On Tue, Sep 29, 2009 at 09:45:53AM +0200, Simon Matter wrote: > What I'm really wondering, what filesystem disasters have others seen? How > many times was it fsck only, how many times was it really broken. I'm not > talking about laptop and desktop users but about production systems in a > production environment with production class hardware and operating > systems. Well - we lost three drives in a 3TB RAID6 partition within 24 hours. That was sad. The third drive wasn't totally lost, just throwing enough errors that we remounted the whole thing readonly and kept it around to supplement the backup restores. > Would be really interesting to get some of the good and bad stories even > if not directly related to Cyrus-IMAP. Honestly, the biggest thing is - I've got a unit I've just switched drives in. It has 4 x 300GB 15kRPM drives in two RAID1 sets, and 8 x 2TB drives in two RAID5 sets. That's 12TB of data space plus a bit of room for meta. Those 2TB drives spin at 7k2RPM, that's not that fast. It takes weeks to fill one of those things, and weeks again to copy data off. Once you start talking multi-day downtimes to restore data, that's when your customers take their business elsewhere, and fair enough. Ok if you're a university or business with a captive customer base, but not so nice if you're trying to keep customers! Bron. ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
