controller (rev 05)
07:08.0 Ethernet controller: Intel Corp. 82541GI/PI Gigabit Ethernet Controller (rev 05)
08:00.0 PCI bridge: Intel Corp. PCI Bridge Hub A (rev 09)
08:00.2 PCI bridge: Intel Corp. PCI Bridge Hub B (rev 09)
0a:03.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01)
0a:03.1 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01)
0b:0d.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]

Thanks in advance.