[kwlug-disc] Cyber Monday ...

[CrankyOldBugger]

The thing about "marketing-speak", is that if you don't do it right, then
someone from Marketing might come down and explain it to you.  Then you
just lost a whole day of productivity...


On Mon, Nov 28, 2022 at 1:06 PM Ron Singh <ronsingh149 at gmail.com> wrote:

> Yeah, I hear you, it's just that a lot of the white papers extolling the
> diff between surveillance drives and NAS drives come across as just so much
> marketing-speak.
>
> There is likely some tuning of the firmware to favour sequential vs random
> read/write, but seriously, even if one has a bank of 16 cams, recording
> 720P/24fps in B/W, there will be 16 streams of seq writes at a relatively
> low data rate. Is 16 seq streams akin to a 16x random data stream to the
> firmware? I don't know, but it feels like it.
>
> What I do know is that we have a number of clients using NAS boxes with
> NAS drives, and they are connected to NVRs with anywhere between 4 and 28
> cams(some even in colour). Running for years, no issues of drive death or
> data path saturation.
> The NAS drives are in a RAID5 config usually, so there is RAID controller
> buffering going on to muddy things too.
>
> I guess I just don't see how the "optimized for seq read/write" thing on
> surveillance drives will work with the multiple-streaming reality of having
> a bunch of cams streaming video to a drive, unless there is a TON of RAM on
> said drive to buffer the many webcam streams before doing a seq write of
> each stream/aggregated stream?
>
> FWIW.
>
> Ron S.
>
>
>
> On Mon, Nov 28, 2022 at 7:21 AM CrankyOldBugger <crankyoldbugger at gmail.com>
> wrote:
>
>> Can confirm what Jason said: that IronWolf drive is for NAS boxes.
>>
>> On Mon, Nov 28, 2022 at 12:10 AM Jason <jasonpa at gmail.com> wrote:
>>
>>> Here's a good deal on the WD Purple Pro - has a higher RPM, workload
>>> rating, and warranty, and basically the same price:
>>>
>>> https://www.memoryexpress.com/Products/MX00117407
>>>
>>> On Mon, Nov 28, 2022, 12:02 a.m. Jason <jasonpa at gmail.com> wrote:
>>>
>>>> Isn't that a NAS type drive?  Not sure if that's what would work best
>>>> with constant writes.
>>>>
>>>> I'd recommend the Western Digital Purple drives.  These are made
>>>> specifically for a surveillance use case:
>>>>
>>>>
>>>> https://www.canadacomputers.com/product_info.php?cPath=15_4232&item_id=189578
>>>>
>>>> On Sun, Nov 27, 2022, 4:38 p.m. Ron Singh <ronsingh149 at gmail.com>
>>>> wrote:
>>>>
>>>>> Not sure if the single unit showing as being in stock(Waterloo) is
>>>>> real or Memorex, but perhaps this --
>>>>>
>>>>>
>>>>> https://www.canadacomputers.com/product_info.php?cPath=15_4232&item_id=162381
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Ron S.
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Nov 27, 2022 at 4:22 PM Khalid Baheyeldin <kb at 2bits.com>
>>>>> wrote:
>>>>>
>>>>>> I am in the market for a surveillance grade 3.5" hard disk that is
>>>>>> 6TB or greater ...
>>>>>>
>>>>>> This will go into a network video recorder (NVR) and will be written
>>>>>> to 24x7 ...
>>>>>>
>>>>>> Any recommendations?
>>>>>>
>>>>>> --
>>>>>> Khalid M. Baheyeldin
>>>>>>
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