On 2009-07-02 at 11:31 -0400, Edward Ned Harvey wrote: > Until today, I only had one idea which came close - google gfs (not > global gfs) does exactly what I want except that it always writes to 3 > or more peers. If google gfs is available for use (can install and be > used on linux) and if it's configurable to take that number down to 1, > then it might do what I want.
I've double-checked the published paper on this, to be sure I'm not revealing anything not already published, but am just drawing your attention to things you've perhaps overlooked. GFS almost certainly doesn't do what you want. It gets some of its advantages by not being a regular file-system, you can't mount it and if you try to hack in support via FUSE then you can find some normal POSIX ops being rather unhealthy for the GFS cell. You'd need all of your applications to link against GFS client libraries. > Clarification - Suppose I have local raid 0+1, and I do random > read/write to those disks. Google GFS is not what you want. Files are append-only. You can hack around that, but it's probably more development work than you want to spend on it. -Phil, who has run GFS cells for a living _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
