Hello everybody,

 

i hope i've chosen the right thread for my questions. If not, please dear admin feel free to move ^^.

 

I'm looking for a pool-storage solution like unRAID does and have some questions about unRAID:

 

1. Is it possible to create more than one pool?

2. Is it possible to explore the pool-content without spinning up all drives?

3. Is it possible just to use the pool-storage-function without any parity and RAID-solution-function?

4. I've asked the previous question because i've stumbled over a disadvantage concerning "fix silent errors". Is it right that SnapRAID has benefits in that case? ( http://snapraid.sourceforge.net/compare.html )

 

The pool-storage-function is the main-focus i'm looking for. So my last big question is about storage-handling.

 

5. It is really necessary to keep control on which drive certain data is located. For example i want to store all my music on hdd1 and hdd2. And it must be possible to move folders from hdd2 to hdd1 afterwards. What if one of the hdds is full? Can i tell unRAID where to store data in that case? I dont wanna use any balancing, i wanna always keep full control about my data and folder structure on each of the disks. Is that possible? It would be a great benefit if i have direct control when saving data. To read data i just wanna get acces to a mountpoint to enter the complete file- and folderstructure. And all that has to run on a linux-server connected to my home-network and being remote-controlled from a Windows machine.

 

6. One last question ^^: What's about the depth of the folder-structure? Is there a limitation or is unRAID able to handle filepaths with more than let's say 400 characters?

 

I'm grateful for any information in advance.

With greets scincerely, Mister Smith

If you don't use parity than what is the point of using unraid?

You can get this setup on almost any Linux distro using either zfs or btrfs. Except for #2 both of them will work.

Unraid is the only fs I know that will allow to only spin up the drive you are readibf and not the whole array.

 

 

 

 

Sent from my SGH-T889 using Tapatalk

 

 

1. Is it possible to create more than one pool?

No

2. Is it possible to explore the pool-content without spinning up all drives?

Yes but as a directory is explored the drives that directory is on will spin up unless you have something like cache-dirs installed

3. Is it possible just to use the pool-storage-function without any parity and RAID-solution-function?

Not sure why you would want it without the parity protection but Yes you can.

4. I've asked the previous question because i've stumbled over a disadvantage concerning "fix silent errors". Is it right that SnapRAID has benefits in that case? ( http://snapraid.sourceforge.net/compare.html )

I'm using SnapRAID on a Windows box but will be going to unRAID on a N54L when I get it in the next two weeks.  If you keep SHA or MD5 checksums on your files you don't really need to worry about finding the errors and if it is found you can restore from your backups.  Don't believe SnapRAID does any more than detect it either but I could be wrong. Didn't really research that aspect much just the parity protection.

5. It is really necessary to keep control on which drive certain data is located. For example i want to store all my music on hdd1 and hdd2. And it must be possible to move folders from hdd2 to hdd1 afterwards. What if one of the hdds is full? Can i tell unRAID where to store data in that case? I dont wanna use any balancing, i wanna always keep full control about my data and folder structure on each of the disks. Is that possible? It would be a great benefit if i have direct control when saving data. To read data i just wanna get acces to a mountpoint to enter the complete file- and folderstructure. And all that has to run on a linux-server connected to my home-network and being remote-controlled from a Windows machine.

No you don't need to.  You can let unRAID scatter files all over the place if you want.  That would mean that more drives spin up as you are accessing data so for that alone you might want to take control of where your data is.  I move files from disk to disk all the time using Midnight Commander (MC is the command) to organize directories on a single disk after the fact.

6. One last question ^^: What's about the depth of the folder-structure? Is there a limitation or is unRAID able to handle filepaths with more than let's say 400 characters?

Can't answer this one.

There is no limit on path length.