On Tue, Jan 19, 2010 at 11:36 AM, Richard Elling <richard.ell...@gmail.com>wrote:
> On Jan 19, 2010, at 1:53 AM, Julian Regel wrote: > > > When we brought it up last time, I think we found no one knows of a > > > userland tool similar to 'ufsdump' that's capable of serializing a ZFS > > > along with holes, large files, ``attribute'' forks, windows ACL's, and > > > checksums of its own, and then restoring the stream in a > > > filesystem-agnostic read/write/lseek/... manner like 'ufsrestore'. > > > > This has been something I've been working on for the last few days and > I've not yet found an adequate solution. I've looked at tar, cpio and pax as > potential tools for backing up a ZFS filesystem to tape, but each has > limitations. As of today, Sun do not provide the ability to reliably backup > a Solaris installation without resorting to third party tools. This is > crazy! > > > > The beauty of ufsdump/ufsrestore is that because it's bundled with the > operating system, I can perform bare metal recovery using a Solaris DVD and > locally attached tape drive. It's simple and arguably essential for system > administrators. > > Yep. And it was invented because there was no option other than tar > at the time. Today, there are many very comprehensive backup solutions > on the market including open source. Some are nicely integrated, such > as NexentaStor and Zmanda. > > > From my perspective, Sun really need to create a zfsdump/zfsrestore set > of commands that perform block level backups of a specified filesystem (or > snapshot) and that preserves ACLs, atime, sparse files, handles multiple > tapes (many of us still use and rely on tape!) etc. > > In my crystal ball, I see a divergence away from traditional backup > solution approaches. Today you can feel comfortable with backing up > ZFS file systems because they provide a POSIX file system interface. > Other datasets don't resemble POSIX file systems at all, and I see several > different types of datasets with the opportunity to become popular with > the basic ZVol getting a lot of attention lately. The win will go to the > vendor who can provide the best value for the various datasets in the ZFS > environment. > > > Does anyone know the process to formally request this (we have a support > contract), or would I be wasting my time? > > You can pile onto CR 5004379, want comprehensive backup strategy > http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=5004379 > > I can't answer the latter, but judging by the date of the CR, I wouldn't > hold my > breath. Give the fine folks at Zmanda a look. > > Also, the ADM project seems to be dead. Unfortunate? > http://hub.opensolaris.org/bin/view/Project+adm/WhatisADM > -- richard > > I'm likely missing something, so please, fill me in. Aren't they simply asking for the functionality already provided by NDMP? -- --Tim
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