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Jun
13
awarded  Popular Question
Feb
21
awarded  Student
Jan
28
comment ZFS + FreeBSD + virtualbox
Besides, why ZFS doesn't eliminate the single point of failure in the RAID controller? Actually that's one thing I couldn't understand in your first reply - seems that I can't just order the bunches of drives for the server from Dell - I have to order another controller to work with ZFS. Is that right? Then indeed I don't see much point using ZFS.
Jan
28
comment ZFS + FreeBSD + virtualbox
The free version has inferior performance, either I/O or some management issue. I can't remember the details now, but we used it before and decided to move on.
Jan
28
comment ZFS + FreeBSD + virtualbox
But, VMWare doesn't run on FreeBSD as host, or at least doesn't offer native I/O for guest. And running all FreeBSD guests on a Windows host makes me feel bad. If running VMWare on a linux host, the free version has inadequate performance, while we don't like the enterprise version since there are excellent free alternative. So we have moved to KVM and Xen long time ago. But they don't provide native I/O speed for FreeBSD as guest. That's why are are looking into virtualbox.
Jan
28
comment ZFS + FreeBSD + virtualbox
The problem is, if you google "ZFS CPU overhead" there are indeed quite some hits. Furthermore, there is a new ZFS feature that allows you to tune CPU utilization, see "ZFS System Processes and the New System Duty Cycle Scheduling Class" in constantin.glez.de/blog/2010/09/… . That got me worried.
Jan
28
comment ZFS + FreeBSD + virtualbox
The main attraction of ZFS in this setup is, it eliminates the single point of failure in the RAID controller. I'm also interested in snapshot, which may be useful for reverting guests, although virtual machine software can also do that. I'm very experienced with FreeBSD. Never worked with VirtualBox, but have quite some experience with KVM, vmware and zen (on centos). We need to have complete isolation of the email domains. They used to run on distinctive machines. We just start to virtualize them, but will never merge them into one machine.
Jan
28
asked ZFS + FreeBSD + virtualbox