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how configure Readynas 524X for best video surveillance performance

mangebest
Tutor

how configure Readynas 524X for best video surveillance performance

Hello

I have a readynas 524X with four 4TB disks. 

I use the readynas surveillance app that i still think is good.

I want to ask the community if anyone can tell me how i should configure my readynas

for best speed performance when reading/writing video.

I am not using the NAS for any backup and the video does not have to be backed up ether.
I am thinking about for example RAID setup, xraid vs flexraid whatever that is, 
any tip is very apprechiated. I have 8 hikvision cameras around the house. 

best regards 

Magnus

Sweden

Model: RN524X|ReadyNAS 524X – Premium Performance Data Storage - 4-Bay
Message 1 of 28

Accepted Solutions
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:

its WD40EFAX  4 TB times 4disks.

 


If you are looking for the best performance, the drives are the foundation. Unfortunately the WD40EFAX isn't the best choice for a surveillance application - the WD40EFAX is an SMR drive.  So its sustained write performance is quite poor (and very variable).  

 

The WD40EFZX (WD Red Plus) is much better for this - it uses CMR technology. 

 

An Enterprise class drive like the WD4003FFBX (Red Pro) has a faster RPM - which doesn't improve sustained write speed that much over the EFZX, but would improve random access times (which might help when browsing through files for playback).  Enterprise drives do cost more, but they also generally come with 5 year warranties.

 

 

View solution in original post

Message 9 of 28

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FURRYe38
Guru

Re: how configure Readynas 524X for best video surveillance performance

Netgear has set up a community forum specifically for the ReadyNAS products. Most of the people who watch that forum are more likely to have experience with ReadyNAS (RN Series) products. Might be more likely to find someone who has a solution if the question is posted there:
https://community.netgear.com/t5/New-ReadyNAS-Users-General/bd-p/readynas-general


Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear


Thank you.

Message 2 of 28
Sandshark
Sensei

Re: how configure Readynas 524X for best video surveillance performance

XRAID vs. FlexRAID has nothing at all to do with speed.  XRAID is a set of algorithms that control standard Linux mdadm and BTRFS for creation and expansion of volumes while FlexRAID puts the control more in the users' hands but still keeps you from having to go "under the hood" to the Linux command line level.  There are pluses and minuses regarding each, and there are some RAID configurations that can only be created in each, so determining what you want for speed and resistance to drive failure is what needs to be considered first.

 

If by "backup", you mean RAID, that's not what RAID is.  RAID is more about being able to contrune using the NAS after a drive failure than providing a backup, since there are volume faults that can render the volume inaccessible that RAID redundancy doesn't help with.

 

The fastest RAID would be RAID0, but a fauilt of a single drive renders the entire volume inaccessible, so it's usually a really bad choice.

 

Before anybody can give you any really useful suggestions, you need to be more specific about how much data your cameras are creating and how fast, your retention needs, what amount of space has to be reserved for other uses, and if you are willing to change out any drives.

Message 3 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@Sandshark wrote:

 

Before anybody can give you any really useful suggestions, you need to be more specific about how much data your cameras are creating and how fast, your retention needs, what amount of space has to be reserved for other uses, and if you are willing to change out any drives.


Also how your network is set up.  If you are using gigabit ethernet, then in most use cases the NAS is limited by the network speed, and not the RAID choice.  So no point in changing around the RAID if that is your situation.

 

I'd also like to understand if you are seeing any performance problems now.

Message 4 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

Hello 

 

I am going "all in"

I have gigabit network all cabled, I am not looking for any other backup ie movies documents and such. none of that.
I have 9 cameras all hikvision. one 4k, 5-6 HD and some 720p. I have set the cameras to push my phone only when a line is 

crossed and otherwhise record always.

If a disk is rendered useless i understand whith RAID0 everything breaks down and i have to start again. Buy a new disk maby more..

But if this buys me speed in recording and playing video then i am all for it. 

