[mrtg] Which filesystem for 40000 RRD files

Leonardo Reginin leonardo at procergs.rs.gov.br
Tue Dec 13 12:25:56 CET 2016


You could try SSDs with TRIM enable and block size optimization, since 
RRD files are fixed length.


On 13/12/2016 08:19, Pavel Ruzicka wrote:
> Hi all,
> I use MRTG where is about 40000 targets (RRD files).
> Every RRD file have about 100k.
> I have always troubles with I/O performance and I have idea if another
> filesystem will be better for me.
> I use EXT3 with these parameters.
> Line form /etc/mtab:
> /dev/sda4 /usr/local ext3 rw,noatime,commit=120 0 0
> I have CPU 2x Xeon(R) CPU 5160  @ 3.00GHz and 8GB RAM.
> 2x SAS 15000RPM disks in a hardware mirror.
> I have CENTOS 5 based distribution.
> Have somebody idea that with this distribution is better to use EXT4, BTRFS or
> XFS for bigger performance? Or it is better to stay on EXT3?
> Thanks, Pavel
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Leonardo Reginin

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