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Re: Looking for a NAS
Originally posted by Uranium-235 View PostI don't transcode. But I did want server grade stuff for a while years ago but it's grown pointless.
However a Synology NAS DOES transcode, and i'm looking forward to that
E.g., my audio collection exists in three different "encodings" for the three different types of uses I make of it (MP3 for PMPs, FLAC for my audio server and the original "rips" from the CDs).
I'm always leary of relying on functionality embodied in some CLOSED appliance. Codecs/containers evolve, over time, yet there's no guarantee that the appliance's software/firmware will even attempt to keep up with those changes.
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Re: Looking for a NAS
Originally posted by Dannyx View PostWhich one is that ?
price is the only issue but they've gone down since being discontinued.Cap Datasheet Depot: http://www.paullinebarger.net/DS/
^If you have datasheets not listed PM me
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Re: Looking for a NAS
Originally posted by Uranium-235 View PostRed is 5400 RPM
REs (not to be confused ! ) are 7200 RPM but 64mb cache....soooooo....yeaaaah.....which ones do we choose ? What do we look out for in NAS-grade HDDs ?
EDIT: scratch the first part - what I saw is the WD Red PRO which are indeed 7200 RPM...Last edited by Dannyx; 06-23-2019, 01:32 PM.Wattevah...
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Re: Looking for a NAS
Originally posted by Dannyx View PostDo SSDs play well with NASs or are there some SSDs specially designed for this ? Sorry if I already asked this - I forgot if I did
NAS drives are more resilient to vibration and heat when they are densely packed. Not something SSDs worry about.
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Re: Looking for a NAS
Originally posted by diif View PostThere are enterprise SSDs, but even a standard desktop SSD from a reputable manufacturer would suit most situations.
NAS drives are more resilient to vibration and heat when they are densely packed. Not something SSDs worry about.<--- Badcaps.net Founder
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Re: Looking for a NAS
Originally posted by Topcat View PostI just have a hard time trusting critical data to a SSD for some reason. I keep good backups of mine....but unless you dump it with every change (which for me would be daily), there's far greater risk for data loss. I usually do a full dump once a month and depend on the RAID (probably more than I should) in the mean time.
SSDs for the OS (RAID), spinning stuff for the data.
Originally posted by Dannyx View PostSame...would not use them in a NAS myself, hence why I asked if it's common practice in the data center industry...probably not.
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Re: Looking for a NAS
Another idea was to have BOTH a SSD box for quick access to "everyday" files and a HDD box for a more permanent storage of important data. I imagine there exist boxes with 4+ drives that have this setup in mind and provide automation ("syncing"), though I could probably rig up something myself from scratch, say: use my existing WD box for two SSD(s) and a PC for 1/2 HARD disks. I imagine it would be better to have a Windows machine hosting the "final" version of the data, since if the machine fails, I have a usable filesystem on the disk ready to go on another PC with absolutely no complicated recovery scheme required. This might be a non-issue however, since I think it's highly unlikely for the NAS box ITSELF to fail (which would leave me with drives stuck in an unusable filesystem, hence the idea) - I imagine the disks inside it are more likely to give up before the box starts hiccuping in any way.Wattevah...
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Re: Looking for a NAS
Originally posted by diif View PostYou've also mentioned more than once you don't like patching your OS.
Originally posted by diif View PostSSDs for the OS (RAID), spinning stuff for the data.<--- Badcaps.net Founder
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Re: Looking for a NAS
Originally posted by Dannyx View PostAnother idea was to have BOTH a SSD box for quick access to "everyday" files and a HDD box for a more permanent storage of important data.
This might be a non-issue however, since I think it's highly unlikely for the NAS box ITSELF to fail (which would leave me with drives stuck in an unusable filesystem, hence the idea) - I imagine the disks inside it are more likely to give up before the box starts hiccuping in any way.
[I had a NAS years ago that stored configuration information on the spindle so the network connection went down when the disk failed to spin up!]
Part of my reason for moving to bog-standard hardware (and FOSS software) is to ensure there's nothing preventing me from accessing/recovering data regardless of the failure.
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Re: Looking for a NAS
Originally posted by Curious.George View PostYou're assuming that the storage medium is the limiting factor in your latency and/or bandwidth.
Originally posted by Curious.George View Postlose a power supply (they're usually not just stock "PC" power supplies)
Originally posted by Curious.George View Postencounter a software problem (bug or firmware corruption)
Originally posted by Curious.George View PostPart of my reason for moving to bog-standard hardware (and FOSS software) is to ensure there's nothing preventing me from accessing/recovering data regardless of the failure.Wattevah...
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Re: Looking for a NAS
Originally posted by Dannyx View PostI HAVE to wait for the disks to spin up after the box's been in standby. Windows explorer of course has no choice but to hang and wait for this to happen, so this would be one (small?) issue solved by switching over to SSDs
Regardless, it will be considerably more responsive than waiting for rust to spin...
