Hard Drive's are not getting mounted / Found

Hello,
I am running into a little bit of a issue. This morning I started my system and I was able to see all of my drives. When I did a few updates I restarted the box and now all but 2 of my four drives came back online.
So the first thing that I look at was df:

rob@xeon:~$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 93358792 3124504 85491904 4% /
udev 513204 248 512956 1% /dev
none 513204 220 512984 1% /dev/shm
none 513204 84 513120 1% /var/run
none 513204 0 513204 0% /var/lock
none 513204 0 513204 0% /lib/init/rw
/dev/sdb1 19750244 45028 18701960 1% /media/25f538f3-3c21-4a5f-a87e-5c38819078a7

Only two drives show up.

Next I went and looked at the following:

rob@xeon:~$ cat /proc/partitions && mount && sudo parted -l /dev/sda && sudo parted -l /dev/sdb
major minor #blocks name

   8 0 97855632 sda
   8 1 94847728 sda1
   8 2 1 sda2
   8 5 3004123 sda5
   8 16 20066251 sdb
   8 17 20065153 sdb1
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/rob/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=rob)
/dev/sdb1 on /media/25f538f3-3c21-4a5f-a87e-5c38819078a7 type ext2 (rw,nosuid,nodev,uhelper=devkit)
Model: ATA Maxtor 4W100H6 (scsi)
Disk /dev/sda: 100GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
 1 32.3kB 97.1GB 97.1GB primary ext4 boot
 2 97.1GB 100GB 3076MB extended
 5 97.1GB 100GB 3076MB logical linux-swap(v1)

Model: ATA MAXTOR 6L020L1 (scsi)
Disk /dev/sdb: 20.5GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
 1 32.3kB 20.5GB 20.5GB primary ext2

Model: ATA Maxtor 4W100H6 (scsi)
Disk /dev/sda: 100GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
 1 32.3kB 97.1GB 97.1GB primary ext4 boot
 2 97.1GB 100GB 3076MB extended
 5 97.1GB 100GB 3076MB logical linux-swap(v1)

Model: ATA MAXTOR 6L020L1 (scsi)
Disk /dev/sdb: 20.5GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
 1 32.3kB 20.5GB 20.5GB primary ext2

Next I looked at dmesg and think I found the problem. But I am not sure what I should do next.

rob@xeon:~$ dmesg |grep ata
[ 0.000000] BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data)
[ 0.000000] modified: 000000003fff3000 - 0000000040000000 (ACPI data)
[ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
[ 0.000000] PERCPU: Embedded 14 pages at c1805000, static data 35612 bytes
[ 0.000000] Memory: 1017660k/1048512k available (4565k kernel code, 29940k reserved, 2143k data, 540k init, 139208k highmem)
[ 0.000000] .data : 0xc0575554 - 0xc078d308 (2143 kB)
[ 0.253658] libata version 3.00 loaded.
[ 1.075815] ata_piix 0000:00:1f.1: version 2.13
[ 1.075918] ata_piix 0000:00:1f.1: setting latency timer to 64
[ 1.076136] scsi0 : ata_piix
[ 1.076378] scsi1 : ata_piix
[ 1.078069] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf000 irq 14
[ 1.078077] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf008 irq 15
[ 1.078579] pata_artop 0000:04:0a.0: version 0.4.5
[ 1.078625] pata_artop 0000:04:0a.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 1.078858] scsi2 : pata_artop
[ 1.079038] scsi3 : pata_artop
[ 1.079120] ata3: PATA max UDMA/100 cmd 0x9400 ctl 0x9800 bmdma 0xa400 irq 18
[ 1.079127] ata4: PATA max UDMA/100 cmd 0x9c00 ctl 0xa000 bmdma 0xa408 irq 18
[ 1.249541] ata2.00: ATAPI: BENQ DVD DD DW1620, B7W9, max UDMA/33
[ 1.249601] ata2.01: ATAPI: HL-DT-STDVD-ROM GDR8160B, 0009, max UDMA/66
[ 1.249788] ata1.00: ATA-6: Maxtor 4W100H6, AAH01310, max UDMA/100
[ 1.249795] ata1.00: 195711264 sectors, multi 16: LBA
[ 1.250028] ata1.01: ATA-5: MAXTOR 6L020L1, A93.0500, max UDMA/133
[ 1.250034] ata1.01: 40132503 sectors, multi 16: LBA
[ 1.252220] ata3.01: both IDENTIFYs aborted, assuming NODEV
[ 1.264965] ata2.00: configured for UDMA/33
[ 1.289956] ata1.00: configured for UDMA/100
[ 1.296738] ata2.01: configured for UDMA/66
[ 1.304435] ata1.01: configured for UDMA/100
[ 6.284047] ata3.00: qc timeout (cmd 0x27)
[ 6.284059] ata3.00: failed to read native max address (err_mask=0x4)
[ 16.448038] ata3.00: qc timeout (cmd 0x27)
[ 16.448048] ata3.00: failed to read native max address (err_mask=0x4)
[ 26.612037] ata3.00: qc timeout (cmd 0x27)
[ 26.612047] ata3.00: failed to read native max address (err_mask=0x4)
[ 26.940057] ata4.01: both IDENTIFYs aborted, assuming NODEV
[ 31.948038] ata4.00: qc timeout (cmd 0x27)
[ 31.948048] ata4.00: failed to read native max address (err_mask=0x4)
[ 42.112035] ata4.00: qc timeout (cmd 0x27)
[ 42.112045] ata4.00: failed to read native max address (err_mask=0x4)
[ 52.276035] ata4.00: qc timeout (cmd 0x27)
[ 52.276045] ata4.00: failed to read native max address (err_mask=0x4)
[ 52.433230] Write protecting the kernel read-only data: 1836k
[ 54.735243] EXT4-fs (sda1): mounted filesystem with ordered data mode

