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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 ready...
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.
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.
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.
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