Recent content by Maxx

  1. M

    The IO operation at logical block address "x" was retried. Cheap HP SSD errors in Event Viewer and poor performance.

    I would definitely consider it. Usually as soon as I see spare blocks being tapped, I retire the drive - but I can't tell for sure here. The flash on this drive can survive several times that many writes but it's variable depending on write amplification (NAND writes vs. host writes), how many...
  2. M

    The IO operation at logical block address "x" was retried. Cheap HP SSD errors in Event Viewer and poor performance.

    I wish I could tell what values AD and B0 actually are, however my thought is that at least one of them is tracking spare blocks (which usually starts at 100 and works backwards). Once a drive starts dipping into spare blocks it's usually the end of the line. The original S700/S700 Pro series...
  3. M

    dressing up nvme drives

    https://www.ekwb.com/shop/ek-m-2-nvme-heatsink-green?___SID=U
  4. M

    Are there any "mainstream" 4TB+ NVMe drives in the pipeline?

    Phison was showing off reference designs for 8TB NVMe drives at CES2020. We saw a ton of lines that will go up to 4TB including ADATA's Indigo, Pearl, and Sage drives, Mushkin's EON and EON Pro (latter up to 16TB), which means at least 5 controllers right there: Phison E12/E16, Phison E18, SMI...
  5. M

    Are there any "mainstream" 4TB+ NVMe drives in the pipeline?

    Many differences. Usually no SLC caching, they'll have power-loss protection (PLP), firmware options like over-provisioning and security features, optimizations for mixed workloads and steady state, more over-provisioning, different form factors, etc.
  6. M

    Are there any "mainstream" 4TB+ NVMe drives in the pipeline?

    Yep, can use the Hyper with a board that has PCIe bifurcation, there's adapters also with their own controllers (Gigabyte sells one that goes over x8), you can run multiple single adapters too. Of course the exact speeds are dependent on the motherboard/chipset. You can form a RAID/stripe a...
  7. M

    Are there any "mainstream" 4TB+ NVMe drives in the pipeline?

    Sequentially, yes. NVMe as a protocol is just miles beyond AHCI, although I understand people generally not being able to leverage it. Then again with the upcoming consoles, DirectStorage, etc., plus with NVMe/PCIe drives overtaking SATA last year, I think we have a bright future there.
  8. M

    Are there any "mainstream" 4TB+ NVMe drives in the pipeline?

    Storage Spaces is flexible. It in fact has tiers for NVMe SSD -> SATA SSD -> SATA HDD, for example. Can take some PowerShell setup with consumer Windows 10, though. I also use DrivePool with a NVMe acting as cache.
  9. M

    Upgrading soon: looking for a reason to get M2 PCIe 4.0 NVMe...

    The SLC cache design and TLC used on the Gen4 drives mean they'll be slower than the 970 EVO Plus in many workloads, not to mention Samsung's controller is more powerful. The Gen4 drives are the fastest for sequentials for obvious reasons but, yes, if you're looking at overall performance and...
  10. M

    2 different versions of wd blue 3D 2.5" ssd drives. One is significantly slower. Beware.

    I've seen the original model number come with the firmware revision you have on the Best Buy drive, and it performs normally. Firmware revision is tied to controller + flash. It is possible for two drives with the same firmware version to be optimized differently, however. For example I have an...
  11. M

    SSD life dropping fast

    The reported health % is very rarely accurate. Usually you can tell when a drive is dying when the spare block count goes down - typically it starts at 64 in hex, which is 100 in decimal, although that doesn't always mean 100 spare blocks. Once the drive starts using spare blocks it's at the...
  12. M

    SSD life dropping fast

    CDI is reporting it wrong. The 1TB 860 EVO is rated for 600TB TBW and you have 19.89TB of writes, which should be reported at 96% health. Which it actually is under the wear leveling count.
  13. M

    SSD life dropping fast

    The 512GB 960 Pro has a TBW of 400TB so 98% might simply mean between 8-12TB of writes. CDI is reading the health of your 850 Pro incorrectly - your wear-leveling count is 165 = 357 P/E and the 850 Pro is rated at 6000 P/E which comes out to ~6% worn, which is why the value of that count is...
  14. M

    SSD life dropping fast

    You can tell how worn it is by the erase block count raw value, 48A = 1162 P/E. This determines the reported health value (which is why its value is "62") with a target of 3000 P/E. This implies you're already well beyond the TBW (I believe it was 72TB on that model - you're already at least...
  15. M

    SSD life dropping fast

    Some drives will vary the health information based on the TBW regardless of actual health. I believe this is an OEM drive (XG6) which has no official TBW, however their retail drive (RC500) is rated for 200TB. (200)(1 - .94) = 12TB of writes, or the range would be 10-14TB (5%-7% wear) in which...
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