continuum

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continuum last won the day on June 16 2018

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About continuum

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  1. So they sell Lexar 2 years ago and now come back as Micron? I don't get it?
  2. continuum

    Compatible RAID cards Dell Precision 490

    That's a PCI-e v1.1 chipset, most higher-end SAS RAID cards are x8, so 2000MB/sec max... depending on the drives you plan to use, this is a case where you might actually end up PCI-e slot bandwidth limited? As far as what works, in theory PCI-e is all backwards compatible, so I'd say buy whatever's modern and give it a shot. Buy from a place with a good return policy if you're concerned.
  3. Your video benchmarks would be much, much more useful with CODEC and bitrate? Emphasis mine. Given that this is a system review, I was surprised you didn't include any benchmarks to back up the gaming or audio claims made-- no gaming benchmarks/comparisons to other systems, no even basic audio benchmarks/measurements of things like DPC latency? And video encoding wasn't tested, only decoding? Also for an office system, noise, while not critical, might deserve some observations, especially under heavy load doing the gaming or video and audio mentioned? I realize this is StorageReview and not MotherboardReview.
  4. Derp, apologies, I see you guys actually wrote it out "terabytes written" in the text. I was looking for it in the spec chart as well as for "TBW" and missed it. Controller type-- fair point, but non-storage focused, more mainstream hardware sites like Anandtech, Tom's Hardware, and Techpowerup all still include it, so I was curious why a specifically-storage-focused generally hasn't been mentioning it. (and geeks like me care... )
  5. continuum

    Computex 2019 Roundup Discussion

    Any idea which controller ADATA and PNY's new NVMe PCI-e 4.0 SSDs are using? IIRC Phison is the only one with a controller that's announced, SMI said Q2 2020... I'm curious what else is out/coming up?
  6. That's a pretty solid endurance, about 1 DPWD (drive write per day) vs. the 0.3 to 0.5 DWPD typically seen on consumer SSDs... any idea how much overprovisioning they're doing? TechpowerUp says it's 512GB on the 480GB model so that's nothing out of the ordinary, I assume they're using higher-grade 3D NAND than their desktop consumer line-up? Definitely not enough drives with this!
  7. Not sure this is feasible, but could we ask if you could color-code, shade, or pattern your bar graphs? Especially the first chart, which has something like 30+ SSD's in it... it's hard to find the drive being reviewed. Also I noticed SR often has no mention of endurance or controller type-- I assume that's something you guys don't consider important?
  8. Yar, as noted... the cost per TB reflects that it's the highest-end, premium drive at the moment. Cost per TB, at least when I checked today at Newegg, is much more reasonable-- and quite similar-- for the 12TB and 14TB...
  9. The former yes... the latter, hopefully not, at least given typical user web browsing and a system with enough memory. Unless in this case "typical use" does more than Facebook, Powerpoint, and Youtube... *grins*
  10. continuum

    AT computer

    That's circa 1996 or so, you may hit the 33.8GB limit in your system's BIOS and hence the drive might not work (best case if your BIOS has the 33.8GB limit is you can't see the full capacity of the drive). https://www.tldp.org/HOWTO/Large-Disk-HOWTO-4.html So you may be SOL.
  11. continuum

    Toshiba L200

    Correct. Although keep in mind even a single write large enough may cause you to see the performance hit.
  12. continuum

    Looking for 32G pcie gen3 x4 M.2 (2242)

    Cheapest unit I see on Newegg is a MyDigitalSSD 120GB SBXe (MDNVME42-SBXe-0128), but it's PCI-e x2 only, bigger than you specified, and DRAM-less. If your PCI-e x4 and 32GB requirements are firm then as Brian said, you might not have much in the way of options.
  13. Disk arrays come in multiple possible configurations. You would need to determine how many disks you will be using in the array and the configuration you are using. Some configurations have zero tolerance for any failures and hence are actually less (potentially significantly so) reliable than a single disk, others can handle a single disk failure, others two disk failures, others ... well let's just say it depends where in the array the second (or third, or fourth, etc.) disk fails. You would need to look up the formulas for each array configuration you are looking at. I did break this all down (or at least find the links) about five years ago, but unfortunately the sources I use escape me at the moment. The calculator linked in the link you posted above is useful enough to have some utility if you want a purely mathematical calculation for the two specific array configurations it covers. It's actually explained in the link you have, but as you can see, disk array availability is rather complicated. Calculating annualized failure rate (for a single disk) or mean time to failure is more simple and is sufficient for most. If you are still intent on calculating array availability then you may want to ask why you are doing so, and understanding the mechanisms that affect it. aka find some links that explain things with better examples than the glossary in the page you linked?
  14. The link you have refers to disk arrays, which in general definition are always composed of multiple disks (hence the name, disk array) whereas you appear to be referring to a single disk. With a single disk there's no availability calculation to be done beyond MTBF. A more useful metric for you to worry about might be AFR, annualized failure rate, for your particular model of disk. Check the specs for that to get what should hopefully be an accurate spec (or speculation) on the odds of your single disk failing over the course of a year. Then you can start looking up formulas that calculate failure rates out to five years. And if it helps any, availability is most certainly not 1 all the time, although that may be the desired goal!
  15. continuum

    What was the best in 1999?

    Late 1999 sounds about right, Seagate's service manual PDF should have a date that matches the drive's actual release or extremely close.