我有一块新的 1TB Sandisk SSD（SDSSDA-1T00-G27），除了 SMART 属性 #9“Power_On_Hours”进展非常缓慢外，其他都运行良好。大多数人不会在意，但这让我很困扰，所以我联系了 SanDisk 支持。他们让我运行他们的诊断程序，该诊断程序只能在 Windows 上运行，所以我将驱动器移到了我的 Windows 计算机上。一切都通过了，而且该实用程序还声称开机时间同样短得可笑；大约 7 小时，而应该是 2 周。
他们给我发了一个新的，但出乎意料的是，还是一样。我已经将它放在我的 Linux 服务器上超过 24 小时了，但它仍然显示 0 小时。我还没有对它进行分区或安装，所以它没有看到任何活动，但是，hdparm -I它反复Advanced power management level: 254返回，hdparm -C所以 drive state is: active/idle它没有休眠。
我可能没有办法改变这种行为，但我想知道是否有其他人遇到过这种情况，以及他们是否知道发生了什么。从这个角度来看，过去 15 年来我使用过的每个 HDD 和 SSD 都表现正常，包括 9-10 年前的另一台 Sandisk。
我怀疑它只计算主动使用量，如果这是真的，那就很奇怪了。
以下是 的完整输出smartctl -x。提醒一下，在编辑时，此驱动器已在系统中通电约 48 小时，但尚未分区或安装。我想看看它在没有读/写的情况下的表现。
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.1.0-28-amd64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Marvell based SanDisk SSDs
Device Model: SanDisk SSD PLUS 1000GB
Serial Number: <deleted>
LU WWN Device Id: 5 001b44 8c62efa27
Firmware Version: 42077100
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available, deterministic
Device is: In smartctl database 7.3/5319
ATA Version is: ACS-4, ACS-2 T13/2015-D revision 3
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Tue Mar 11 08:02:07 2025 CDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is: Unavailable
APM level is: 254 (maximum performance)
Rd look-ahead is: Enabled
Write cache is: Enabled
DSN feature is: Unavailable
ATA Security is: Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: Unavailable
=== 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: ( 0) seconds.
Offline data collection
capabilities: (0x71) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
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.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 10) minutes.
Conveyance self-test routine
recommended polling time: ( 1) minutes.
SMART Attributes Data Structure revision number: 0
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
5 Reallocated_Sector_Ct -O--CK 100 100 010 - 0
9 Power_On_Hours -O--CK 100 100 000 - 0
12 Power_Cycle_Count -O--CK 100 100 000 - 3
165 Total_Write/Erase_Count -O--CK 100 100 000 - 0
166 Min_W/E_Cycle -O--CK 100 100 000 - 0
167 Min_Bad_Block/Die -O--CK 100 100 000 - 19
168 Maximum_Erase_Cycle -O--CK 100 100 000 - 0
169 Total_Bad_Block -O--CK 100 100 000 - 176
170 Unknown_Marvell_Attr -O--CK 100 100 000 - 0
171 Program_Fail_Count -O--CK 100 100 000 - 0
172 Erase_Fail_Count -O--CK 100 100 000 - 0
173 Avg_Write/Erase_Count -O--CK 100 100 005 - 0
174 Unexpect_Power_Loss_Ct -O--CK 100 100 000 - 0
184 End-to-End_Error -O--CK 100 100 097 - 0
187 Reported_Uncorrect -O--CK 100 100 000 - 0
188 Command_Timeout -O--CK 100 100 000 - 0
194 Temperature_Celsius -O---K 100 100 014 - 24 (Min/Max 21/28)
199 SATA_CRC_Error -O--CK 100 100 000 - 0
230 Perc_Write/Erase_Count -O--CK 100 100 000 - 0 0 0
232 Perc_Avail_Resrvd_Space PO--CK 100 100 004 - 100
233 Total_NAND_Writes_GiB -O--CK 100 100 000 - 0
234 Perc_Write/Erase_Ct_BC -O--CK 100 100 000 - 0
241 Total_Writes_GiB ----CK 253 253 000 - 0
242 Total_Reads_GiB ----CK 253 253 000 - 0
244 Thermal_Throttle -O--CK 100 100 000 - 0
||||||_ K auto-keep
|||||__ C event count
||||___ R error rate
|||____ S speed/performance
||_____ O updated online
|______ P prefailure warning
General Purpose Log Directory Version 1
SMART Log Directory Version 1 [multi-sector log support]
Address Access R/W Size Description
0x00 GPL,SL R/O 1 Log Directory
0x01 SL R/O 1 Summary SMART error log
0x02 SL R/O 1 Comprehensive SMART error log
0x03 GPL R/O 16 Ext. Comprehensive SMART error log
0x04 GPL,SL R/O 8 Device Statistics log
0x06 SL R/O 1 SMART self-test log
0x07 GPL R/O 1 Extended self-test log
0x09 SL R/W 1 Selective self-test log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters log
0x30 GPL,SL R/O 9 IDENTIFY DEVICE data log
0x80-0x9f GPL,SL R/W 16 Host vendor specific log
0xa0-0xa1 GPL,SL VS 1 Device vendor specific log
0xa2 GPL,SL VS 2 Device vendor specific log
0xa3-0xa7 GPL,SL VS 1 Device vendor specific log
0xde GPL,SL VS 1 Device vendor specific log
SMART Extended Comprehensive Error Log Version: 1 (16 sectors)
No Errors Logged
SMART Extended Self-test Log Version: 1 (1 sectors)
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
SCT Commands not supported
Device Statistics (GP Log 0x04)
Page Offset Size Value Flags Description
0x01 ===== = = === == General Statistics (empty) ==
0x05 ===== = = === == Temperature Statistics (empty) ==
0x07 ===== = = === == Solid State Device Statistics (empty) ==
|||_ C monitored condition met
||__ D supports DSN
|___ N normalized value
Pending Defects log (GP Log 0x0c) not supported
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x0001 2 0 Command failed due to ICRC error
0x0004 2 0 R_ERR response for host-to-device data FIS
0x0006 2 0 R_ERR response for device-to-host non-data FIS
0x0007 2 0 R_ERR response for host-to-device non-data FIS
0x0009 2 0 Transition from drive PhyRdy to drive PhyNRdy
0x000a 2 2 Device-to-host register FISes sent due to a COMRESET
0x000f 2 0 R_ERR response for host-to-device data FIS, CRC
0x0013 2 0 R_ERR response for host-to-device non-data FIS, non-CRC