Re: [zfs-discuss] zfs reliability under xen

2009-05-22 Thread John Levon
On Sun, May 17, 2009 at 02:16:01PM +0300, Ahmed Kamal wrote: > I am wondering whether the reliability of solaris/zfs is still guaranteed if > I will be running zfs not directly over real hardware, but over Xen > virtualization ? The plan is to assign physical raw access to the disks to > the xen g

Re: [zfs-discuss] Dreadful lofi read performance on snv_111

2009-04-06 Thread John Levon
On Mon, Apr 06, 2009 at 04:46:12PM +0700, Fajar A. Nugraha wrote: > On Mon, Apr 6, 2009 at 4:41 PM, John Levon wrote: > > I see a couple of bugs about lofi performance like 6382683, but I'm not > > sure if this > > related, it seems to be a newer issue. >

[zfs-discuss] Dreadful lofi read performance on snv_111

2009-04-06 Thread John Levon
On snv_111 OpenSolaris. heaped is snv_101b, both ZFS: # mount -F hsfs /rpool/dc/media/OpenSolaris.iso /mnt # ptime cp /mnt/boot/boot_archive /var/tmp real 3:31.453461873 user0.003283729 sys 0.376784567 # mount -F hsfs /net/heaped/export/netimage/opensolaris/vnc-fix.iso /mnt2

Re: [zfs-discuss] xVM GRUB entry incorrect with ZFS root

2008-08-28 Thread John Levon
On Thu, Aug 28, 2008 at 09:25:14AM -0700, Trevor Watson wrote: > Looking at the GRUB menu, it appears as though the flags "-B $ZFS-BOOTFS" are > needed to be passed to the kernel. Is this something I can add to: kernel$ > /boot/$ISADIR/xen.gz or is there some other mechanism required for bootin

Re: [zfs-discuss] [caiman-discuss] swap & dump on ZFS volume

2008-06-30 Thread John Levon
On Mon, Jun 30, 2008 at 04:19:15PM -0700, Jeff Bonwick wrote: > (2) In a virtualized environment, a better way to get a crash dump > would be to snapshot the VM. This would require a little bit > of host/guest cooperation, in that the installer (or dumpadm) > would have to know that i