Hard Drive Speed

Todd Simi tsimi at speakeasy.net
Wed Oct 31 16:20:32 UTC 2007


Hi,

I know this may be a silly question since it probably a hardware limitation,
but I'm running F7 and would like to know what I can do to increase the hard
drive seek time, if anything.

I have a pretty new SATA drive at 3GB/sec and it seems to have to seek longer
than I'd expect.

It's running with DMA4, AHCI, etc.

The rest is an ASUS MB with a Core 2 Duo 6400 @ 2.4 Mhz & 2GB Ram @ 800Mhz.

Are there any setting from the standard that by help?

here's the hdparm output

[root at localhost ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8608 MB in  2.00 seconds = 4313.28 MB/sec
 Timing buffered disk reads:  202 MB in  3.02 seconds =  66.79 MB/sec
[root at localhost ~]# hdparm -tTacdiIMpQ /dev/sda

/dev/sda:
 IO_support   =  0 (default 16-bit)
 readahead    = 256 (on)

 Model=ST3250620NS                             , FwRev=3.AEG   , SerialNo=            9QE2230L
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?16?
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  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 ATA/ATAPI-7

 * signifies the current active mode


ATA device, with non-removable media
        Model Number:       ST3250620NS                             
        Serial Number:      9QE2230L
        Firmware Revision:  3.AEG   
Standards:
        Supported: 7 6 5 4 
        Likely used: 7
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:  488397168
        device size with M = 1024*1024:      238475 MBytes
        device size with M = 1000*1000:      250059 MBytes (250 GB)
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: unknown setting (0xfefe)
        Recommended acoustic management value: 254, current value: 0
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4 
             Cycle time: no flow control=240ns  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
           *    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
                64-bit World wide name
                unknown 84[11]
                unknown 84[12]
           *    SATA-I signaling speed (1.5Gb/s)
           *    SATA-II signaling speed (3.0Gb/s)
           *    Native Command Queueing (NCQ)
           *    Phy event counters
                Device-initiated interface power management
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT LBA Segment Access (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
                frozen
        not     expired: security count
        not     supported: enhanced erase
Checksum: correct
 HDIO_GET_ACOUSTIC failed: Inappropriate ioctl for device
 Timing cached reads:   4502 MB in  2.00 seconds = 2252.78 MB/sec
 Timing buffered disk reads:   38 MB in  3.08 seconds =  12.35 MB/sec



Thanks

Todd
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