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我的硬盘有8M缓存,可是hdparam 显示没有BuffType=unknow ,BuffSize=0kB
如何设置呢?谢谢,
hdparam -tT 测试结果
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/dev/hda:
Timing cached reads: 592 MB in 2.00 seconds = 295.60 MB/sec
Timing buffered disk reads: 66 MB in 3.06 seconds = 21.60 MB/sec
hdparam -iI显示结果
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$hdparam -iI /dev/hda
/dev/hda:
Model=TOSHIBA MK4025GAS, FwRev=KA100A, SerialNo=83121823S
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=48
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78140160
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1 ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6
* signifies the current active mode
ATA device, with non-removable media
Model Number: TOSHIBA MK4025GAS
Serial Number: 83121823S
Firmware Revision: KA100A
Standards:
Supported: 6 5 4
Likely used: 6
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
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CHS current addressable sectors: 16514064
LBA user addressable sectors: 78140160
device size with M = 1024*1024: 38154 MBytes
device size with M = 1000*1000: 40007 MBytes (40 GB)
Capabilities:
LBA, IORDY(can be disabled)
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = ?
Advanced power management level: unknown setting (0x0080)
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_VERIFY command
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* Advanced Power Management feature set
SET_MAX security extension
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* SMART error logging
* SMART self-test
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
36min for SECURITY ERASE UNIT.
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
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