[zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Nathan Kroenert
Hi all, Exec summary: I have a situation where I'm seeing lots of large reads starving writes from being able to get through to disk. Some detail: I have a newly constructed box (was an old box, but blew the mobo - different story - sigh). Anyhoo - It's a Gigabyte 890GPA-UD3H - with lots

Re: [zfs-discuss] native ZFS on Linux

2011-02-13 Thread Pasi Kärkkäinen
On Sat, Feb 12, 2011 at 08:54:26PM +0100, Roy Sigurd Karlsbakk wrote: I see that Pinguy OS, an uber-Ubuntu o/s, includes native ZFS support. Any pointers to more info on this? There are some work in progress from http://zfsonlinux.org/, but the posix layer was still lacking last I checked

Re: [zfs-discuss] native ZFS on Linux

2011-02-13 Thread Fajar A. Nugraha
On Sun, Feb 13, 2011 at 7:40 PM, Pasi Kärkkäinen pa...@iki.fi wrote: On Sat, Feb 12, 2011 at 08:54:26PM +0100, Roy Sigurd Karlsbakk wrote: I see that Pinguy OS, an uber-Ubuntu o/s, includes native ZFS support. Any pointers to more info on this? There are some work in progress from

Re: [zfs-discuss] native ZFS on Linux

2011-02-13 Thread Malte Schirmacher
On 12.02.2011 18:18, David E. Anderson wrote: I see that Pinguy OS, an uber-Ubuntu o/s, includes native ZFS support. Any pointers to more info on this? Thre are currently three different ways, to get ZFS working on linux. First the implementation by kqstore. They largly used the work from

Re: [zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Richard Elling
On Feb 13, 2011, at 12:56 AM, Nathan Kroenert nat...@tuneunix.com wrote: Hi all, Exec summary: I have a situation where I'm seeing lots of large reads starving writes from being able to get through to disk. Some detail: I have a newly constructed box (was an old box, but blew the mobo -

[zfs-discuss] Fwd: native ZFS on Linux

2011-02-13 Thread David E. Anderson
I found out from the distro maintainer that the kernel uses source from zfsonlinux.org's git repository, but have not found someone who has mounted a zfs filesystem, so I don't know the status of the port. I wonder if the kqstor code was merged into this repository? -- Forwarded message

[zfs-discuss] ACL for .zfs directory

2011-02-13 Thread Ian Collins
While scanning filesystems looking fro who has read access to files, I see the ACL type of the .zfs/snapshot directory varies between releases (non-ZFS in Solaris 10, ZFS in Solaris 11 Express). Is this documented anywhere? -- Ian. ___ zfs-discuss

Re: [zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Nathan Kroenert
Hi Steve, Thanks for the thoughts - I think that everything you asked about is in the original email - but for reference again, it's 151a (s11 express). Are you really suggesting, for a single user system I need 16GB of memory, just to get ZFS to be able to write when it's reading? (and even

Re: [zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Nathan Kroenert
On 14/02/2011 4:31 AM, Richard Elling wrote: On Feb 13, 2011, at 12:56 AM, Nathan Kroenertnat...@tuneunix.com wrote: Hi all, Exec summary: I have a situation where I'm seeing lots of large reads starving writes from being able to get through to disk. snip What is the average service time