Do I have enough memory for Raid 0?

[rx590overclocker]

I have 16gb of memory, but i know raid 0 can use a lot.  Is 16 enough to run raid, and still game?

[Sauron]

6 minutes ago, rx590overclocker said:

i know raid 0 can use a lot

That's not true, I'm not sure where you could have read that. You may be confusing raid with ZFS, which does use about 1GB of memory per TB of hard drive.

[ZeusXI]

4 minutes ago, rx590overclocker said:

I have 16gb of memory, but i know raid 0 can use a lot.  Is 16 enough to run raid, and still game?

Raid 0 is just combining to like Drives for increase speed. Are you talking about a RAM disk cache? or ZFS like Sauron said? 

[Electronics Wizardy]

15 minutes ago, Sauron said:

That's not true, I'm not sure where you could have read that. You may be confusing raid with ZFS, which does use about 1GB of memory per TB of hard drive.

the 1gb per tb is complete bs. ZFS uses ram for caching like any other os, nothing special there, and more is better. Dedup can use tons of ram, but thats a seprate thing, normally more than 1gb per tb and depends on record size, not drive size.

[TetraSky]

Perhaps OP has seen Linus's NVME server update videos, saying he basically needed a lot more RAM and CPU cores to have all his drives perform at max speed together in RAID?

If so, don't worry about that. It ain't a scenario you'll encounter as a home user.

[Sauron]

55 minutes ago, Electronics Wizardy said:

the 1gb per tb is complete bs. ZFS uses ram for caching like any other os, nothing special there, and more is better. Dedup can use tons of ram, but thats a seprate thing, normally more than 1gb per tb and depends on record size, not drive size.

I meant you should *account* for about 1gb per tb, not that it uses that much all the time. Probably should have worded that better.

[rx590overclocker]

@Sauron @ZeusXI @Electronics Wizardy @TetraSky

Sorry it took me a while to get back to you.  Here is where i found it.  It is in a read me for the AMD raid driver preinstall.

[Sauron]

On 2/16/2020 at 1:52 AM, rx590overclocker said:

@Sauron @ZeusXI @Electronics Wizardy @TetraSky

Sorry it took me a while to get back to you.  Here is where i found it.  It is in a read me for the AMD raid driver preinstall.

I'm assuming those are the requirements for AMD's software, though even then I suspect they're way exaggerated. Unless AMD is doing something really weird with their RAID functionality it really shouldn't use up any extra RAM once it's set up. I can't find any sources talking about this either, if this were a problem I figure someone would be talking about it.