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日: 2014年12月18日

PCのディスクをSSDにしてみました~

image

先日買っちゃったSSD、ようやく乗せ替えました。
そして、さっそくベンチマーク。
おおー速い!!

(しまった、HDDの速度はかってなかった。まあいいか)

接続が3Gb/sなのでシーケンシャルの速度は頭打ちですが、
ランダムアクセスが想定していた程度に速くなったので満足ですw

仕様では読み書き75000IOPSという話だったので、ちょっと遅いのかな?

———————————————————————–
CrystalDiskMark 3.0.3 Shizuku Edition x64 (C) 2007-2013 hiyohiyo
                           Crystal Dew World :
http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

           Sequential Read :   274.748 MB/s
          Sequential Write :   262.505 MB/s
         Random Read 512KB :   224.062 MB/s
        Random Write 512KB :   210.306 MB/s
    Random Read 4KB (QD=1) :    24.975 MB/s [  6097.5 IOPS]
   Random Write 4KB (QD=1) :    52.189 MB/s [ 12741.5 IOPS]
   Random Read 4KB (QD=32) :   167.068 MB/s [ 40788.1 IOPS]
  Random Write 4KB (QD=32) :    65.936 MB/s [ 16097.7 IOPS]

  Test : 1000 MB [C: 75.2% (179.3/238.4 GB)] (x3)
  Date : 2014/12/18 21:10:23
    OS : Windows 7 Professional SP1 [6.1 Build 7601] (x64)

smartctlの出力:
$ smartctl -a /dev/sda
smartctl 6.3 2014-07-26 r3976 [i686-pc-cygwin-win7(64)-sp1] (cygwin-6.3-1)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     TS256GSSD370
Serial Number:    **********
Firmware Version: N0815B
User Capacity:    256,060,514,304 bytes [256 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Thu Dec 18 21:14:10 2014 JST
SMART support is: Available – device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x02) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x71) SMART execute Offline immediate.
                                        No Auto Offline data collection support.
                                        Suspend Offline collection upon new
                                        command.
                                        No Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0002) Does not save SMART data before
                                        entering power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   2) minutes.
Extended self-test routine
recommended polling time:        (  10) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x0000   100   100   000    Old_age   Offline      -       0
  5 Reallocated_Sector_Ct   0x0000   100   100   000    Old_age   Offline      -       0
  9 Power_On_Hours          0x0000   100   100   000    Old_age   Offline      -       2
12 Power_Cycle_Count       0x0000   100   100   000    Old_age   Offline      -       11
160 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       0
161 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       43
163 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       3
164 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       796
165 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       4
166 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       0
167 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       0
168 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       3000
169 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       100
177 Wear_Leveling_Count     0x0000   100   100   050    Old_age   Offline      -       0
181 Program_Fail_Cnt_Total  0x0000   100   100   000    Old_age   Offline      -       0
182 Erase_Fail_Count_Total  0x0000   100   100   000    Old_age   Offline      -       0
192 Power-Off_Retract_Count 0x0000   100   100   000    Old_age   Offline      -       5
194 Temperature_Celsius     0x0000   100   100   000    Old_age   Offline      -       25
195 Hardware_ECC_Recovered  0x0000   100   100   000    Old_age   Offline      -       3819
196 Reallocated_Event_Count 0x0000   100   100   016    Old_age   Offline      -       0
197 Current_Pending_Sector  0x0000   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0000   100   100   050    Old_age   Offline      -       0
232 Available_Reservd_Space 0x0000   100   100   000    Old_age   Offline      -       100
241 Total_LBAs_Written      0x0000   100   100   000    Old_age   Offline      -       5925
242 Total_LBAs_Read         0x0000   100   100   000    Old_age   Offline      -       1094
245 Unknown_Attribute       0x0000   100   100   000    Old_age   Offline      -       6368

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%         1         –

SMART Selective self-test log data structure revision number 1
SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

この「Available_Reserved_Space」を見ておけば、事前に寿命が分かるはず。(たぶん)
常時起動させてるPCなので、どうなるか楽しみです。