SeaChest Utilities 希捷机械硬盘调优，让你的硬盘更快更省电
文章目录
- SeaChest Utilities 希捷机械硬盘调优，让你的硬盘更快更省电
- 前言
- SeaChest Utilities
- SeaChest_PowerControl 工具
- Linux Usage
- Windows Usage（管理员模式）
- 命令返回值
- 工具基本选项
- 工具参数
- 仅限 SATA 的参数
- 仅限 SAS 的参数
- 仅限 NVMe 的参数
- 个人优化过程
- 查看硬盘
- 调整 APM
- 更改硬盘 EPC 策略
- PowerBalance 模式改善随机读写
- 总结
本文主要通过希捷官方提供的 SeaChest Utilities 工具，对希捷的机械硬盘进行调优以减少运行时功耗，并提高硬盘的寿命。
如果觉得本文对您有用，还请你留个赞留个关注！
前言
说到硬盘，现在大家可能更加注重固态硬盘。相比于固态硬盘，机械硬盘往往速度慢，而且声音大。但是机械硬盘的容量性价比，仍然是固态硬盘难以比肩的。
在不久前，笔者家中自行搭建了一台 All-in-one 的 nas 服务器，并且在机械硬盘的设置上遇到了棘手的性能问题。为了让硬盘能运行的快，同时又想要它尽可能的低功耗，笔者在这里做了不少功夫，也遇到了 APM 和 C1 门这样的问题。为了给后面的人一个提醒，笔者也写下此篇文章，记录自己的调优过程。
SeaChest Utilities
SeaChest Utilities 是希捷官方出的，专门针对希捷 Seagate 硬盘参数调整的命令行工具包。在这个工具包中，目前具有信息查看、硬盘测试、硬盘安全、SMART控制、硬盘格式化和硬盘清除等功能。
通过 SeaChest Utilities，我们可以做到许多普通的硬盘调整工具无法做到的事情，例如关闭希捷硬盘中的 EPC 功能等。如果读者对 Western Data 西数的硬盘比较熟悉的话，那么可以说 SeaChest Utilitilies 就相当于西数的 wdidle3。
SeaChest Utilities 的官方页面及安装页面：点击此处
下载并安装 SeaChest Utilities 的工具包，之后可以在桌面的快捷方式进入其命令行环境，或者在 windows 的管理员模式下将当前路径切换至安装目录下，再使用命令行操作。
目前的工具包中总共含有以下的工具：
工具名称功能
| SeaChest_Basics | 基本状态设置 |
| SeaChest_Configure | 其他设置 |
| SeaChest_Erase | 硬盘清除 |
| SeaChest_Firmware | 硬盘固件相关 |
| SeaChest_GenericTests | 硬盘测试 |
| SeaChest_Info | 硬盘信息 |
| SeaChest_Lite | 轻量级的信息查询工具 |
| SeaChest_NVMe | NVMe相关 |
| SeaChest_PowerControl | 硬盘能耗优化 |
| SeaChest_Security | 硬盘安全相关 |
| SeaChest_SMART | SMART相关 |
本文中只使用 SeaChest_PowerControl 工具对硬盘进行调整。
SeaChest_PowerControl 工具
Linux Usage
SeaChest_PowerControl [-d <sg_device>] {arguments} {options}
Linux 的例子
sudo SeaChest_PowerControl --scansudo SeaChest_PowerControl -d /dev/sg2 -isudo SeaChest_PowerControl -d /dev/sg1 --deviceInfosudo SeaChest_PowerControl -d /dev/sg3 --showEPCSettingssudo SeaChest_PowerControl -d /dev/sg2 --idle_a 5000sudo SeaChest_PowerControl -d /dev/sg1 --idle_b disablesudo SeaChest_PowerControl -d /dev/sg3 --transitionPower standby_zsudo SeaChest_PowerControl -d /dev/sg45 --idle_a 5000 --standby_z 30000 --idle_b enable --idle_c disable
Windows Usage（管理员模式）
SeaChest_PowerControl [-d <PD_device>] {arguments} {options}
Windows 的例子
SeaChest_PowerControl --scanSeaChest_PowerControl -d PD0 -iSeaChest_PowerControl -d PD1 --deviceInfoSeaChest_PowerControl -d PD3 --showEPCSettingsSeaChest_PowerControl -d PD2 --idle_a 5000SeaChest_PowerControl -d PD1 --idle_b disableSeaChest_PowerControl -d PD3 --transitionPower standby_zSeaChest_PowerControl -d PD45 --idle_a 5000 --standby_z 30000 --idle_b enable --idle_c disable
命令返回值
0 = No Error Found
1 = Error in command line options
2 = Invalid Device Handle or Missing Device Handle
3 = Operation Failure
4 = Operation not supported
5 = Operation Aborted
6 = File Path Not Found
7 = Cannot Open File
8 = File Already Exists
9 = Need Elevated Privileges
Anything else = unknown error
工具基本选项
--echoCommandLineEcho the command line entered into the utility on the screen.--enableLegacyUSBPassthroughOnly use this option on old USB or IEEE1394 (Firewire)products that do not otherwise work with the tool.This option will enable a trial and error method thatattempts sending various ATA Identify commands throughvendor specific means. Because of this, certain productsthat may respond in unintended ways since they may interpretthese commands differently than the bridge chip the commandwas designed for.--forceATAUsing this option will force the current drive tobe treated as a ATA drive. Only ATA commands willbe used to talk to the drive.