QUOTE(Andrewtst @ Nov 19 2020, 11:04 PM)
xxboxx, Hi since you ask me about storage in another thread and I notice you are pro on NAS.
Need your favor to build for me
how much I need to spend if I go for NAS with following requirement.
Minimum of
100 TB capacity as currently my external HDD storage already is 50 TB and currently only left less than 1 TB free.
I used it for storing video files only for the moment.
I want to know the total cost if I build up a NAS that is 100 TB to justified whether it worth to do NAS or not.
This 50 TB External HDD currently I spend around RM 6,500.00
No need Plex transcoding, this is 100% I not required. Plex transcoding reduce the quality. I playback the video in actual quality and no transcoding is required.
Maybe backup as Snapshot only, no full backup as if full backup my capacity probably will need to double up in this case.
No need raid for high speed as well, this is optional as I don't think I use it and required.
Appreciate much if you could separate the NAS cost and HDD cost.

Wow 50TB of external storage
You have a lot terabytes of data that is not important and can be replaced if damage/missing, and some important data that irreplaceable? If so then I suggest use 2 HDD for redundancy/RAID for the important data while the rest is just a bunch of disk, no redundancy or backup. This way it doesn't cost so much for those not important data.
As for the NAS itself, you can go pre built like Synology or built yourself. Usually if need until 100TB it would be cost effective to built yourself, but need source each component for NAS use by yourself, learn how to install the OS and setup everything. Need some technical skills. But since most of the data is not in RAID, you can go 6 or 8 bays pre built NAS, 2 bays in RAID-1 for important data, while 4/6 bays each as own volume, this way you can use it as hot swappable, take out currently not need HDD and put in another HDD that you want to access. This way no need to get much more expensive plenty bays NAS while still can have 100TB now and expand in future.
For HDD, price per TB, now 8TB is the most lowest. Toshiba N300 is less than RM900 while Seagate Ironwolf is less than RM1100. Not recommend to get WD now because it might be SMR drive.
Depend on your external storage HDD in it, some if it using normal HDD inside, you can take out the HDD and use on NAS.
For NAS, if you built yourself it might cost around RM2000+ if everything is new. If prebuilt, 6 bay NAS I like DS1621+ hardware, price can get around RM3600.
This comparison show how much more powerful the hardware is. If 8 bays NAS, DS1821+ still not yet selling in Malaysia, DS1819+ (around RM4500) hardware also not bad but random read/write not as fast as DS1621+.
DIY NAS pros is cheaper and can customized everything. Cons is need technical skills and time.
Prebuilt NAS pros is not much technical skills need to setup and maintain, everything is mostly automated. Cons is the hardware is more expensive, cannot upgrade.