У меня сейчас два ультрастара круглосуточно в NAS работают
Hitachi Ultrastar A7K2000
smartctl 6.4 2015-06-04 r4109 [x86_64-linux-4.0.5-gentoo] (local build)
Copyright © 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org
=== 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 0x000b 100 100 016 Pre-fail Always - 0
2 Throughput_Performance 0x0005 135 135 054 Pre-fail Offline - 97
3 Spin_Up_Time 0x0007 124 124 024 Pre-fail Always - 302 (Average 307)
4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 29
5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 140 140 020 Pre-fail Offline - 30
9 Power_On_Hours 0x0012 097 097 000 Old_age Always - 26811
10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 29
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 223
193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 223
194 Temperature_Celsius 0x0002 136 136 000 Old_age Always - 44 (Min/Max 19/52)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0
Количество отработанных часов видно. Пока что ни одного сбойного блока и тем более ремапов.