SCSI hiba

Sziasztok,

Van egy scsi -s disk, aminek a smartctl -a kimenete a következő:

smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

Device: COMPAQ   BD07298572       Version: HPB0
Serial number: AAS1P49005VP0437
Device type: disk
Transport protocol: Parallel SCSI (SPI-4)
Local Time is: Sun Jun 22 16:39:15 2008 CEST
Device supports SMART and is Enabled
Temperature Warning Enabled
SMART Health Status: SERVO IMPENDING FAILURE DATA ERROR RATE TOO HIGH [asc=5d, ascq=42]

Current Drive Temperature:     34 C
Drive Trip Temperature:        65 C
Manufactured in week 37 of year 2004
Recommended maximum start stop count:  10000 times
Current start stop count:      74 times
Elements in grown defect list: 3

Error counter log:
           Errors Corrected by           Total   Correction     Gigabytes    Total
               ECC          rereads/    errors   algorithm      processed    uncorrected
           fast | delayed   rewrites  corrected  invocations   [10^9 bytes]  errors
read:          0        0         0         0          0          0.000           0
write:         0        0         0         0          0          0.000           0

Non-medium error count:      394

SMART Self-test log
Num  Test              Status                 segment  LifeTime  LBA_first_err [SK ASC ASQ]
     Description                              number   (hours)
# 1  Background long   Failed in segment -->       3   12202                 - [0x6 0x5d 0x42]
# 2  Background long   Failed in segment -->       3   12191                 - [0x6 0x5d 0x42]
# 3  Background short  Failed in segment -->       3   12190                 - [0x6 0x5d 0x42]
# 4  Background short  Failed in segment -->       3   12166                 - [0x6 0x5d 0x42]
# 5  Background short  Failed in segment -->       3   12141                 - [0x6 0x5d 0x42]
# 6  Background short  Failed in segment -->       3   12117                 - [0x6 0x5d 0x42]
# 7  Background short  Failed in segment -->       3   12093                 - [0x6 0x5d 0x42]
# 8  Background short  Failed in segment -->       3   12069                 - [0x6 0x5d 0x42]
# 9  Background short  Failed in segment -->       3   12045                 - [0x6 0x5d 0x42]
#10  Background long   Failed in segment -->       3   12023                 - [0x6 0x5d 0x42]
#11  Background short  Failed in segment -->       3   12021                 - [0x6 0x5d 0x42]
#12  Background short  Failed in segment -->       3   11997                 - [0x6 0x5d 0x42]
#13  Background short  Failed in segment -->       3   11973                 - [0x6 0x5d 0x42]
#14  Background short  Failed in segment -->       3   11949                 - [0x6 0x5d 0x42]
#15  Background short  Failed in segment -->       3   11925                 - [0x6 0x5d 0x42]
#16  Background short  Failed in segment -->       3   11901                 - [0x6 0x5d 0x42]
#17  Background short  Failed in segment -->       3   11877                 - [0x6 0x5d 0x42]
#18  Background long   Failed in segment -->       3   11855                 - [0x6 0x5d 0x42]
#19  Background short  Failed in segment -->       3   11853                 - [0x6 0x5d 0x42]
#20  Background short  Failed in segment -->       3   11829                 - [0x6 0x5d 0x42]

Long (extended) Self Test duration: 2016 seconds [33.6 minutes]

Van eza sor az elején: SERVO IMPENDING FAILURE DATA ERROR RATE TOO HIGH [asc=5d, ascq=42]
Ez kicsit aggaszt, és persze a smart tesztek erre a hibára (0x42) hivatkozva nem futnak le. Sokat nem volt használva a disk. ~1 évet, előtte csak állt. Lehet, hogy cak rossz smart infót adna vissza? Egészen pontosan milyen hiba is lenne ez? Ennyire nem értek a diskek fizikai felépítéséhez. Sebességével nincs gond:

# hdparm -tT /dev/sdb5

/dev/sdb5:
 Timing cached reads:   9556 MB in  2.00 seconds = 4788.97 MB/sec
 Timing buffered disk reads:  242 MB in  3.01 seconds =  80.51 MB/sec

Szóval mit tehetek, van valami más eszköz, amivel tesztelhetném?