continuum

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  1. What exactly are you trying to do? How many Exchange databases do you have? This sounds very much like something you'd need to ask in an Exchange forum, not a storage forum, as it's fundamentally an Exchange implementation question.
  2. SATA or SAS - will it matter?

    You won't see a performance difference in actual use. Pick a type and standardize on it for ease of maintenance later.
  3. I think that's the same line we've been hearing from Seagate every year, only they keep adding a year to it every year...
  4. Is it a engineering thing to make it reliable, or is it a cost thing to make it cheap enough to mass produce? From what little I've read it seems like the former, given the strain on the substrate of 400C+ temps. (I realize it's a somewhat related set of questions!)
  5. MAMR and SMR can be used at the same time, it doesn't eliminate manufacturers from using SMR. It's about $/GB, so this sounds pretty good if it can maintain the current cost per gigabyte advantage of harddisks... I'm curious if this will actually hit, reading the details on some other sites makes this look much more promising for near-term implementation than HAMR, and it may actually kill HAMR entirely, at least in near-term?
  6. From your "UEFI and Legacy" are you trying to boot off of the same partition? Or just access data?
  7. WD My Book Duo 20GB Review Discussion

    The harddisks inside can't saturate USB 3.1 Gen 1 at 5Gbps, so there would be only limited benefit at best to USB 3.1 Gen 2 at 10Gbps. SR's (limited) benchmarks show only ~364MB/sec in RAID0, which is within USB 3.1 Gen 1's transfer speeds-- or are you seeing more limitations than that in your own use? (if so, sources? I'd be curious, since I honestly haven't kept a very close eye on dual-drive external enclosures lately!) I agree, you might see a limitation at peak speeds, but I wonder how much of that matters in typical customer use for these drives, given that sustained performance seems a more likely use case for a majority of the data transferred.
  8. Storage Spaces vs unRAID

    I assume you're using 3.5" to 5.25" bay adapters? IIRC that case, formidable as it is, is only up to 10 (or was it 13?) 3.5" drives from the factory.
  9. Storage Spaces vs unRAID

    What kind of enclosure are you considering? 21 drives is a pretty decent amount, larger than what just about any desktop case will take along with standard (not-storage-oriented) rackmounts, but still a lot smaller than one of Blackblaze's (and similar) storage pods...
  10. Good catch. Didn't notice, although I was wondering when other makers were going to sell us SMR disks...
  11. Drool. Price on 12TB units isn't that bad right now, I imagine that's because 14TB ones were about to drop...
  12. 200TB SAN/NAS for feature film

    I'm not particularly familiar with Storage Spaces, sorry. Maybe someone else can answer? As far as budget RAID/ZFS solutions, well, ZFS and Storage Spaces are all software/OS based so there's zero point to a hardware RAID card in those scenarios.
  13. 200TB SAN/NAS for feature film

    10 cores each is plenty, you can go waaay lower end than that., down to a single Xeon 3104 would be more than overkill. Our NAS builds are all single quad-core setups, I think the oldest is a single Core 2 Quad-era rig if you need perspective. Your workload for the NAS is going to be so low that you're never going to push the CPUs anywhere near rated TDP except maybe when rebuilding the RAID/ZFS pool, and even then I doubt that's going to remotely stress it.
  14. 200TB SAN/NAS for feature film

    Mmm, that's more of a software question than I am familiar with. Most OS'es can support both SMB/CIFS (Windows) as well as NFS (Linux) as well as several other protocols with the right drivers/plugins, so generally it's not a problem with anything reasonably well developed. NAS4free, FreeNAS, Windows Server, whatever... Again nearly entry level CPUs should be just fine, unfortunately I don't have/can't supply benchmark numbers like Kevin does for the hardware I have on hand.