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Old 08-30-2009, 07:25 PM   #1
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Registered: Nov 2004
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SATA HD performance

Here is what I had before:

hdparm /dev/hda

 multcount    = 16 (on)
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  0 (off)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    = 256 (on)
 geometry     = 38913/255/63, sectors = 625142448, start = 0
hdparm -Tt /dev/hda

 Timing cached reads:   27404 MB in  2.00 seconds = 13724.52 MB/sec
 Timing buffered disk reads:   14 MB in  3.38 seconds =   4.14 MB/sec
After some googling, I changed /boot/grub/menu.lst and added the noprobe options:
kernel /vmlinuz-2.6.18-128.7.1.el5 ro root=LABEL=/ hda=noprobe hdc=noprobe

Now I have:

 IO_support   =  0 (default 16-bit)
 readonly     =  0 (off)
 readahead    = 256 (on)
 geometry     = 38913/255/63, sectors = 625142448, start = 0
 Timing cached reads:   26016 MB in  2.00 seconds = 13027.68 MB/sec
 Timing buffered disk reads:  344 MB in  3.01 seconds = 114.40 MB/sec
hdparm -i /dev/sda


 Model=ST3320613AS                             , FwRev=CC2H    , SerialNo=            9SZ3J014
 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:120,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
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: unknown:  ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

 * signifies the current active mode
hdparm -I /dev/sda


ATA device, with non-removable media
        Model Number:       ST3320613AS
        Serial Number:      9SZ3J014
        Firmware Revision:  CC2H
Transport: Serial
        Supported: 8 7 6 5
        Likely used: 8
        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:  625142448
        device size with M = 1024*1024:      305245 MBytes
        device size with M = 1000*1000:      320072 MBytes (320 GB)
        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
        Recommended acoustic management value: 208, current value: 208
        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=120ns  IORDY flow control=120ns
        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
                SET_MAX security extension
           *    Automatic Acoustic Management feature set
           *    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
                Write-Read-Verify feature set
           *    WRITE_UNCORRECTABLE command
           *    {READ,WRITE}_DMA_EXT_GPL commands
           *    Segmented DOWNLOAD_MICROCODE
           *    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
        Master password revision code = 65534
        not     enabled
        not     locked
        not     expired: security count
                supported: enhanced erase
Checksum: correct
The improvement was noticeable.

My question is: can this be improved even further? Or is this what I should expect of a 320GB SATA drive?
Old 08-30-2009, 07:36 PM   #2
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Registered: Jan 2006
Posts: 4,363

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You will need to check the specs on that particular make and model of drive, but I suspect that you are pretty much at the max. The sata to pata translation (converting sda to hda) was probably what was slowing you down so much before.


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