No, in this case it's a very small entry-level NAS, so it's powered by a regular wall wart - no worries there in case it quits, unless of course you're thinking about something failing in the INTERNAL DC-DC power converters of the box,
Precisely why I started looking into the DIY route, even considering a Windows PC, like I said ! Sure, having a PC in there would be big, noisy, kinda clunky and would take up considerably more room, but I'd be putting to good use a motherboard which is just lying around, it would be a fun build and let's not forget: MUCH cheaper than an off the shelf box, PLUS the disks to support it !
[I essentially run this way (though my "PC" runs a custom NetBSD kernel instead of Windows). But, I've been discarding the "external USB enclosures" in favor of a simple USB dock. This lets me store bare drives -- instead of drives that have been packaged in a bunch of plastic (and having to keep track of which wall wart goes with each)]
But, before you commit to ANY approach, do some benchmarks to get a feel for how things will perform under various usage scenarios. You don't want to discover after-the-fact that your solution leaves you feeling cheated...
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Re: Looking for a NAS
Originally posted by Curious.George View PostYou'd opt to not let windows "sleep" (nor hibernate) if latency was an issue.
Originally posted by Curious.George View PostThen you'd have to ensure you had a comparable wall wart/brick available to swap into its place when/if it shits the bed.
Originally posted by Curious.George View PostIf overall performance isn't a driving factor, then consider a passively cooled "PC" with external USB3 disk(s). If the "PC" craps out, you unplug the USB3 cables and plug the disk into another USB3 (or 2!) port on a bog-standard desktop or laptop and your data is ready and waiting.Originally posted by Curious.George View PostIf overall performance isn't a driving factor
Originally posted by Curious.George View PostBut, before you commit to ANY approach, do some benchmarks to get a feel for how things will perform under various usage scenarios.Wattevah...
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Re: Looking for a NAS
Originally posted by Dannyx View PostIsn't USB....slow ? It is, hence why you said this
Granted, I can serve up more than 400MB/s from "internal" drives -- but, that saturates all four Gbe interfaces.
[benchmarking]
What would the best approach for this purpose be ? Is there a "tool" for this sort of stuff, or do I just use regular everyday tasks that I perform with my files as a means to gauge the performance, such as copying files back and forth between a client and the NAS, opening them, overwriting them after editing them and, my favourite, waiting for the thumbnails to generate and reorder by date - this takes A LOT for some reason, even though ironically I CAN open the files just fine in the time it takes for explorer to finally reorder
If you like looking at thumbnail views, then take the time to build ALL of the thumbnails once -- so they are ready and waiting when you go looking into the folder.
[As I said upthread, I use ThumbsPlus for this as it's whole focus is that of making visual selection of images easy. So, it keeps the thumbnails in a database that it maintains.]
In my case, I'm usually pulling entire ISO's or tarballs off of the drives -- 600MB - 50GB. So, I'm more interested in the bandwidth than the latency (it might take me 10 minutes to figure out which drive has the file I want and get it mounted; but, if I can only pull data off it at 20MB/s, I'd be REALLY annoyed!).
If, OTOH, you're looking to click on dozens of photos, one at a time, the "transport cost" may be small and the latency may be the driving annoyance factor.
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Re: Looking for a NAS
Originally posted by Curious.George View PostGranted, I can serve up more than 400MB/s from "internal" drives -- but, that saturates all four Gbe interfaces.
When you say 4 interfaces, are these on the same machine and doing LACP ? (if that's what it was called when you combine more than one to increase throughput). This would require a compatible switch at the other end as well, which I DID look into at one point, but they're hella expensive for my purposes....Wattevah...
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Re: Looking for a NAS
Originally posted by Dannyx View PostI assume this is over "cable",
When you say 4 interfaces, are these on the same machine and doing LACP ? (if that's what it was called when you combine more than one to increase throughput). This would require a compatible switch at the other end as well, which I DID look into at one point, but they're hella expensive for my purposes....
I am evaluating how well this approach will scale to 16 Gbe interfaces (talking to 16 hosts). I need ~60MB/s per link for each of the 16 and this is "cheaper" (because 4xGbe NICs are free) than running 10Gb to a switch and counting on the switch to serve the 16 (1Gbe) hosts at that lower rate.
The downside is I need 4 PCIe slots for the 4xGbe cards...
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Re: Looking for a NAS
Originally posted by Dannyx View PostWhen you say 4 interfaces, are these on the same machine and doing LACP ? (if that's what it was called when you combine more than one to increase throughput). This would require a compatible switch at the other end as well, which I DID look into at one point, but they're hella expensive for my purposes....
Unless you're running a speedy RAID array or SSDs it's pointless as your disc speed is the bottleneck.
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