Here is lspci:

rob@xeon:~$ lspci
00:00.0 Host bridge: Intel Corporation 82860 860 (Wombat) Chipset Host Bridge (MCH) (rev 04)
00:01.0 PCI bridge: Intel Corporation 82850 850 (Tehama) Chipset AGP Bridge (rev 04)
00:02.0 PCI bridge: Intel Corporation 82860 860 (Wombat) Chipset AGP Bridge (rev 04)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 04)
00:1f.0 ISA bridge: Intel Corporation 82801BA ISA Bridge (LPC) (rev 04)
00:1f.1 IDE interface: Intel Corporation 82801BA IDE U100 Controller (rev 04)
00:1f.2 USB Controller: Intel Corporation 82801BA/BAM USB Controller #1 (rev 04)
00:1f.3 SMBus: Intel Corporation 82801BA/BAM SMBus Controller (rev 04)
00:1f.4 USB Controller: Intel Corporation 82801BA/BAM USB Controller #1 (rev 04)
00:1f.5 Multimedia audio controller: Intel Corporation 82801BA/BAM AC'97 Audio Controller (rev 04)
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AP [Radeon 9600]
01:00.1 Display controller: ATI Technologies Inc RV350 AP [Radeon 9600] (Secondary)
02:1f.0 PCI bridge: Intel Corporation 82806AA PCI64 Hub PCI Bridge (rev 03)
03:00.0 PIC: Intel Corporation 82806AA PCI64 Hub Advanced Programmable Interrupt Controller (rev 01)
04:04.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 0c)
04:0a.0 Mass storage controller: Artop Electronic Corp ATP865 (rev 03)
04:0c.0 USB Controller: NEC Corporation USB (rev 43)
04:0c.1 USB Controller: NEC Corporation USB (rev 43)
04:0c.2 USB Controller: NEC Corporation USB 2.0 (rev 04)
rob@xeon:~$

 I am currently using 2.6.31-14-generic

Here is a complete listing of sysinfo:

System information report, generated by Sysinfo: 11/22/2009 1:42:45 PM
http://sourceforge.net/projects/gsysinfo

SYSTEM INFORMATION
 Running Ubuntu Linux, the Ubuntu 9.10 (karmic) release.
 GNOME: 2.28.1 (Ubuntu 2009-11-03)
 Kernel version: 2.6.31-14-generic (#48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009)
 GCC: 4.4.1 (i486-linux-gnu)
 Xorg: unknown (26 October 2009 05:15:02PM) (26 October 2009 05:15:02PM)
 Hostname: xeon
 Uptime: 0 days 0 h 21 min

CPU INFORMATION
 GenuineIntel, Intel(R) Xeon(TM) CPU 2.00GHz
 Number of CPUs: 2
 CPU clock currently at 2004.808 MHz with 256 KB cache
 Numbering: family(15) model(1) stepping(2)
 Bogomips: 4009.61
 Flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pebs bts

MEMORY INFORMATION
 Total memory: 1002 MB
 Total swap: 2933 MB

STORAGE INFORMATION
 SCSI device - scsi0
  Vendor: ATA
  Model: Maxtor 4W100H6
 SCSI device - scsi0
  Vendor: ATA
  Model: MAXTOR 6L020L1
 SCSI device - scsi1
  Vendor: BENQ
  Model: DVD DD DW1620
 SCSI device - scsi1
  Vendor: HL-DT-ST
  Model: DVD-ROM GDR8160B

HARDWARE INFORMATION
MOTHERBOARD
 Host bridge
  Intel Corporation 82860 860 (Wombat) Chipset Host Bridge (MCH) (rev 04)
  Subsystem: Intel Corporation 82860 860 (Wombat) Chipset Host Bridge (MCH)
 PCI bridge(s)
  Intel Corporation 82850 850 (Tehama) Chipset AGP Bridge (rev 04)
  Intel Corporation 82860 860 (Wombat) Chipset AGP Bridge (rev 04)
  Intel Corporation 82801 PCI Bridge (rev 04)
  Intel Corporation 82806AA PCI64 Hub PCI Bridge (rev 03)
 USB controller(s)
  Intel Corporation 82801BA/BAM USB Controller #1 (rev 04)
  Intel Corporation 82801BA/BAM USB Controller #1 (rev 04)
  NEC Corporation USB (rev 43) (prog-if 10)
  NEC Corporation USB (rev 43) (prog-if 10)
  NEC Corporation USB 2.0 (rev 04) (prog-if 20)
 ISA bridge
  Intel Corporation 82801BA ISA Bridge (LPC) (rev 04)
 IDE interface
  Intel Corporation 82801BA IDE U100 Controller (rev 04) (prog-if 80 [Master])
  Subsystem: Intel Corporation Device 2442

GRAPHIC CARD
 VGA controller
  ATI Technologies Inc RV350 AP [Radeon 9600]
  Subsystem: ATI Technologies Inc Device 4722

SOUND CARD
 Multimedia controller
  Intel Corporation 82801BA/BAM AC'97 Audio Controller (rev 04)
  Subsystem: Iwill Corp Device 0014

NETWORK
 Ethernet controller
  Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 0c)
  Subsystem: Intel Corporation Device 0040

Thanks! Hopefully I didn't miss anything here.