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davidmorr

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Reply with quote  #1 
For a Toppy, we are told to get video disks, WD Purple iirc. Just looking at Beyonwiz, they seem to be using Seagate Greens, the low energy version of their disks. No mention of video-capable disks.

Does Beyonwiz use a way of saving that does not require the real-time writing capability?
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IanL-S

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Reply with quote  #2 
Never heard of Seagate Greens; do you mean WD. The WD Green disks (no longer available in plattern drives) a problematic in PVRs. I understand from warkus that the use of those drives is a major cause of problems with Beyonwiz. That said, many users have used them without issue. The advantage of AV/surveillance drives is that they are optimised for continuous writing of data. NAS drives have similar optimisation.

All recent Beyonwiz (T2 and U4) use 2.5" HDD. warkus recommends WD Blue drives, but they are expensive particularly the 2TB one (about $180 - but I did pay over $200 for my first WD AV 2TB 3.5" drive many years ago). That said I have used Seagate and Hitachi 2.5" drives in some of my Toppys. However on those systems I have disable buffering of live content.

It come down to, do you want to pay the premium for longer life and reliability.

Ian

PS In early years it was also a matter of power draw - the AV drives placed less stress on Toppy power supply and had lower heat output.
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davidmorr

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Reply with quote  #3 
Quote:
Originally Posted by IanL-S
Never heard of Seagate Greens;
This is what beyonwiz are selling for their machines:

https://beyonwiz.com.au/accessories/internal-hard-drive/

They just look like ordinary low energy drives. Be a bit grim if they are selling disks that are going to fail relatively quickly.


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IanL-S

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Reply with quote  #4 
I have 2 2TB Seagate Barracuda 2.5" HDD in a 7260 and 5300. They have given no problems so far. It was the WD Green HDD which were problematic (if I recall correctly). I think they have been in the Toppys for about a year. (They are backup Toppys so I do not pay close attention to them.)

Edit: Just checked I installed them in early December 2017 - I paid $124 for 2TB version.

Ian
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davidmorr

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Reply with quote  #5 
Quote:
Originally Posted by IanL-S
I have 2 2TB Seagate Barracuda 2.5" HDD in a 7260 and 5300. They have given no problems so far. It was the WD Green HDD which were problematic (if I recall correctly).
It might depend on the optimizations the manufacturers put in them to minimise energy consumption. It always has annoyed me that some disks spin down if not used for more than a few minutes. So then when you do something that accesses the disk, the computer freezes until the disk is ready. :-(

Fortunately, creative people came up with a little background utility that accesses the disk once a minute which stops it spinning down. I guess this will not be necessary with SSDs.

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davidmorr

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Reply with quote  #6 
It appears that surveillance disks only come in 3.5" sizes, so any device that uses 2.5" drives is stuck with ordinary disks. You could try WD Red for NAS 2.5" which has similar design parameters to surveillance disks, ie, designed to be running continuously. The difference is that Purple is optimised for continuous writing while Red is optimised for bursts of writing and reading.
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AQUAR

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Reply with quote  #7 

No need to compromise as 2.5" Surveillance HDD's are available AFAIK.

Toppies that are used like the old VCRs do just fine with desktop HDD's.
By VCR use I mean Only turned on for Recording and Watching. 

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davidmorr

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Reply with quote  #8 
Quote:
Originally Posted by AQUAR
No need to compromise as 2.5" Surveillance HDD's are available AFAIK.
Which brand? I could not find any.

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AQUAR

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Reply with quote  #9 

Example: Western Digital AV-25
Mwave was selling them but seems currently unavailable.
Amazon Australia has a few. 

For various brands, just look for the model numbers associated with these types of HDD's and google on it. 
   

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IanL-S

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Reply with quote  #10 
In my limited experience only small capacity 2.5" AV drives are offered for sale (500gig seems to be the max size). At one stage there was a range of WD 2.5 NAS drive available but now more difficult to find.

Ian
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davidmorr

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Reply with quote  #11 
Quote:
Originally Posted by AQUAR
Example: Western Digital AV-25

Mwave was selling them but seems currently unavailable.
Amazon Australia has a few.

Only one left in Australia, but expensive. Twice the price of WD Blue.

I suspect they are discontinued - anyone that wants portability will be going for an SSD now.

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IanL-S

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Reply with quote  #12 
Unfortunately, as far as I am aware the Toppy firmware does not support SSD - no trim support. Beyonwiz do support SSDs - at one stage they sold T2 with SSD preinstalled.

Ian
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AQUAR

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Reply with quote  #13 

Wouldn't worry to much about the lack of TRIM.

Video files are quite large in comparison to the average PC file, meaning write amplification is not so bad and so the SSD's don't wear as much here as in PC applications.
Without TRIM the throughput will slow down but remain more than ample to keep up with the needs of writing and reading video files.

Also I suspect that SSD's in PVR's get more time in doing background garbage collection (also helps keep it in shape!).

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