Intel 520 ssd 180gb in Dell 1121 with Ubuntu

I have my intel 520 ssd 180GB a year ago and installed in Dell 11z-1121 laptop. Speed much faster computer to the original mechanical hard drive came with the laptop. I have done lots of ssd tweaks for xubuntu 12.04 installed on my Dell Inspiron 11z-1121 laptop. I didn’t really do any benchmark until now. For anyone who wonder what is the speed for intel 520 ssd 180GB with ubuntu, i ran some test. Please note ssd speed depends on the motherboard chipset plus sata interface. intel 520 ssd series can support upto sata III, but dell 1121 only support sata II, so i can’t get the full speed from intel 520 ssd.

Speed test with hdparm (get/set ATA/SATA drive parameters under Linux)
# hdparm -Tt /dev/sda

/dev/sda:Timing cached reads: 4476 MB in 1.99 seconds = 2244.15 MB/secTiming buffered disk reads: 714 MB in 3.00 seconds = 237.77 MB/sec

Disk I/O test
# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync

16384+0 records in16384+0 records out1073741824 bytes (1.1 GB) copied, 4.69718 s, 229 MB/s

Using hdparm to get info about Intel SSD 520 Series 180GB. There are some SMART disk info about my intel 520 ssd from this post about how to check ssd life left on ubuntu
/dev/sda: Timing cached reads:   4008 MB in  2.00 seconds = 2008.40 MB/sec Timing buffered disk reads: 708 MB in  3.00 seconds = 235.95 MB/secroot@dell1121:~# hdparm -I /dev/sda/dev/sda:ATA device, with non-removable media    Model Number:       INTEL SSDSC2CW180A3                       Serial Number:      CVCV204408A6180EGN      Firmware Revision:  400i        Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0Standards:    Used: unknown (minor revision code 0x0110)     Supported: 9 8 7 6 5     Likely used: 9Configuration:    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:  351651888    Logical  Sector size:                   512 bytes    Physical Sector size:                   512 bytes    Logical Sector-0 offset:                  0 bytes    device size with M = 1024*1024:      171705 MBytes    device size with M = 1000*1000:      180045 MBytes (180 GB)    cache/buffer size  = unknown    Nominal Media Rotation Rate: Solid State DeviceCapabilities:    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: 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=120nsCommands/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            Power-Up In Standby feature set       *    SET_FEATURES required to spinup after power up       *    48-bit Address 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)       *    Native Command Queueing (NCQ)       *    Host-initiated interface power management       *    Phy event counters       *    unknown 76[14]       *    DMA Setup Auto-Activate optimization            Device-initiated interface power management       *    Software settings preservation       *    SMART Command Transport (SCT) feature set       *    SCT Data Tables (AC5)       *    Data Set Management TRIM supported (limit 1 block)       *    Deterministic read data after TRIMSecurity:     Master password revision code = 65534        supported    not    enabled    not    locked    not    frozen    not    expired: security count        supported: enhanced erase    4min for SECURITY ERASE UNIT. 2min for ENHANCED SECURITY ERASE UNIT.Logical Unit WWN Device Identifier: 5001517bb2824682    NAA        : 5    IEEE OUI    : 001517    Unique ID    : bb2824682Checksum: correct

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