On 6/25/2015 8:59 AM, Alan Brown wrote: > On 25/06/15 13:47, SPQR wrote: >> Hello again, >> >> at the moment I'm using compression = gzip; how can I change the level of >> compression? >> >> Can I just write compression = lzo without any problems? > Yes, but..... > > If you reduce the compression level then the disk will be hit harder, > which means that your io load will go up. > > About compression: > > There is no need to use compression if the client's connection to server > is 1Gb/s or faster and not much point at 100Mb/s. (Compression > frequently slows things down at higher speeds as the CPU becomes a > bottleneck. Using it is a tradeoff.) > > Compression is one of those things best only used for backups across a > WAN. If you myst use it, then _benchmark_ things with and without. Most > of the time where you think it will benefit communications on the wire > you will find it actually penalises throughput.
However, for backup devices lacking hardware compression (such as disk), compression may be warranted regardless of client connection speed. This is why a SD level compression feature would be useful. ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
