On 23/09/13 07:47, bdelagree wrote:
> Hello,
>
> This summer we invested in a PowerVault TL2000 library with two LTO5 drives 
> to safeguard our various servers.
>
> Today two of my servers take to save a lot because they contain many small 
> files for low volume (see the bottom of post)
> All my other servers backups quickly (20,000 KB/s to 30,000 KB/s)

This is normal. There's an overhead in opening each file and it adds up 
quickly.

I have 1Tb filesystems (98% full) with 7000-10000 files in them which 
take about 12 hours to run a full backup

I also have 1Tb filesystems (92% full) with 3-6 million files in them 
and they can take DAYS

(GFS is very slow in opening files. This makes the overhead even more 
painfully obvious - it takes 28 hours just to do a zero-byte incremental 
backup of the worst filesystem)





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