5年半使ったIntel DC S3500 240GBの状態とベンチマーク

ファイルサーバで使ってたInte SSD DC S3500 240GB (SSDSC2BB240G4)がお役御免となった。購入記録を採ってるわけじゃないけど、たぶんこの時のSSD⇒Intel SSDSC2BB240G4 (DC S3500 240GB) のベンチマーク。のちに同じSSDを中古購入し、2台でRAID組んでWindows Serverのシステム領域兼記憶域階層のSSD層として使っていた。先に買った方、つまり当時のベンチマークがある方の使用時間は5年半ほどになる。

経年でどの程度パフォーマンスが変わったのか比較してみた。

5年半前
S.M.A.R.T.
CrystalDiskMark 6
-----------------------------------------------------------------------
CrystalDiskMark 6.0.2 x64 (C) 2007-2018 hiyohiyo
                          Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :   504.027 MB/s
  Sequential Write (Q= 32,T= 1) :   290.264 MB/s
  Random Read 4KiB (Q=  8,T= 8) :   312.603 MB/s [  76319.1 IOPS]
 Random Write 4KiB (Q=  8,T= 8) :   263.048 MB/s [  64220.7 IOPS]
  Random Read 4KiB (Q= 32,T= 1) :   311.353 MB/s [  76013.9 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :   253.603 MB/s [  61914.8 IOPS]
  Random Read 4KiB (Q=  1,T= 1) :    21.859 MB/s [   5336.7 IOPS]
 Random Write 4KiB (Q=  1,T= 1) :    66.980 MB/s [  16352.5 IOPS]

  Test : 4096 MiB [I: 0.0% (0.1/223.6 GiB)] (x3)  [Interval=5 sec]
  Date : 2023/10/11 0:36:19
    OS : Windows 10 Professional [10.0 Build 19045] (x64)
    Intel DC S3500 240GB SSDSC2BB240G4 (2)
-----------------------------------------------------------------------
CrystalDiskMark 6.0.0 x64 (C) 2007-2017 hiyohiyo
                          Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :   509.971 MB/s
  Sequential Write (Q= 32,T= 1) :   285.330 MB/s
  Random Read 4KiB (Q=  8,T= 8) :   312.081 MB/s [  76191.7 IOPS]
 Random Write 4KiB (Q=  8,T= 8) :   271.718 MB/s [  66337.4 IOPS]
  Random Read 4KiB (Q= 32,T= 1) :   271.167 MB/s [  66202.9 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :   252.995 MB/s [  61766.4 IOPS]
  Random Read 4KiB (Q=  1,T= 1) :    33.345 MB/s [   8140.9 IOPS]
 Random Write 4KiB (Q=  1,T= 1) :    94.851 MB/s [  23157.0 IOPS]

  Test : 4096 MiB [D: 0.1% (0.1/223.4 GiB)] (x3)  [Interval=5 sec]
  Date : 2018/03/01 1:41:52
    OS : Windows 10 Professional [10.0 Build 16299] (x64)
    Intel SSDSC2BB240G4
CrystalDiskMark 8 なし
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):   498.060 MB/s [    475.0 IOPS] < 16791.21 us>
  SEQ    1MiB (Q=  1, T= 1):   404.748 MB/s [    386.0 IOPS] <  2588.56 us>
  RND    4KiB (Q= 32, T= 1):   312.375 MB/s [  76263.4 IOPS] <   418.26 us>
  RND    4KiB (Q=  1, T= 1):    26.909 MB/s [   6569.6 IOPS] <   151.62 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   287.891 MB/s [    274.6 IOPS] < 28986.44 us>
  SEQ    1MiB (Q=  1, T= 1):   288.068 MB/s [    274.7 IOPS] <  3631.40 us>
  RND    4KiB (Q= 32, T= 1):   265.559 MB/s [  64833.7 IOPS] <   492.03 us>
  RND    4KiB (Q=  1, T= 1):    75.663 MB/s [  18472.4 IOPS] <    53.74 us>

Profile: Default
   Test: 2 GiB (x3) [I: 0% (0/224GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2023/10/11 0:36:08
     OS: Windows 10 Professional [10.0 Build 19045] (x64)
Comment: Intel DC S3500 240GB (SSDSC2BB240G4) (2)

ランダムリード・ライトが若干遅くなっているように見えなくもないが、4KiB 32QT1は速くなって良くわからん。240GBのSSDに対して93TB書き込んでるけど、問題になるような性能低下はなさそう。損耗率から計算すると残り280TBほど書き込めるようだ。

かたわれのSSDは結構深刻な状態で、ランダムライト速度が半分以下になってしまっている。

------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):   496.475 MB/s [    473.5 IOPS] < 16845.23 us>
  SEQ    1MiB (Q=  1, T= 1):   399.525 MB/s [    381.0 IOPS] <  2621.80 us>
  RND    4KiB (Q= 32, T= 1):   312.067 MB/s [  76188.2 IOPS] <   418.81 us>
  RND    4KiB (Q=  1, T= 1):    30.675 MB/s [   7489.0 IOPS] <   133.11 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   285.882 MB/s [    272.6 IOPS] < 29174.83 us>
  SEQ    1MiB (Q=  1, T= 1):   285.205 MB/s [    272.0 IOPS] <  3673.12 us>
  RND    4KiB (Q= 32, T= 1):    92.268 MB/s [  22526.4 IOPS] <  1419.45 us>
  RND    4KiB (Q=  1, T= 1):    43.706 MB/s [  10670.4 IOPS] <    93.19 us>

Profile: Default
   Test: 2 GiB (x3) [D: 0% (0/224GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2023/10/10 22:06:50
     OS: Windows 10 Professional [10.0 Build 19045] (x64)
Comment: Intel DC S3500 240GB (SSDSC2BB240G4)

セキュアイレースしても目立った改善は見られなかった。

Secure Erase前

Secure Erase後

S.M.A.R.T.はメディア消耗指標は問題なさそうだが、電源断保護失敗で異常が検出されており、そのためか電源投入回数が跳ね上がっている。

電源断保護失敗でパフォーマンス低下ってのも良くわからんけど、内蔵の電源回路が不調→コントローラリセット→すぐ回復→辛うじて書き込みは継続、って感じなのかなー?

若干の不安はありつつも、別サーバでZFSのRAID-1構成で引き続き頑張ってもらう予定。

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