--forceATADMA(SATA Only)Using this option will force the tool to issue SATcommands to ATA device using the protocol set to DMAwhenever possible (on DMA commands).This option can be combined with --forceATA--forceATAPIO(SATA Only)Using this option will force the tool to issue PIOcommands to ATA device when possible. This option canbe combined with --forceATA--forceATAUDMA(SATA Only)Using this option will force the tool to issue SATcommands to ATA device using the protocol set to UDMAwhenever possible (on DMA commands).This option can be combined with --forceATA--forceSCSIUsing this option will force the current drive tobe treated as a SCSI drive. Only SCSI commands willbe used to talk to the drive.-h, --helpShow utility options and example usage (this output you see now)Please report bugs/suggestions to seaboard@seagate.com.Include the output of --version information in the email.--licenseDisplay the Seagate End User License Agreement (EULA).--modelMatch [model Number]Use this option to run on all drives matching the providedmodel number. This option will provide a closest match althoughan exact match is preferred. Ex: ST500 will match ST500LM0001--onlyFW [firmware revision]Use this option to run on all drives matching the providedfirmware revision. This option will only do an exact match.--onlySeagateUse this option to match only Seagate drives for the optionsprovided-q, --quietRun SeaChest_PowerControl in quiet mode. This is the same as-v 0 or --verbose 0-v [0-4], --verbose [0 | 1 | 2 | 3 | 4]Show verbose information. Verbosity levels are:0 - quiet1 - default2 - command descriptions3 - command descriptions and values4 - command descriptions, values, and data buffersExample: -v 3 or --verbose 3-V, --versionShow SeaChest_PowerControl version and copyright information & exit
工具参数
-d, --device deviceHandleUse this option with most commands to specify the devicehandle on which to perform an operation. Example: /dev/sg?-F, --scanFlags [option list]Use this option to control the output from scan with theoptions listed below. Multiple options can be combined.ata - show only ATA (SATA) devicesusb - show only USB devicesscsi - show only SCSI (SAS) devicesnvme - show only NVMe devicesinterfaceATA - show devices on an ATA interfaceinterfaceUSB - show devices on a USB interfaceinterfaceSCSI - show devices on a SCSI or SAS interfaceinterfaceNVME = show devices on an NVMe interfacesd - show sd device handlessgtosd - show the sd and sg device handle mapping-i, --deviceInfoShow information and features for the storage device-s, --scanScan the system and list all storage devices with logical/dev/sg? assignments. Shows model, serial and firmwarenumbers. If your device is not listed on a scan immediatelyafter booting, then wait 10 seconds and run it again.-S, --ScanThis option is the same as --scan or -s,however it will also perform a low level rescan to pick upother devices. This low level rescan may wake devices from lowpower states and may cause the OS to re-enumerate them.Use this option when a device is plugged in and not discovered ina normal scan.NOTE: A low-level rescan may not be available on all interfaces orall OSs. The low-level rescan is not guaranteed to find additionaldevices in the system when the device is unable to come to a ready state.--SATInfoDisplays SATA device information on any interfaceusing both SCSI Inquiry / VPD / Log reported data(translated according to SAT) and the ATA Identify / Logreported data.--testUnitReadyIssues a SCSI Test Unit Ready command and displays thestatus. If the drive is not ready, the sense key, asc,ascq, and fru will be displayed and a human readabletranslation from the SPC spec will be displayed if oneis available.--checkPowerModeGet the current power mode of a drive.On SCSI devices, this will only work if the drive hastransitioned from active state to another state.