I got some interesting results from an old SSD I bought as part of an eBay lot a while back. I ran these tests in an old HP DM1Z laptop (AMD E-350 CPU). I used ReadSpeed release 1.
Run #1 shows some lower than expected numbers (compared to a new drive), and inconsistency between regions.
Run #2 is after I ran SpinRite 6.0 at level 2. I see no difference, except at the 75% region, where there is a notable improvement. SpinRite fixed an area that had dropped down to ~100 MB/s (visible in the 75% region of DM1Z-1-1.TXT).
Run #3 is after a secure erase. The numbers look great here.
Run #4 is after using Nwipe (Parted Magic) to write random data to the entire drive (no blanking pass). I'm surprised that this undid the improvement I saw in the 3rd run.
I have attached the log files for each run. -0 is a normal run with no parameters other than the filename, and -1 is a run that includes /1. The -1 runs were performed immediately after the -0 runs. The timestamps are wrong because I had to pull the battery to install the drive.
Run #1 shows some lower than expected numbers (compared to a new drive), and inconsistency between regions.
Run #2 is after I ran SpinRite 6.0 at level 2. I see no difference, except at the 75% region, where there is a notable improvement. SpinRite fixed an area that had dropped down to ~100 MB/s (visible in the 75% region of DM1Z-1-1.TXT).
Run #3 is after a secure erase. The numbers look great here.
Run #4 is after using Nwipe (Parted Magic) to write random data to the entire drive (no blanking pass). I'm surprised that this undid the improvement I saw in the 3rd run.
| Run | 0% | 25% | 50% | 75% | 100% |
|---|---|---|---|---|---|
1 | 484.3 | 460.4 | 481.1 | 439.8 | 482.0 |
2 | 484.0 | 460.9 | 481.1 | 483.2 | 481.8 |
3 | 513.6 | 515.2 | 515.2 | 515.2 | 515.2 |
4 | 468.5 | 480.9 | 480.9 | 480.9 | 417.9 |
I have attached the log files for each run. -0 is a normal run with no parameters other than the filename, and -1 is a run that includes /1. The -1 runs were performed immediately after the -0 runs. The timestamps are wrong because I had to pull the battery to install the drive.
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