我的内部WD20EARS磁盘不会自动降速。我试过hdparm -S 1（5 秒），但什么也没发生。我禁用了 IntelliPower 磁头停放功能wdiddle3 的翻译结果: ...来自 Ultimate Boot CD。hdparm -y旋转磁盘。
安装程序是在 i5-4590 CPU 上的 Archlinux，并带有微星 B85I主板（UEFI）。HDD不是系统盘。AHCI是在UEFI中设置的。我照做了journalctl -f | grep /dev/sdb，不知为何磁盘没用。
有没有可能启用自动旋转？
smartctl -a输出：
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.15.1-1-ARCH] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green (AF)
Device Model: WDC WD20EARS-00J2GB0
Serial Number: WD-WCAYY0226656
LU WWN Device Id: 5 0014ee 25a25795a
Firmware Version: 80.00A80
User Capacity: 2.000.398.934.016 bytes [2,00 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Sat Jun 21 15:04:37 2014 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x84) Offline data collection activity
was suspended by an interrupting command from host.
Auto Offline Data Collection: Enabled.
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: (38760) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 442) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x3031) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.
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 196 161 021 Pre-fail Always - 7175
4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1441
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
9 Power_On_Hours 0x0032 094 094 000 Old_age Always - 4723
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 911
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 245
193 Load_Cycle_Count 0x0032 176 176 000 Old_age Always - 74456
194 Temperature_Celsius 0x0022 110 094 000 Old_age Always - 42
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 0x0008 200 200 000 Old_age Offline - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 4187 -
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.
答案1
由于某种原因，该 HDD 对hdparm -S设置的解释与预期不同。
通常情况下，如果您在范围内指定hdparm -S值1-240，则会导致 5 秒的数值减速超时。但不能保证它对所有硬盘都以完全相同的方式工作，而 WD20EARS 恰好是例外之一。
我可以通过指定 来让它在 10 分钟内停止旋转hdparm -S 3。我找到了解决办法这邮政。
答案2
另一种解决方案是使用赫迪德尔。 这对我来说可以。