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    SNBForums is a community for everyone, no matter what their level of experience.

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    Cell Carriers One Step Closer To "Sharing" Your 5 GHz Bandwidth

    So in other words, gobble up everything that's not already taken, and then charge you to use it! What happens to the poor individuals who can no longer find any available channels in this previously free, public spectrum?
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    Seagate Personal Cloud Retest

    The plot thickens ... It turns out it absolutely does matter which file system you're using. So your dog assessment skills were way off this time. However, I just discovered that the 4TB, non-SMR Backup Plus drives exhibit identical behavior! I hope to know more tomorrow.
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    Seagate Personal Cloud Retest

    Sequential writes when used as DAS were falling to around 30MB/s or even less - and staying there. A good 1GbE NAS should sustain ~80-110MB/s. Random reads/writes are already often much slower than a 1000BT network, so the drive becomes the bottleneck - that's normal. But this was sequential...
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    Seagate Personal Cloud Retest

    Well, I'll have plenty of time to prove you right - or wrong. It's just that I'm not doing my big NTFS transfer just yet. But if the new drives work faster I may be able to do it sooner rather than later ... ;) - when a transfer stretches into day(s) it really holds me up! I did gather from my...
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    Seagate Personal Cloud Retest

    I just got off the phone with Seagate. They confirmed that yes, the issue is very real. It had slipped through their testing. But they also determined this dramatic slowdown only occurs under HFS+ with small/medium files. Apparently this doesn't occur under NTFS, regardless of whether attached...
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    Seagate Personal Cloud Retest

    A rep and a small team of engineers from Seagate contacted me today. They'll try to replicate my results next week. Apparently they used large files (video files, I believe) when they did their large dataset write testing on this drive. I expect to hear back next Wednesday or Thursday. I don't...
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    Seagate Personal Cloud Retest

    I look forward to seeing the results. As I suggested, it may take a copy of over 100GB (preferably over 150GB) to the Personal Cloud drive for the dramatic slowdown to show up. But I believe my use-case is common (transferring many photos to NAS or DAS), so it's certainly relevant! Also, is the...
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    Seagate Personal Cloud Retest

    These are methods of writing data to hard disk platters. Perpendicular Magnetic Recording was the previous "new" (now standard) method of increasing platter density. Its growing pain was initial reliability problems. Shingled Magnetic Recording is the latest method. Its growing pain is reduced...
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    Seagate Personal Cloud Retest

    OK, but I'm saying the design of the Seagate 5TB SMR drive makes it much slower than competing drives (or even Seagate's own 4TB PMR drives). It's dramatically slower in many cases - so much so that the drive's performance can be a bigger factor than anything going on with the NAS itself (which...
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    Seagate Personal Cloud Retest

    I hope you don't mean this to refute my findings. While this may be true in general - and I've certainly seen it in action - this isn't the case here. There's a difference in either this drive or the external case - and I'll bet it's the drive. As I mentioned, the exact same dataset (comprised...
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    Seagate Personal Cloud Retest

    No, that's just it. It's being run on a fast USB 3.0 UASP connection, and the bottleneck still occurs. Other brand hard drives or RAID arrays (DAS) I'm copying from are not slowing down - they copy from/to each other quickly. These tests happen to be on Mac Minis using HFS+, but other drives or...
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    Seagate Personal Cloud Retest

    I believe Seagate is being deceptive here, and crossing their fingers that no one will notice. The firmware may have little to do with the performance differences. The big factor is in the drives - in particular, the 5TB drives are SMR, rather than the much faster PMR technology used in the 4TB...
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