> Using the native Vbox iscsi initiator for very simple tests I'm getting > slightly less than 20 MB/s write speed and VM takes a long time to boot > because of DMA LBA errors are being reported on the iscsi/sata disk. > > If I mount the iscsi on the host, I get close to 50 MB/s and then if I map > that to a Virtualbox raw disk, and stick in a VM I get around 42 MB/s write > speed. I haven't done any tuning on iscsi target so perhaps that could > improve things, but I'm concerned about the huge drop off in performance and > reliability issues with the Vbox native version. Does anyone have insight > into this? > > virtualbox-ose-3.2.12 > istgt-20110103 > > These are both recent 8-STABLE versions of Virtualbox.
have you measured the tcp/ip performance of the virtual box? last time I checked it was not that good, remeber that iscsi is TCP based. danny _______________________________________________ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to "freebsd-emulation-unsubscr...@freebsd.org"
