Performance will be higher or lower then 125MB/s. It depends on the filesizes and file-type since ISCSI does some buffer and compression.
I had 125MB/s for some files over a 2Mb/s SDSL line. But that declined to 30Kb/s when the buffers ran full. Kind regards, The out-side Op 15 nov. 2012 om 21:53 heeft Timothy Coalson <[email protected]> het volgende geschreven: > On Thu, Nov 15, 2012 at 5:38 AM, Florian <[email protected]> wrote: > >> Hello, >> >> has someone experience with Linux software-raid with two Comstar iSCSI >> volumes from two OI servers? >> >> I tested this on a virtual machine, but it would be great, if I can get >> some experience with such a combination! >> >> Will this work without problems? The Linux Server is connected through one >> Gbit Interface to a switch and this switch is connected to the two OI >> servers. Will there be a bottleneck? Can I get full Gbit speed or is this >> speed divided due to the mirroring of the iSCSI volumes? > > Just from how linux software raid1 works, I would expect your maximum write > throughput to the md device to be half the network throughput, since it has > to write every block to both servers through one link. Reading is likely > to only read any given block from one device, so full network throughput is > likely there (assuming no congestion, etc). > > Gigabit network with theoretical peak at 125MB/s will probably be your > bottleneck unless the pools containing the zvols have rather poor > performance. > > Tim > _______________________________________________ > OpenIndiana-discuss mailing list > [email protected] > http://openindiana.org/mailman/listinfo/openindiana-discuss _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
