以下是 的输出dmesg | grep SATA：
[ 1.244456] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x11 impl SATA mode
[ 1.256512] ata1: SATA max UDMA/133 abar m2048@0xc0817000 port 0xc0817100 irq 42
[ 1.256525] ata5: SATA max UDMA/133 abar m2048@0xc0817000 port 0xc0817300 irq 42
[ 1.576370] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1.904299] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
从第一行，我了解到我有 SATA III 6 Gb/s *6 个端口。如果我错了，请纠正我。假设我是对的，我不明白为什么我的第二块硬盘，它使用iConnect 盒速度为 3 Gb/s。我 100% 确定硬盘是 SATA 3。有什么方法可以恢复它的速度吗？嗯，可能是硬盘盒的问题，但我该如何确定呢？没有提供任何信息产品页面。
以下是 HDD 的 hdparm 输出：
ATA device, with non-removable media
Model Number: TOSHIBA MQ01ABF050
Serial Number: X3UZC5SFT
Firmware Revision: AM0G3H
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6
Standards:
Supported: 8 7 6 5
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 976773168
Logical Sector size: 512 bytes
Physical Sector size: 4096 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 476940 MBytes
device size with M = 1000*1000: 500107 MBytes (500 GB)
cache/buffer size = 8192 KBytes
Form Factor: 2.5 inch
Nominal Media Rotation Rate: 5400
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
Advanced power management level: 254
DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
SET_MAX security extension
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* 64-bit World wide name
* IDLE_IMMEDIATE with UNLOAD
* WRITE_UNCORRECTABLE_EXT command
* {READ,WRITE}_DMA_EXT_GPL commands
* Segmented DOWNLOAD_MICROCODE
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Gen3 signaling speed (6.0Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
* Phy event counters
* Idle-Unload when NCQ is active
* DMA Setup Auto-Activate optimization
Device-initiated interface power management
* Software settings preservation
* SMART Command Transport (SCT) feature set
* SCT Write Same (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
supported: enhanced erase
110min for SECURITY ERASE UNIT. 110min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 50000395144086c6
NAA : 5
IEEE OUI : 000039
Unique ID : 5144086c6
Checksum: correct
答案1
传输：串行、ATA8-AST、SATA 1.0a、SATA II 扩展、SATA Rev 2.5、SATA 修订版 2.6
SATA Rev 2.6= SATA II。
阅读您发布的链接：
[...] SATA 接口 适用于 SATA 2.5
因此很可能它会强制将硬盘视为 SATA II。
为了快速验证这一点，请拔下电源插头，将硬盘直接插入主板上的 SATA 端口，然后hdparm -I [...]再次运行。
答案2
在许多芯片组上，只有一小部分（通常是六个中的两个或四个）SATA 端口支持 6Gbps 模式。我怀疑您有这样的芯片组，制造商选择为光驱托架使用 3Gbps 端口。