sorry it me again with another dumb question

[bbrinkmann]

I noticed when writing data to the array it was only writing to one disk. What am I missing? Sorry in advance, is this just a JBOD?

[Hoopster]

40 minutes ago, bbrinkmann said:

I noticed when writing data to the array it was only writing to one disk. What am I missing? Sorry in advance, is this just a JBOD?

In each share configuration, you can set which disks to use and when to use another disk via the allocation method, split level and minimum free space. 

 

An example (turn on help to see explanations):

 

There are also the Global Share settings (the defaults when adding a new share) in Settings -->Global Share Settings.  These of course can be changed on a share-by-share basis.

Edited March 17, 2022 by Hoopster

[JonathanM]

See if this helps explain things.

https://wiki.unraid.net/Manual/Overview#User_Shares

[paulrbeers]

4 hours ago, bbrinkmann said:

I noticed when writing data to the array it was only writing to one disk. What am I missing? Sorry in advance, is this just a JBOD?

Please see your last question.   I explained the basics to unraid.   Unraid does NOT treat an array like a traditional file server where all drives are used when reading and writing.   Unlike a traditional RAID 5 where blocks are written to all disks, unraid only writes a file to a single drive (and the parity drive if using a parity drive).   You will see no additional read performance or write performance (unless using a cache for writes) faster than a single drive.   Files are written to a single drive.