I use a huge amount of writes on one nvme drive, and in 1 year, it has only dropped 1%. So in simple term, it just means you have a huge amount of life yet. This just means drive has a much longer write resilience than the vendors quote (to avoid warranty claims as I said).
In fact, even if you get to zero, count can go as high as -256%. The counters only work to nearest percent, so it goes 99, 98, 97, every time an additional 10 terabytes are written. So (numbers here are fictitious to show principle) if drive was quoted to have a maximum number of writes of 1000 Terabytes, 98% means you still have 980 terabytes to go in effect. It just means you have written (nominally) 2% of its lifetime of data.Įvery SSD has a "vendor quoted" maximum number of writes (in practice, this is quite conservatively low to avoid warranty claims). It does not mean drive has lost 2% of its capacity. Would that change have triggered it?It took me a while to understand what this means. Everything looks good but health status had changed from 99% to 98%. I've had Crystal Disk for some time and today was the first time it's played the alert sound. Simply click on the title for a free copy.Silly question maybe but thought I'd ask. Advanced load benchmarking can be configured, as well as full drive information and data erasing via secure erase, enhanced secure erase, TRIM and overwriting. TxBench is one of our newly discovered benchmarks that we works much the same as Crystal DiskMark, but with several other features. The AJA Video Systems Disk Test is relatively new to our testing and tests the transfer speed of video files with different resolutions and Codec. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and use in our benchmark testing. The benchmark displays test results for, not only throughput but also, IOPS and Disk Access Times. For the most part, AS SSD tests can be considered the ‘worst case scenario’ in obtaining data transfer speeds and many enthusiasts like AS SSD for their needs.Īnvil’s Storage Utilities (ASU) are the most complete test bed available for the solid state drive today. The toughest benchmark available for solid state drives is AS SSD as it relies solely on incompressible data samples when testing performance. Performance is virtually identical, regardless of data sample so we have included only that using random data samples.Ĭrystal DiskMark results are decent and speeds are better than listed specs but the one result we really like is that low 4K read speed of 83MB/s. Crystal Disk Benchmark is used to measure read and write performance through sampling of random data which is, for the most part, incompressible.
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