--EPCfeature [enable | disable]Enables or disables Extended Power Conditions (EPC) support fordevices. To disable EPC use --EPCfeature disable. Note that theEPC Feature Set is not supported on all devices.Use --deviceInfo option to see if EPC is supported.WARNING: The EPC settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--idle_a [ enable | disable | default | timerValueMilliseconds ]Use this setting to change the EPC Idle_A power mode settings.enable - enable the power statedisable - disable the power statedefault - restore default settings for this power statetimerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.EPC spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--idle_b [ enable | disable | default | timerValueMilliseconds ]Use this setting to change the EPC Idle_B power mode settings.enable - enable the power statedisable - disable the power statedefault - restore default settings for this power statetimerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.EPC spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--idle_c [ enable | disable | default | timerValueMilliseconds ]Use this setting to change the EPC Idle_C power mode settings.enable - enable the power statedisable - disable the power statedefault - restore default settings for this power statetimerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.EPC spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--powerMeasurementMode [all | 5 | 12](Seagate Only)Use this option along with --requestPowerMeasurement to specifywhich sources to measure power on for the requested time.all - measure all power sources5 - measure only the 5v power12 - measure only the 12v power--requestPowerMeasurement [seconds to perform measurement](Seagate Only)This option is used to specify a time to perform a powermeasurement for. The minimum measurement time is 22 secondsand the maximum is 65535 seconds. If a time less than 22 secondsis provided, 22 seconds will be used by the drive. A value greaterthan 65535 will result in error.Use the --powerMeasurementMode option to specify which mode to measure.--powerBalanceFeature [ info | enable | disable ] (Seagate Only)Use this option to see the state of the Seagate Power Balancefeature or to change its state.Seagate's PowerBalance feature will adjust drive performance duringrandom operations to reduce power consumption of the drive.info - will dump the state of the Power Balance feature on the screenenable - use this to enable Power Balancedisable - use this to disable Power BalanceNote: While this feature is available on some SAS products,it is recommended that the --setPowerConsumption option isused instead since it allows more levels of control.This option and the --setPowerConsumption option are incompatiblebecause they use the same mode page fields (1Ah-01h).WARNING: Seagate Power Balance may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--showEPCSettingsUse this option to show the current EPC settings on the screen.Only drives supporting the EPC feature will show this data andonly supported power conditions will be shown.--showPowerTelemetry(Seagate Only)Use this option to show the power telemetry data froma Seagate drive that supports the power telemetry featureIf a measurement was not previously requested, this will showfree-running mode data from the last 10 minutes.If this option is provided while a measurement is stillin progress, this will show all data that is currently availableUse the --requestPowerMeasurement option to request a powermeasurement with a set time window.NOTE: Power measurements are for the full device, not inpiduallogical units. All logical units will be measured for this data.