FYI: WD SCORPIO je notebookový, 2,5" disk.. Navíc jej používám pár let v routeru a ničeho takového jsem si nevšiml:
CML ~ # smartctl -A /dev/sda
smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF READ SMART DATA SECTION ===
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 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 186 186 021 Pre-fail Always - 1683
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 27
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 094 093 000 Old_age Always - 4821
10 Spin_Retry_Count 0x0033 100 253 051 Pre-fail Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 24
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 9
193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 1339436
194 Temperature_Celsius 0x0022 107 097 000 Old_age Always - 40
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0009 200 200 051 Pre-fail Offline - 0
CML ~ # cat /var/log/dmesg |grep WD
ata1.00: ATA-8: WDC WD3200BEVT-00ZCT0, 11.01A11, max UDMA/133
scsi 0:0:0:0: Direct-Access ATA WDC WD3200BEVT-0 11.0 PQ: 0 ANSI: 5
qlogicfas: no cards were found, please specify I/O address and IRQ using iobase= and irq= optionsFailed initialization of WD-7000 SCSI card!
edit: všimni si položek start/stop count, load cycle count a power on hours.. 
edit2: pokud ti vadí parkování hlaviček, můžeš je vypnout pomocí příkazu hdparm -B 255 /dev/sda