Re: [zfs-discuss] prstat -Z and load average values in different zones give same numeric results

2009-04-23 Thread Henrik Johansson
Hello Nobel, On Apr 23, 2009, at 1:53 AM, Nobel Shelby wrote: Folks, Perplexing question about load average display with prstat -Z Solaris 10 OS U4 (08/07) We have 4 zones with very different processes and workloads.. The prstat -Z command issued within each of the zones, correctly displays

[zfs-discuss] Unexpectedly poor 10-disk RAID-Z2 performance?

2009-04-23 Thread Rince
Hail, caesar. I've got a 10-disk RAID-Z2 backed by the 1.5 TB Seagate drives everyone's so fond of. They've all received a firmware upgrade (the sane one, not the one that caused your drives to brick if the internal event log hit the wrong number on boot). They're attached to an ARC-1280ML, a

Re: [zfs-discuss] Unexpectedly poor 10-disk RAID-Z2 performance?

2009-04-23 Thread Bob Friesenhahn
On Thu, 23 Apr 2009, Rince wrote: I presume I'm missing something, but I have no idea what. Halp? The main thing to be aware of with raidz and raidz2 is that the devices in a vdev are basically chained together so that you get an effective one disk's worth of IOPS per vdev. They are very

Re: [zfs-discuss] zfs promote/destroy enhancements?

2009-04-23 Thread Matthew Ahrens
Ed, zfs destroy [-r] -p sounds great. I'm not a big fan of the -t template. Do you have conflicting snapshot names due to the way your (zones) software works, or are you concerned about sysadmins creating these conflicting snapshots? If it's the former, would it be possible to change the

Re: [zfs-discuss] zfs promote/destroy enhancements?

2009-04-23 Thread Nicolas Williams
On Thu, Apr 23, 2009 at 09:59:33AM -0600, Matthew Ahrens wrote: zfs destroy [-r] -p sounds great. I'm not a big fan of the -t template. Do you have conflicting snapshot names due to the way your (zones) software works, or are you concerned about sysadmins creating these conflicting

Re: [zfs-discuss] zfs promote/destroy enhancements?

2009-04-23 Thread Edward Pilatowicz
On Thu, Apr 23, 2009 at 11:31:07AM -0500, Nicolas Williams wrote: On Thu, Apr 23, 2009 at 09:59:33AM -0600, Matthew Ahrens wrote: zfs destroy [-r] -p sounds great. I'm not a big fan of the -t template. Do you have conflicting snapshot names due to the way your (zones) software works, or

Re: [zfs-discuss] zfs promote/destroy enhancements?

2009-04-23 Thread Edward Pilatowicz
On Thu, Apr 23, 2009 at 09:59:33AM -0600, Matthew Ahrens wrote: Ed, zfs destroy [-r] -p sounds great. I'm not a big fan of the -t template. Do you have conflicting snapshot names due to the way your (zones) software works, or are you concerned about sysadmins creating these conflicting

Re: [zfs-discuss] zfs promote/destroy enhancements?

2009-04-23 Thread Nicolas Williams
On Thu, Apr 23, 2009 at 11:25:54AM -0700, Edward Pilatowicz wrote: an interesting idea. i can file an RFE on this as well, but there are a couple side effects to consider with this approach. setting this property would break zfs snapshot -r if there are multiple snapshots and clones of a