英特尔固态硬盘确实可以保留总写入数据以及可能的生命周期.

以下是英特尔X25-M G2 160GB(SSDSA2M160G2GC)

# smartctl -data -A /dev/sda

smartctl 5.40 2010-10-16 r3189 [x86_64-redhat-linux-gnu] (local build)

Copyright (C) 2002-10 by Bruce Allen,http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===

SMART Attributes Data Structure revision number: 5

Vendor Specific SMART Attributes with Thresholds:

ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_Failed RAW_VALUE

3 Spin_Up_Time 0x0020 100 100 000 Old_age Offline - 0

4 Start_Stop_Count 0x0030 100 100 000 Old_age Offline - 0

5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 1

9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 6855

12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 68

192 Unsafe_Shutdown_Count 0x0032 100 100 000 Old_age Always - 30

225 Host_Writes_32MiB 0x0030 200 200 000 Old_age Offline - 148487

226 Workld_Media_Wear_Indic 0x0032 100 100 000 Old_age Always - 3168

227 Workld_Host_Reads_Perc 0x0032 100 100 000 Old_age Always - 1

228 Workload_Minutes 0x0032 100 100 000 Old_age Always - 1950295543

232 Available_Reservd_Space 0x0033 099 099 010 Pre-fail Always - 0

233 Media_Wearout_Indicator 0x0032 098 098 000 Old_age Always - 0

184 End-to-End_Error 0x0033 100 100 099 Pre-fail Always - 0

Host_Writes_32MIB原始值显示已向此驱动器写入了多少32MiB数据单元.

Media_Wearout_Indicator值显示驱动器有效磨损寿命的标准化百分比.这从100(或099,我忘记了)开始,然后继续到001,此时英特尔认为驱动器已超过其使用寿命.英特尔也将MWI用作保修索赔的一部分 – 一旦MWI达到001,保修期就已过期.

MWI达到001并不意味着驱动器会立即失效！英特尔将内置容差来处理闪存单元的差异.我已经看到驱动器在这一点上持续了很长时间,并且我正在积极地测试一些英特尔320系列固态硬盘以查看它们持续多久.

但是,由于当MWI达到001时保修到期,我会在那时更换任何驱动器.