300TB FreeNas

[ajulgasem]

Hi Everyone,

I need to build 300TB NAS Storage for IP Camera system, I have plan to have 36 Disk x 10TB with RAID-Z3 I not sure FreeNAS can support this?
CPU is E5-2640v4, RAM 256GB

Regards,
AJ

 

[SweetAndLow]

Hi Everyone,

I need to build 300TB NAS Storage for IP Camera system, I have plan to have 36 Disk x 10TB with RAID-Z3 I not sure FreeNAS can support this?
CPU is E5-2640v4, RAM 256GB

Regards,
AJ

What do you mean you don't think it can support that? Have you read the manual?

I would probably do 4 vdevs with 8 disks each in raidz2. That would get you 32 disks and around 240TB raw storage.

 

[ajulgasem]

Can I have 4 vdevs with 9 disks 10TB each?

 

[SweetAndLow]

Sure, you want to use raidz3 in that case or raidz2?

240TB vs 280TB

Also keep in mind you will have the bytes to bits conversion and will have a smaller usable storage.

 

[ajulgasem]

Can I use RAID-Z1? In my understand if I choose RAID-Z1 in each vdevs can have 1 disk failed in each vdevs right? Or only RAID-Z2 and RAID-Z3 I can choose.

 

[SweetAndLow]

Can I use RAID-Z1? In my understand if I choose RAID-Z1 in each vdevs can have 1 disk failed in each vdevs right? Or only RAID-Z2 and RAID-Z3 I can choose.

Have you read the documentation. All this is answered in there.

With larger disks you don't usually want raidz1. Odds are you will not survive a disk rebuild

 

[Matt_G]

I would STRONGLY urge you to not use RAIDZ1 with 10TB disks.
As SweetAndLow said, it's doubtful you would survive a resilver of one of the VDev's when a disk fails.
In fact, I would put the odds at 50/50.
And if it didn't survive, you just lost the VDev, which means you just lost the entire pool.

Do yourself a big favor and use RAIDZ2.

Here is a handy calculator to help you get an idea of the usable space you will have with certain layouts:
http://wintelguy.com/zfs-calc.pl

 

[ajulgasem]

Ok I agree with you, thanks for your explain I m clear now.