Re: Premature "No Space left on device" on XFS

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Hi Dave,


> 
> As it is, your problem is most likely fragmented free space
> (an
> aging problem). Inodes are allocated in chunks of 64, so
> require an
> -aligned- contiguous 16k extent for the default 256 byte
> inode size.
> If you have no aligned contiguous 16k extents free then
> inode
> allocation will fail.
> 

I understand from the mkfs.xfs man page "The  XFS  inode  contains a fixed-size part and a variable-size part."

1) Do you mean inodes are allocated in units of 64 at one go?
2) What is the size of the fixed-size part?
3) Are the fixed-size parts of inodes also allocated in units of 64 at one go?
4) Where are the fixed-size parts located?  On special extents just like the variable-size part?
5) What about the locality of the variable and fixed size parts of the inodes?  Can they be any distance apart?

Thanks!


GL

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