Both disks are the 'stock' 30GB Fujitsu disks.
Here's the output from 'smartctl -a' for the first disk (/dev/hda)

empeg:/drive0/var#./smartctl -a /dev/hda
smartctl version 5.33 [arm-empeg-linux-gnu] Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

Warning! Drive Identity Structure error: invalid SMART checksum.
=== START OF INFORMATION SECTION ===
Device Model: FUJITSU MHL2300AT
Serial Number: 01014825
Firmware Version: 3022
User Capacity: 30,005,821,440 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 5
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Sat Sep 11 16:54:27 2004 /usr/local/armtools

==> WARNING: This drive's firmware has a harmless Drive Identity Structure
checksum error bug.

SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 364) seconds.
Offline data collection
capabilities: (0x1b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
No General Purpose Logging support.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 48) minutes.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x100b 100 099 032 Pre-fail Always - 161353
2 Throughput_Performance 0x0005 100 100 020 Pre-fail Offline - 0
3 Spin_Up_Time 0x0007 100 100 025 Pre-fail Always - 2
4 Start_Stop_Count 0x0012 065 065 016 Old_age Always - 21077
5 Reallocated_Sector_Ct 0x0033 100 100 024 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 090 020 Pre-fail Always - 665
8 Seek_Time_Performance 0x0005 100 100 019 Pre-fail Offline - 0
9 Power_On_Seconds 0x0012 097 097 020 Old_age Always - 581h+54m+49s
10 Spin_Retry_Count 0x0013 100 100 020 Pre-fail Always - 0
12 Power_Cycle_Count 0x0012 074 074 020 Old_age Always - 4048
196 Reallocated_Event_Count 0x0033 100 100 024 Pre-fail Always - 0
198 Offline_Uncorrectable 0x0010 100 100 020 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x000b 100 100 020 Pre-fail Always - 16463
203 Run_Out_Cancel 0x0002 097 097 020 Old_age Always - 416612089872

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 581 -
# 2 Short offline Completed without error 00% 580 -

Device does not support Selective Self Tests/Logging
empeg:/drive0/var#


AND output from drive 2 (the one with the errors, /dev/hdc )

empeg:/drive0/var# ./smartctl -a /dev/hdc
smartctl version 5.33 [arm-empeg-linux-gnu] Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

Warning! Drive Identity Structure error: invalid SMART checksum.
=== START OF INFORMATION SECTION ===
Device Model: FUJITSU MHL2300AT
Serial Number: 01012327
Firmware Version: 3022
User Capacity: 30,005,821,440 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 5
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Sat Sep 11 16:56:57 2004 /usr/local/armtools

==> WARNING: This drive's firmware has a harmless Drive Identity Structure
checksum error bug.

SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 1) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 364) seconds.
Offline data collection
capabilities: (0x1b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
No General Purpose Logging support.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 48) minutes.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x100b 100 091 032 Pre-fail Always - 85110
2 Throughput_Performance 0x0005 100 100 020 Pre-fail Offline - 0
3 Spin_Up_Time 0x0007 100 100 025 Pre-fail Always - 2
4 Start_Stop_Count 0x0012 051 051 016 Old_age Always - 29040
5 Reallocated_Sector_Ct 0x0033 099 099 024 Pre-fail Always - 3
7 Seek_Error_Rate 0x000b 100 100 020 Pre-fail Always - 3001
8 Seek_Time_Performance 0x0005 100 100 019 Pre-fail Offline - 0
9 Power_On_Seconds 0x0012 061 061 020 Old_age Always - 5865h+54m+12s
10 Spin_Retry_Count 0x0013 100 100 020 Pre-fail Always - 0
12 Power_Cycle_Count 0x0012 074 074 020 Old_age Always - 3953
196 Reallocated_Event_Count 0x0033 099 099 024 Pre-fail Always - 3
198 Offline_Uncorrectable 0x0010 100 100 020 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x000b 100 099 020 Pre-fail Always - 3102
203 Run_Out_Cancel 0x0002 096 096 020 Old_age Always - 416610910203

SMART Error Log Version: 1
Warning: ATA error count 0 inconsistent with error log pointer 4

ATA Error Count: 0
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 0 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
When the command that caused the error occurred, the device was in an unknown state.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
51 0e 03 00 ce 89 dd at LBA = 0x0d89ce00 = 227134976

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
40 20 0c 02 00 00 00 50 12d+10:16:38.403 READ VERIFY SECTOR(S)
00 00 00 00 00 00 00 00 00:00:56.579 NOP [Abort queued commands]

Error -1 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
When the command that caused the error occurred, the device was in an unknown state.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
ce 89 f0 51 03 00 ce Error: ABRT

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
00 ce 50 20 8b 05 00 89 00:00:16.384 NOP [Reserved subcommand]
00 00 00 00 00 00 00 00 00:00:00.000 NOP [Abort queued commands]

Error -2 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
When the command that caused the error occurred, the device was in an unknown state.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
dd 00 89 ce f0 51 03

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
02 dd 89 ce 50 20 ae 03 12:29:17.696 [RESERVED]

Error -3 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
40 51 03 dd 89 ce f0 Error: UNC at LBA = 0x00ce89dd = 13535709

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
20 00 03 dd 89 ce 50 00 6d+06:35:14.519 READ SECTOR(S)

Error -4 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
When the command that caused the error occurred, the device was in an unknown state.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
00 03 ce 89 dd 0e 8a

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
dc a6 03 00 00 40 04 c9 42d+17:21:42.537 BOOT POST-BOOT [RET-4]
dc 00 00 00 00 00 04 00 42d+17:21:42.537 BOOT POST-BOOT [RET-4]

SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]


Device does not support Selective Self Tests/Logging
empeg:/drive0/var#