On Jun 12, 2008, at 12:46 PM, Chris Siebenmann wrote: > > Or to put it another way: disk space is a permanent commitment, > servers are not.
In the olden times (e.g. 1980s) on various CDC and Univac timesharing services, I recall there being two kinds of storage ... "dayfiles" and permanent files. The former could (and as a matter of policy did) be removed at the end of the day. It was typically cheaper to move the fraction of one's dayfile output to tape, and have it rolled back in the next day ... but that was an optimization (or pessimization if the true costs were calculated). I could easily imagine providing two tiers of storage for a university environment ... one which wasn't backed up, and doesn't come with any serious promises ... which could be pretty inexpensive and the second tier which has the kind of commitments you suggest are required. Tier 2 should be better than storing things in /tmp, but could approach consumer pricing ... and still be "good enough" for a lot of uses. -- Keith H. Bierman [EMAIL PROTECTED] | AIM kbiermank 5430 Nassau Circle East | Cherry Hills Village, CO 80113 | 303-997-2749 <speaking for myself*> Copyright 2008 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