Today i am experience some problems i think. The NAS is very slow to load the HTTP page when i log in. ie 30 seconds.

and video playback is not "smooth" but choppy.

Every setup point you can think of, not only RAID config, is very wellcome. What would you do to give my NAS more warp

very best 

Magnus 

Sweden 

Message 5 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

I got this when trying NAS performance testerNAS.JPG

Message 6 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:

I got this when trying NAS performance testerNAS.JPG


Your NAStester speeds say that you are limited by your gigabit network speed, and not your RAID configuration.  That is to say, changing your RAID won't increase these speeds much if at all.

 

Did you run this test with the cameras active?  Or were they turned off?

What disks are you using (manufacturer and model - including size)?

 


@mangebest wrote:

Today i am experience some problems i think. The NAS is very slow to load the HTTP page when i log in. ie 30 seconds.

and video playback is not "smooth" but choppy.


It might be useful to temporarily turn off some cameras, and then see if the NAS login speed and/or video playback improves.

 

Message 7 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

its WD40EFAX  4 TB times 4disks.

cameras on,  Tomorrow i will turn them off and try again.

good night

Magnus

Message 8 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:

its WD40EFAX  4 TB times 4disks.

 


If you are looking for the best performance, the drives are the foundation. Unfortunately the WD40EFAX isn't the best choice for a surveillance application - the WD40EFAX is an SMR drive.  So its sustained write performance is quite poor (and very variable).  

 

The WD40EFZX (WD Red Plus) is much better for this - it uses CMR technology. 

 

An Enterprise class drive like the WD4003FFBX (Red Pro) has a faster RPM - which doesn't improve sustained write speed that much over the EFZX, but would improve random access times (which might help when browsing through files for playback).  Enterprise drives do cost more, but they also generally come with 5 year warranties.

 

 

Message 9 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

thank you 

Good to know!

I have turned off half of the cameras and- yes the NAS was faster to respond.

The surveillance program tells me that when all the cameras are on the bitrate is 66000 Kbps.

 

In your opinion should i go for new disks or 10gb network to my client?

 

And, since i don´t understand all the config on the NAS is there any "obvious" settings that i mabey

have turned on that shouldnt be on in regards to speed.

best regards

Magnus

Message 10 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

..should i maybe go for SSD?...

Message 11 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:

 

The surveillance program tells me that when all the cameras are on the bitrate is 66000 Kbps.

In your opinion should i go for new disks or 10gb network to my client?

 


66 megabits per second?  Or 66 megabytes per second?  Both can be handled comfortably by a gigabit infrastructure, but it still would be useful to know (see below).

 

I am thinking now that the main problem is the SMR drives.  They depend heavily on caching, and when the caching isn't enough the write speeds get really really slow.  If your cameras are always recording, the caching definitely won't be enough.Playing with RAID modes (or settings) probably won't overcome this.

 

So I'd go for new disks over a 10 gb network upgrade. 

 


@mangebest wrote:

..should i maybe go for SSD?...


They would of course be much faster, and much more expensive for 4x4TB.  Performance with SSDs would be limited by the network, no matter what RAID mode you used.  You do need to pay some attention to the write limits.

 

Four 4 TB Samsung 870 drives would cost you about $1700 (current US amazon price), and each drive is spec'd at 2400 TB worth of writes over its lifetime. Assuming 66 Mbps from the cameras, you'd be writing about 1 TB per day (counting RAID-5 overhead), spread evenly across all four drives. So about 250 GB per drive per day. Over the 5 year warranty, that works out to ~460 TB/drive (and it would take over 20 years to reach the write limit spec).

 

But 66 MBps would be 8x the load - about 7.6 TB/day total, or roughly 2 TB per drive per day. In that case the drives need to be replaced about every 3 years.  That is why I asked about the units above.