--spinDownRemoves power to the disk drive motor with the Standby Immediatecommand. Use this before moving a hard disk drive. The drivewill spin back up if the operating system selects the drive.This means that an active drive will not stay spun down.WARNING: Spindown may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--standby [ enable | disable | default | timerValueMilliseconds ] (Some settings are SAS only)Use this setting to change the standby power mode settings.NOTE: This is the legacy standby timer before EPC drives.If this is used on an EPC drive, this will modifythe standby_z power state and timer values.enable - enable the power state(SAS Only)disable - disable the power state(SAS Only)default - restore default settings for this power state(SAS Only)timerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.Spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.ATA drives can only change the standby timer, not disable it.On ATA drives, the standby timer set by this command is volatileand drive defaults are restored on next power cycle.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--standby_y [ enable | disable | default | timerValueMilliseconds ]Use this setting to change the EPC Standby_Y power mode settings.enable - enable the power statedisable - disable the power statedefault - restore default settings for this power statetimerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.EPC spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--standby_z [ enable | disable | default | timerValueMilliseconds ]Use this setting to change the EPC Standby_Z power mode settings.enable - enable the power statedisable - disable the power statedefault - restore default settings for this power statetimerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.EPC spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--transitionPower [active | idle | idleUnload | standby | idle_a | idle_b | idle_c | standby_y | standby_z | sleep]Use this option to transition the drive to a specific power state.EPC and legacy power states are supported. EPC states are only availableon devices supporting the EPC feature.Supported power states:activeidle - idle mode (legacy mode equivalent to idle_a on EPC)idleUnload - same as above, but heads are unloaded. This may notbe supported on all devices.standby - standby mode (legacy mode equivalent to standby_z on EPC)idle_a - EPC idle modeidle_b - EPC lower power idle modeidle_c - EPC lowest power idle modestandby_y - EPC low power standby modestandby_z - EPC lowest power standby modesleep - Sleep state. WARNING: This requires a reset to wake from.Once in this state, this tool cannot wake the drive on its own.The OS or adapter will need to issue a reset, which may or may not happen.WARNING: Transitioning power modes may affect all LUNs/namespacesfor devices with multiple logical units or namespaces.
仅限 SATA 的参数
--disableAPM (SATA Only)Use this option to disable the APM feature on a device.Note: This command is optional and some device may notdisabling the APM feature.--sataDAPSfeature [info | enable | disable](SATA Only)Use this option to enable or disable the SATA Device AutomaticPartial To Slumber Transitions (DAPS) feature. Use the "info"option to see the current state of the DIPM feature on the device.The use of this feature requires that the DIPM feature is enabled.NOTE: Please ensure that the host adapter/controller/driver canhandle this before enabling it, otherwise the drive link maygo down and the device will not be able to communicate.