[zfs-discuss] Re: update on zfs boot support

2007-03-19 Thread Dagobert Michelsen
Hi Richard, > The consensus best > practice is to have enough RAM that you don't need to > swap. If you need to > swap, your life will be sad no matter what your disk > config is. >From my understanding Solaris does not overcommit memory allocation, so every >allocation must be backed by some f

[zfs-discuss] Re: Cluster File System Use Cases

2007-03-01 Thread Dagobert Michelsen
Hi, my main interest is sharing a zpool between machines, so the zfs filesystems on different hosts can share a single lun. When you run several applications each in a different zone and allow the zones to be run on one of several hosts individually (!) this currently means at least one separat

[zfs-discuss] Re: Multiple Read one Writer Filesystem

2007-01-17 Thread Dagobert Michelsen
Hi Torrey, > On 1/15/07, Torrey McMahon <[EMAIL PROTECTED]> > wrote: > What you will find is that while you can mount the > UFS (ZFS should > prevent mounting but that's another story), any > updates on previously > read files will not be visible. Actually it's quite worth with UFS: mounting a fi

[zfs-discuss] Re: ZFS and Virtualization

2006-06-23 Thread Dagobert Michelsen
Hello Nate, > > I have few issues about ZFS and virtualization: > > > > [b]Virtualization and performance[/b] > > When filesystem traffic occurs on a zpool > containing > > only spindles dedicated to this zpool i/o can be > > distributed evenly. When the zpool is located on a > > lun sliced from a

[zfs-discuss] Re: Properties of ZFS snapshots I'd like to see...

2006-06-21 Thread Dagobert Michelsen
Hi Constantin, > The basic problem with regular snapshotting is that you end up managing so > many of them. Wouldn't it be nice if you could assign an expiration date to a > snapshot? The only reason you want the snapshot removed is because you don't want your pool to become full. IIRC VxFS has

[zfs-discuss] ZFS and Virtualization

2006-06-21 Thread Dagobert Michelsen
Hi experts, I have few issues about ZFS and virtualization: [b]Virtualization and performance[/b] When filesystem traffic occurs on a zpool containing only spindles dedicated to this zpool i/o can be distributed evenly. When the zpool is located on a lun sliced from a raid group shared by multi