 

The write limits do vary, so you'd need to get this info for the specific SSDs you purchase.  (BTW, the Samsung 2400 TB spec is only for the 4 TB 870.  The spec is lower for smaller SSDs). 

 

Message 12 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

Thank you very much for helping me whith my problem!

 

I think disks too. I have read up on your explanation and it sound the way to go.

I really dont need the 4 disks i can get by with only two i think. two 4tb red pro.

 

it is most surely 66 megabits i think.

 

One last question and i would be very happy. 
How do i backup the surveillance app. last time (when i cnaged the NAS i lost the function of the surveillance serial numbers. Am i right in thinking that since i dont change NAS the serials will work?

best regards 

Magnus

Message 13 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

Skärmavbild 2022-02-28 kl. 17.00.22.jpg

Message 14 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

Skärmavbild 2022-02-28 kl. 17.00.22.jpg

Message 15 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:


How do i backup the surveillance app. last time (when i cnaged the NAS i lost the function of the surveillance serial numbers. Am i right in thinking that since i dont change NAS the serials will work?

 


That is a puzzle.  ReadyNAS Surveillance was discontinued in 2017 (meaning they stopped selling it then).  Not sure if you can get any Netgear help on this or not.

 

Apps are generally installed onto the data volume, so if you destroy your existing volume you would need to reinstall the app (and I think you'd need to re-apply the serial number activation process).  

 

So the safest course might be to purchase 4x4 Red Pro drives, and upgrade them all w/o destroying the volume.  It is possible to back up the apps folder (with some effort), but I don't know if that would be enough here - there might also be some license info installed in the OS partition.

 

@Marc_V or @JeraldM (mods) will hopefully chime in.

Message 16 of 28
Sandshark
Sensei

Re: how configure Readynas 524X for best video surveillance performance

If you use all new drives in your NAS (or factory default with the same ones), you will have an issue with the ReadyNAS Surveillance serial number(s), likely because the Linux UUID changes.  I believe Netgear support can still help you with them, but I think you really should start considering alternatives.

Message 17 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

OK 

thanks for all help.

I have some thinking ahead of me. Maybe i just leave it as is. Would like to try the pro disks though

best regards

Magnus

Message 18 of 28
Sandshark
Sensei

Re: how configure Readynas 524X for best video surveillance performance

To use the new drives, just replace them one at a time and all the configuration (including UUID) will be retained.  It's a lot slower, as each new drive has to re-sync before you swap the next.  The only concern may be the green drives tying things up such that the surveillance has issues getting access during the re-sync.  The CPU of your NAS has enough horsepower that it shouldn't be a factor.

Message 19 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

that would be wonderful, but will it work when i have RAID 0 ?

Can i just replace two disks and let the two other bays be empty?

Message 20 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:

that would be wonderful, but will it work when i have RAID 0 ?

Can i just replace two disks and let the two other bays be empty?


You can't change to RAID-0 unless you destroy your current volume.  And that will create the problem with ReadyNAS Surveillance.

 

Also, you can't shrink an XRAID array from the NAS admin UI - so you won't be able to reduce the number of disks in your existing volume.

 

Maybe wait for the Netgear Mods to speak to your concerns on ReadyNAS Surveillance.

Message 21 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

I think i got my RAID confused- seems i have RAID 5 and that would mean i can change disks one at a time?Raid.jpg

Message 22 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

Raid.jpg

Message 23 of 28
StephenB
Guru

Re: how configure Readynas 524X for best video surveillance performance


@mangebest wrote:

I think i got my RAID confused- seems i have RAID 5 and that would mean i can change disks one at a time?


You are in XRAID mode, so the NAS is managing your RAID.  You currently are using RAID-5, so you can change one disk at a time.

 

Message 24 of 28
mangebest
Tutor

Re: how configure Readynas 524X for best video surveillance performance

could i bother you for your opinion on the WDpurple surveillance disk compared to WDplus 

in my all surveillance system

 

Message 25 of 28
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