For the cifs side of the house, I think it would be in Sun's best interest to work with a third party vendor like NTP software. The quota functionality they provide is far more robust than anything I expect we'll ever see come directly with zfs. And rightly so... it's what they specialize in.
http://www.ntpsoftware.com/products/qfs/?adrid= On Sat, Jun 7, 2008 at 2:20 PM, Al Hopper <[EMAIL PROTECTED]> wrote: > On Fri, Jun 6, 2008 at 4:14 PM, Peter Tribble <[EMAIL PROTECTED]> > wrote: > ... very big snip ... > > (Although I have to say that, in a previous job, scrapping user quotas > entirely > > not only resulted in happier users, much less work for the helpdesk, and > - > > paradoxically - largely eliminated systems running out of space.) > > [Hi Peter] > > Agreed. > > So, one has to re-evaluate "legacy" thinking in the context of > inexpensive storage offered by ZFS in combination with cost effective > disk drives and ask the question: what lowers the total cost of > ownership and provides the best user experience? > > Option a) A complex quota based system implemented on top of providing > the "correct" required system storage capacity. > > Option b) A ZFS based storage system with x2 or x4 (etc) times the > "correct" required storage capacity with a once a day cron job to > remind the storage hogs (users) to trim their disk space, or face the > "or else" option (the stick approach). And perhaps a few quotas on > filesystems used by applications or users know to be problematic. > > I would submit that Option b) will provide a lower cost, in terms of > total system cost, over time - expecially given the price performance > of modern disk drives in combination with high performance log and > cache devices (if required). > > Every time I've come across a usage scenario where the submitter asks > for per user quotas, its usually a university type scenario where > univeristies are notorious for providing lots of CPU horsepower (many, > many servers) attached to a simply dismal amount of back-end storage. > Where users are, and continue to be, miffed at the dismal amount of > storage they are offered. This is legacy thinking looking for a > "legacy-thinking-compliant" solution to a problem that has already > been solved by ZFS and the current generation of high capacity, ultra > low-cost per terabyte, offered by modern hardware. IOW - it's a > people issue, rather than a technological issue. > > Regards, > > -- > Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED] > Voice: 972.379.2133 Timezone: US CDT > OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007 > http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/ > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
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