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Intel 520 ssd 180gb in Dell 1121 with Ubuntu

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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

Output:
/dev/sda:
Timing cached reads: 4476 MB in 1.99 seconds = 2244.15 MB/sec
Timing 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

Output:
16384+0 records in
16384+0 records out
1073741824 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/sec
root@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 3.0
Standards:
Used: unknown (minor revision code 0x0110)
Supported: 9 8 7 6 5
Likely used: 9
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: 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 Device
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: 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
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
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 TRIM
Security:
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 : bb2824682
Checksum: correct

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