Realistically, how many drives do you need? You can have 30 drives in the main array, and another 24 drives in the cache array.
Funny, their material says 30 drives Max, pool and parity, no more than 30.Realistically, how many drives do you need? You can have 30 drives in the main array, and another 24 drives in the cache array.
Nice, what OS are you runnin, and how much usable storage is that, thats alotta drives for sure.Funny, their material says 30 drives Max, pool and parity, no more than 30.
As for mine, I run 64 currently, have another 16-bay DAS sitting there as well.
Dude! You need to get out more But, in the mean time, yeah, probably not for you.As for mine, I run 64 currently, have another 16-bay DAS sitting there as well.
This sounds awesome! How exactly would you go about doing that? Do you add the unraid VMs with drives to the bare metal Unraid unassigned devices? Or do you just add them to shares? Really interested in this, as I'm looking to switch to unraid soon and don't like the 30 drive array limitation.Dude! You need to get out more But, in the mean time, yeah, probably not for you.
The change in cached drive total count is recent.
Plus...I have to mention.....there's folks out there that run Unraid on bare metal, and then run more Unraid instances in VMs....and have 100+ drives connected at a time. Which just goes to show that where there's a will, there's a freak out there somewhere that will figure out a way.
Note that unraid doesnt officially support it, that said, you actually just run unraid like you normally would just in a VM.This sounds awesome! How exactly would you go about doing that? Do you add the unraid VMs with drives to the bare metal Unraid unassigned devices? Or do you just add them to shares? Really interested in this, as I'm looking to switch to unraid soon and don't like the 30 drive array limitation.
Ahh! So just running multiple HBAs and USB controllers passed through to the unraid VMs in ESXi? I've seen people run unraid VMs through ESXi and proxmox but never thought to run multiple VMs of it. Sometimes solutions to potential problems are right there in front of you lol!Note that unraid doesnt officially support it, that said, you actually just run unraid like you normally would just in a VM.
You use the esxi passthrough for a USB drive or USB bus with a flash drive for unraid and then the the HBA of the drives you want running in it.
Here's an example passing through 16 drives (on 2 HBA) and a usb controller:
View attachment 13970
You can connect them individually via SMB or NFS, but not as a single large data pool if thats what you're asking.
The instances would be separate.
Thank you for all the info! Super super helpful!Eh for me its not an issue, I don't have plants to have more than 20 drives currently for my desktops physical size limitation.
For all the features it has and how it works its ideal for me and alot of other users.
The limit has to due with support and demand rather than just being an artificial limiter (same for a multiple pool/array feature).
You can have more than 30 drives with the cache, but you can only have up to 28 data + 2 parity drives even on the 'unlimited'.
This product is intended to market to the hobbist/home lab user who generally is not getting into 30+ drive territory only a small handful of the users want or need more than that.
If you are thinking about 30+ drives unraid just might not be the solution for you, check our freenas, ceph or linux ZFS if so.
I saw this comment from one of their administrators:To be fair, 2 parities for 28x 2TB or 4TB is scary much less 8TB+.
I know its been suggested, but the last time multiple array pools was mentioned they said there wasn't anything on the roadmap planned.
I cant imagine needing more than the current max cache of 24 drives, the main data array I could see useful though, they have steadily increased that over the years, IIRC they started at 16 drive max then to 24, 28 and now the current max of 30.
Multiple cache pools being internally tested now. Multi array pools not in the cards for this release."" On 3/18/2020 at 4:13 AM, Gdtech said:
Anybody know when multiple cache or array pools be available ?
Ooo nice good to know, I might consider adding a hdd cache for a surveillance storage to get a raid 1 out of it (just running unassigned disk direct attached currently).I saw this comment from one of their administrators:
Multiple cache pools being internally tested now. Multi array pools not in the cards for this release."
That was actually one of the two biggest reasons I went with unraid, that you DONT actually lose the whole data pool even if 3+ drives fail.When they eventually release multiple array pools it'll be great! But ya, it'd be great to have more than max 2 parity drives too. But at least you only lose the data on the failed disk, not the whole data pool, if your parity also fails.
Did you complete the change over on this and get that DC HC510 set up as a Parity drive, and does it spin down on its own?So part of the changes I opted for a pair of DC HC510 SAS drive I picked up from @redeamon that I'm running preclear on now, I'm hoping this will speed up the parity check a bit so I can justify running it more than once a month, 19 hours is just too long.