Re: [zfs-discuss] zfs send to older version

2012-10-24 Thread Darren J Moffat
On 10/24/12 17:44, Carson Gaspar wrote: On 10/24/12 3:59 AM, Darren J Moffat wrote: So in this case you should have a) created the pool with a version that matches the pool version of the backup server and b) make sure you create the ZFS file systems with a version that is supposed by the backu

Re: [zfs-discuss] zfs send to older version

2012-10-24 Thread Carson Gaspar
On 10/24/12 3:59 AM, Darren J Moffat wrote: So in this case you should have a) created the pool with a version that matches the pool version of the backup server and b) make sure you create the ZFS file systems with a version that is supposed by the backup server. And AI allows you to set the

Re: [zfs-discuss] zfs send to older version

2012-10-24 Thread Darren J Moffat
On 10/24/12 03:16, Edward Ned Harvey (opensolarisisdeadlongliveopensolaris) wrote: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Karl Wagner The only thing I think Oracle should have done differently is to allow either a downgrade or crea

Re: [zfs-discuss] zfs send to older version

2012-10-23 Thread Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Karl Wagner > > The only thing I think Oracle should have done differently is to allow > either a downgrade or creating a send stream in a lower version > (reformatting the data where necessary

Re: [zfs-discuss] zfs send to older version

2012-10-23 Thread Karl Wagner
Actually, I think there is a world of difference. Backwards compatibility is something we all need. We need to be able to access content created in previous versions of software in newer versions. You cannot expect an older version to be compatible with the new features in a later version. T

Re: [zfs-discuss] zfs send to older version

2012-10-23 Thread Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
> From: Richard Elling [mailto:richard.ell...@gmail.com] > > At some point, people will bitterly regret some "zpool upgrade" with no way > back. > > uhm... and how is that different than anything else in the software world? > > No attempt at backward compatibility, and no downgrade path, not eve

Re: [zfs-discuss] zfs send to older version

2012-10-22 Thread Richard Elling
On Oct 19, 2012, at 4:59 PM, Edward Ned Harvey (opensolarisisdeadlongliveopensolaris) wrote: >> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- >> boun...@opensolaris.org] On Behalf Of Richard Elling >> >>> At some point, people will bitterly regret some "zpool upgrade" with no

Re: [zfs-discuss] zfs send to older version

2012-10-20 Thread Jim Klimov
2012-10-20 3:59, Edward Ned Harvey (opensolarisisdeadlongliveopensolaris) пишет: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Richard Elling At some point, people will bitterly regret some "zpool upgrade" with no way back. uhm... and how

Re: [zfs-discuss] zfs send to older version

2012-10-19 Thread Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Richard Elling > >> At some point, people will bitterly regret some "zpool upgrade" with no way >> back. > > uhm... and how is that different than anything else in the software world? No atte

Re: [zfs-discuss] zfs send to older version

2012-10-19 Thread Richard Elling
On Oct 19, 2012, at 1:04 AM, Michel Jansens wrote: >> On 10/18/12 21:09, Michel Jansens wrote: >>> Hi, >>> >>> I've been using a Solaris 10 update 9 machine for some time to replicate >>> filesystems from different servers through zfs send|ssh zfs receive. >>> This was done to store disaster r

Re: [zfs-discuss] zfs send to older version

2012-10-19 Thread Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Ian Collins > > You have to create pools/filesystems with the older versions used by the > destination machine. Apparently "zpool create -d -o version=28" you might want to do on the new syst

Re: [zfs-discuss] zfs send to older version

2012-10-18 Thread Ian Collins
On 10/18/12 21:09, Michel Jansens wrote: Hi, I've been using a Solaris 10 update 9 machine for some time to replicate filesystems from different servers through zfs send|ssh zfs receive. This was done to store disaster recovery pools. The DR zpools are made from sparse files (to allow for ea