tag:blogger.com,1999:blog-9726833.post4980258322785624941..comments2023-11-11T19:20:51.515+00:00Comments on The Trouble with Tribbles...: Thoughts on ZFS compressionPeter Tribblehttp://www.blogger.com/profile/09363446984245451854noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-9726833.post-1740720114062602032011-08-15T15:29:10.686+01:002011-08-15T15:29:10.686+01:00FYI: we also had debated the established merits of...FYI: we also had debated the established merits of compression and its widespread usage, especially as you call out in regard to LZJB, hence the decision was made to enable LZJB by default in NexentaStor v3.1 for all new deployments.<br /><br />For existing (upgrades), we leave the setting as is, but in new deployments we consider it a positive worth exploiting for most of our customer base.Craig Morganhttp://nexenta.comnoreply@blogger.comtag:blogger.com,1999:blog-9726833.post-80078473324130928152011-08-08T19:19:02.204+01:002011-08-08T19:19:02.204+01:00Dedup has considerable memory implications so make...Dedup has considerable memory implications so makes sense on a dedicated storage system with plenty of RAM and L2ARC. Where there are big gains it can be worthwhile but it is not free.triplettravelhttps://www.blogger.com/profile/13247080315800730681noreply@blogger.comtag:blogger.com,1999:blog-9726833.post-18512690299274708422011-08-08T10:52:57.266+01:002011-08-08T10:52:57.266+01:00okay? What cost? It seems to me (and I'm loooo...okay? What cost? It seems to me (and I'm loooong away from some ZFS expert) that it does almost the same. Do you know where I can read more about the pros and cons of dedup vs. compression?Christer Solskogenhttps://www.blogger.com/profile/13454633722310426522noreply@blogger.comtag:blogger.com,1999:blog-9726833.post-15999096519851589222011-08-08T10:00:42.771+01:002011-08-08T10:00:42.771+01:00Dedup is another issue entirely. I regard ZFS dedu...Dedup is another issue entirely. I regard ZFS dedup as essentially unusable except for very highly specialized niche tasks. For normal use it has essentially no benefit for us, and comes at a horrific cost.Peter Tribblehttps://www.blogger.com/profile/09363446984245451854noreply@blogger.comtag:blogger.com,1999:blog-9726833.post-65424656079104770582011-08-08T09:30:56.587+01:002011-08-08T09:30:56.587+01:00But how about dedup? Do you enable both?But how about dedup? Do you enable both?Christer Solskogenhttps://www.blogger.com/profile/13454633722310426522noreply@blogger.comtag:blogger.com,1999:blog-9726833.post-25970830931211769992011-08-07T20:52:53.660+01:002011-08-07T20:52:53.660+01:00I have a very similar experience in this regard.I have a very similar experience in this regard.milekhttps://www.blogger.com/profile/13649951503953000496noreply@blogger.com