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ovidiu's avatar
ovidiu
Aspirant
Mar 04, 2019
Solved

RN316 4 HDD (4TB each) in RAID 10 with 2 SSD in RAID 1 for Tiering? Good Idea

RN316 4 HDD (4TB each) in RAID 10 with 2 SSD in RAID 1 for Tiering?

Good Idea ? This Is after my 3 byear old 316 had to be RMA-ed.

Usage will be daily (I plan to use cron to start it when my kid comes home)

Short cartoons and cartoon shows, but majority 1080p (hence stroiooing for speed, and mirroring for some safety (short recovery time).

Am I OK with just one SSD for tiering (What happens if the SSD dies, will the data on HDD still be available? And use 6th slot for hot spare for the Hdd's Raid 10?

THats's why I wanted to do 2 concatenaded volumes.

Volume 1 = 2+2 HDD of 4TB each for my kid movies 

Volume 2 = 1+1 SSD of 256 GB each - just for tiering, not data.

Pls advise and comment. Thank You !!!

 


  • Hopchen wrote:

    I take my NAS as a storage device only. It provides data to my devices and is an integral part of backing up and data safe-keeping. But that is it.

    That's also been my approach for a couple of years now.  I've deployed a Windows desktop PC as an application server, and that is where I run plex and other applications.  I agree it's more scalable.

     

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  • StephenB's avatar
    StephenB
    Guru - Experienced User

    ovidiu wrote:

    RN316 4 HDD (4TB each) in RAID 10 with 2 SSD in RAID 1 for Tiering?

    Good Idea ? This Is after my 3 byear old 316 had to be RMA-ed.

    Usage will be daily (I plan to use cron to start it when my kid comes home)

    Short cartoons and cartoon shows, but majority 1080p (hence stroiooing for speed, and mirroring for some safety (short recovery time).

     


    It's not a bad idea, but it is overkill for your application.  Streaming requires good large-file (sequential) transfer speeds, it doesn't require fast random access. 

     

    Normal XRAID should be more than enough for 1080p streaming for home users.  A single 1080p stream requires at most 8 MB/sec (full BlueRay), and most 1080p rips are in the 1-2 MB/sec range.  XRAID/RAID-5 can deliver about 100 MB/s large file speeds on a gigabit network. 

     

    Were you having streaming issues before?  Are you streaming with Plex?  If not, what are you using?

     


    ovidiu wrote:

     

    Am I OK with just one SSD for tiering (What happens if the SSD dies, will the data on HDD still be available? And use 6th slot for hot spare for the Hdd's Raid 10?


    Tiering isn't caching - my understanding is that the folder and file descriptors (e.g. the metadata) are only saved in the SSD RAID group.  So you should assume that the full file system will be lost when the SSD fails.  

     

    If you have a backup plan in place (as you should of course), then you could risk using one SSD.  But normally you should have two.  

     

    Also, since the two SSDs are mirrored, they will both reach their write limit at about the same time.   At some point you probably will want to stagger them (for instance, replacing one SSD about half way through it's useful life). 

     


    ovidiu wrote:

    (I plan to use cron to start it when my kid comes home)

    Just use the power schedule built into the web ui.

  • My media player is a PS3. I like the included Blue-Ray player, it's not used for games.

    I did not use Plex, because I like the file browsing in and out of folders, and not sure Plex can do that (respect my folder hierarchy).

    I will stager the SSD's willi-nilly, one was used in my lapyop before, one is new, good thing you reminded me.I have problems with stutering, but from what you describe it looks more it's a PS3 decoding lack of oomph.

    Which brings me to the next logical question. Apparently I shall I use another media renderer,

    Sony is not powerful enough, and has an extremely limited file type of playing.

    Can you recommend a versatile one that can decode easily 1080p even in mkv formats and play flac files?

    the ne PS4 or Xbox One X can do that ??? - i don't care about games. Thanks.

     

     

     

    • StephenB's avatar
      StephenB
      Guru - Experienced User

      ovidiu wrote:

      I have problems with stutering, but from what you describe it looks more it's a PS3 decoding lack of oomph.

       


      It could be network related.  Are you streaming over wifi?

       

      Stuttering can also be caused by bitstream errors in the files, or by files that aren't compliant with the BluRay H.264 profile.  So if the stuttering happens with specific files, you might see if you can play them from a USB disk connected to the PS3.

       


      ovidiu wrote:

       

      Can you recommend a versatile one that can decode easily 1080p even in mkv formats and play flac files?

      the ne PS4 or Xbox One X can do that ??? - i don't care about games. Thanks.

       


      My own media players are old and no longer on the market, so I don't have good advice to offer there.  Most new ones don't support direct access to network shares.  Plex will stream mkv and flac (though flac might need to be transcoded for some players). 

       

      There is a folder view that can be set on the server side.  You can certainly try that on a PC (using the web interface), and see if it presents in a way that works for you.

      • ovidiu's avatar
        ovidiu
        Aspirant

        I am using a 1GB cable , not wireless.

         

        I did instal Plex (only app) and I am streaming 720p or1080p. due to ca

        It's the RN316 processor that is underpowered and combined with PS3 limitations (every new update removes a feature - they started with removing Linux, then MKV then FLAC)

        I installed the Plex on the PS3 side, but it's still stuttering.

        The RN 316 (the new unit I received in warranty) has a raid 10 HDD (2x2 4TB Seagates) and a Higher Tier for caching (2x256GB Samsung). But the processor is the bottleneck.

         

        Based on my previous experience (in 12 years I changed 4 netgear 6 bay units due to various catastropihic events with data loss, and the fact that the ultragious pricing for a decent processor for a 6 bay unit, I am in a picle with Netgear.

        The (paid) customer support is good, but I preffer the no need for customer support and just working units.

        Like my other 2 Nas-es, made by Synology. One is 9 years old and the other 7. Never a failure (they descently drop the HDD after trelling me for some time I have reached a threshold failure, OS is vastly superior and you can have one with a decent processor at an affordable price.

         

        Coupled with my neigbour showing how easy he can get admin access to my Netgear R800 X6 router, I think that it's time to re-think my approach., the original one I bought was defective from the get go on the capacitive buttons but I did not knew how they behave, it look like a big blue light)

        PS I can't even register my  RN316 (though new replacemwnt , it's already registered), and can not transfer my recently paid customer support. Unless I beg probably the hard to find customer support phone and re-re-explain my story , thogh I have an over 200 CAD $ phone support (paid this jan) , there is no phone listed. My options are to ask comunity or look at the useless My Gear intricate pages.

        Alll I can see is the initial case nr 41006975, but the history is obfuscated .

         

        Stephane, you mentioned old media player, and yes, network cable is paramount.

        Do you mind mentioning which one? The Xboxe One S is apparenly not bad in my quest to find a more versatile one than Sony PS3 (though PS3 has a very clean, intuitive and responsive UI)

         

         

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