Hello,
I'm with a problem about slow backup's using SQLCOMPRESSION. My database runs on a SQL Server 2012 Enterprise edition x64 with 40 CPU's and 256GB RAM.
If i start a backup without compression, my database is like 7.8TB size, and my NIC adapter ( 10Gbit ) reaches like 70% ( between 650mb\s and 750mb\s )
If i use my backup with compression, my database get's like 1.8TB which is very good, but my NIC adapter just reaches 12% ( between 100mb\s and 150mb\s ) maximum, and always transfer in a constant speed, with no up's and downs.
Part of my "batch" file:
STRIPES 24
MAXTRANSFERSIZE 6
BLOCKSIZE 7
NUMBUFS 32
SQLCOMPRESSION TRUE
ENDOPER TRUE
This behaviour is normal ? I don't expect with compression to get the same speeds, but 12% of my 10GBIT NIC is very low...
Thanks !