--sataDIPMfeature [info | enable | disable](SATA Only)Use this option to enable or disable the SATA Device InitiatedPower Management (DIPM) feature. Use the "info" option to seethe current state of the DIPM feature on the device.NOTE: Please ensure that the host adapter/controller/driver canhandle this before enabling it, otherwise the drive link maygo down and the device will not be able to communicate.--setAPMLevel [1 - 254] (SATA Only)Use this option to set the APM level of a device.Valid values are between 1 and 254.1 = Minimum power consumption with standby mode2-127 = Intermediate power management with standbymode128 = Minimum power consumption without standby mode129-253 = Intermediate power management withoutstandby mode254 = Maximum Performance.--showAPMLevel (SATA Only)Use this option to show the current APM level of a device
仅限 SAS 的参数
--idle [ enable | disable | default | timerValueMilliseconds ](SAS Only)Use this setting to change the idle power mode settings.NOTE: This is the legacy idle timer before EPC drives.If this is used on an EPC drive, this will modifythe idle_a power state and timer values.enable - enable the power statedisable - disable the power statedefault - restore default settings for this power statetimerValue - number of milliseconds to set for the timerused in this power state. If a timer is providedthe state will also be enabled, if not already.Spec timers are set in 100 millisecond increments.Timers will be truncated to fit 100 millisecond increments.This is only available on SAS/SCSI drives as ATA drives did nothave a separate configurable idle timer.WARNING: EPC Settings may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--sasPhy [phy number] (SAS Only)Use this option to specify a specific phy to usewith another option that uses a phy identifier value.Some tool options will assume all SAS Phys when thisoption is not present. Others will produce an error whena specific phy is needed for an operation.Use the -i option to learn more about the supported phys.--sasPhyPartial [info | enable | disable] (SAS Only)Use this option to enable or disable the partial phy powercondition. This is from the enhanced phy control mode page.Use the --sasPhy option to specify an inpidual phy,otherwise this will be changed on all phys.WARNING: Configuring this setting may cause the drive to beundetectable by other hardware if this power condition is notsupported by a controller or expander.WARNING: Changing SAS Phy partial may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--sasPhySlumber [info | enable | disable] (SAS Only)Use this option to enable or disable the slumber phy powercondition. This is from the enhanced phy control mode page.Use the --sasPhy option to specify an inpidual phy,otherwise this will be changed on all phys.WARNING: Configuring this setting may cause the drive to beundetectable by other hardware if this power condition is notsupported by a controller or expander.WARNING: Changing SAS Phy slumber may affect all LUNs/namespaces for deviceswith multiple logical units or namespaces.--setPowerConsumption [default | highest | intermediate | lowest | watt value](SAS Only) (Seagate Only)This option will set the power consumption rate ofthe device to the value input.Options:-default - sets the device back to default settings-highest - sets the active level to "highest"-intermediate - sets the active level to "intermediate"-lowest - sets the active level to "lowest"-watt value - sets the device to a nearest watt valueless than or equal to the value entered.Power consumption watt values are listed with the--showPowerConsumption command line option.--showPowerConsumption(SAS Only)This option will show the power consumptionrates supported by the device and the current powerconsumption rate of the device. Use a supported watt valuewith the --setPowerConsumption option to set thepower consumption to that value.
仅限 NVMe 的参数
--transitionPowerState [new power state](NVMe Only)Use this option to transition to a specific power state.HINT:Use --deviceInfo to show number of supported states
个人优化过程
查看硬盘
在进行操作前，需要先 scan 一下，获得目前的硬盘及其 Handle：
> SeaChest_PowerControl_x64_windows.exe --scanVendor Handle Model Number Serial Number FwRevSATA PD0 ST16000NM001G-2KK103 ZL2G57KM SN02SATA PD1 ST16000NM001G-2KK103 ZL2FMG93 SN02SATA PD2 J.ZAO 3 SERIES 2.5 INCH 240GB SATA SSD MFM307T000750 V4.15.0NVMe PD3 SAMSUNG MZVL21T0HCLR-00B00 S676NF0T505944 GXA7601Q
例如此处笔者有4个硬盘，之后我们会以 PD0 这个硬盘为例进行调整。
调整 APM
APM 又称 Advanced Power Management。大多数时候，APM 能起到自动管理电源的能力，因此如果你没有特殊需求的话，实际上不需要太管这个选项。
但是这又得提一下C1门事件，所谓 C1 门就是在各大硬盘信息查看软件中能看到的 SMART 信息的 C1 项，也叫 Load/Unload Cycle Count，记录着硬盘磁头的归位次数。通常而言每个硬盘的这个商家质保上限是 600K 次，对于正常使用的硬盘而言是足够了。但是在硬盘出现诡异状况时，或者是设置不当时，由于磁头频繁归位，不仅降低了硬盘的性能，也减少了磁头的寿命，因此两头不讨好。
在 SeaChest_PowerControl 中，我们可以使用 --disableAPM 参数关闭 APM 功能，或者使用 --setAPMLevel 参数调整 APM 的等级，并用 --showAPMLevel 查看硬盘的 APM 等级。
更改硬盘 EPC 策略
在希捷的一些大硬盘中，通常使用了 Seagate PowerChoice 功能（中文文档），启用了 EPC(Extended Power Conditions)。EPC 功能简单来说，就是能使硬盘在不同状况下，切换工作模式，以减小功耗。
目前大多数希捷硬盘所支持的 EPC 选项如下：
EPC Mode描述
| Idle_A | 禁用多数伺服系统，减少处理器和通道功耗；磁盘全速 (7200RPM) 转动 |
| Idle_B | 禁用多数伺服系统，减少处理器和通道功耗；磁头卸载到硬盘斜坡；磁盘全速 (7200RPM) 转动 |
| Idle_C/Standby_Y（仅 SAS） | 禁用多数伺服系统，减少处理器和通道功耗；磁头卸载到硬盘斜坡；硬盘速度降至较低 RPM（降低的 RPM） |
| Standby_Z | 磁头卸载到硬盘斜坡；硬盘马达停转；硬盘仍可对非磁碟访问主机命令作出响应。 |
通常来说，希捷的硬盘初始只会启用 Idle_A 和 Idle_B 阶段，但是对于一些长时间无访问的硬盘，例如备份硬盘和负载较低的场景等，则最好启用 Idle_C 和 Standby_Z 的模式。
在开始调优前，先查看硬盘的 EPC 状况：
> SeaChest_PowerControl_x64_windows.exe -d PD0 --showEPCSettings===EPC Settings===* = timer is enabledC column = ChangeableS column = SavableAll times are in 100 millisecondsName Current Timer Default Timer Saved Timer Recovery Time C SIdle A *1 *1 *1 1 Y YIdle B *1200 *1200 *1200 4 Y YIdle C 0 6000 0 20 Y YStandby Z 0 9000 0 110 Y Y
可见，初始时候只有 Idle_A 和 Idle_B 是启用的，注意到命令中的时间是以 100ms（0.1s）为单位的，结合 Seagate PowerChoice 的文档，可知对我的硬盘，各个 EPC 模式的在硬盘无读写后的进入时间为：
- Idle A：瞬时
- Idle B：2 分钟
- Idle C：未开启，默认为 10 分钟
- Standby Z：未开启，默认为 15 分钟
为降低功耗，同时考虑到我可能有一部分定时任务，我选择将 Idle B 阶段设为 15 分钟，Idle C 阶段设为半小时，Standby Z 阶段设为一小时，命令如下：
SeaChest_PowerControl_x64_windows.exe -d PD0 --idle_b 900000SeaChest_PowerControl_x64_windows.exe -d PD0 --idle_c 1800000SeaChest_PowerControl_x64_windows.exe -d PD0 --standby_z 3600000
然后再查看一下当前设置，看是否成功：
> SeaChest_PowerControl_x64_windows.exe -d PD0 --showEPCSettings===EPC Settings===* = timer is enabledC column = ChangeableS column = SavableAll times are in 100 millisecondsName Current Timer Default Timer Saved Timer Recovery Time C SIdle A *1 *1 *1 1 Y YIdle B *9000 *1200 *9000 4 Y YIdle C *18000 6000 *18000 20 Y YStandby Z *36000 9000 *36000 110 Y Y
大功告成！这样子在硬盘限制的时候，功率就会大大减小咯！
如果想查看当前硬盘的状况，可以使用下面的命令：
> SeaChest_PowerControl_x64_windows.exe -d PD0 --checkPowerModeDevice is in the PM1: Idle state and the device is in the Idle_a power condition
可见此时硬盘位于 Idle A 模式。
PowerBalance 模式改善随机读写
希捷的一些高级产品中可能会支持 PowerBalance 模式，据其官方所说，此模式能提高硬盘的随机读写能力，并且减少随机读写时的功耗。但是据网友反应，这个模式下虽然随机读写能力提升，但是顺序读写能力将大幅下降，因此不建议开启。
有需要的读者可以通过 --powerBalanceFeature 选项开启。
总结
这篇文章简要的介绍了 SeaChest Utilities 中的 PowerControl 功能，通过此功能能减少硬盘的功耗，增加硬盘的寿命。
本文是笔者在捣腾家用 NAS 服务器后的总结文章，如果您觉得此文章对你有用，还请你点个赞留个评论，之后我将更新一期使用 SSD 固态硬盘来为 HDD 机械硬盘做读写缓存层的文章，以弥补 HDD 随机读写能力不足的缺陷，还请各位关注！
微信便捷交流