2012/9/10 Stephan von Krawczynski <sk...@ithnet.com>: > On Mon, 10 Sep 2012 09:39:18 +0100 > Brian Candler <b.cand...@pobox.com> wrote: > >> On Mon, Sep 10, 2012 at 09:29:25AM +0800, Jack Wang wrote: >> > below patch should fix your bug. >> >> Thank you Jack - that was a very quick response! I'm building a new kernel >> with this patch now and will report back. >> >> However, I think the existence of this bug suggests that Linux with software >> RAID is unsuitable for production use. There has obviously been no testing >> of basic critical functionality like hot-plugging drives, and serious >> regressions are introduced into supposedly "stable" kernels. > > Brian, please re-think this. What you call a stable kernel (Ubuntu 3.2.0-30) > is indeed very old. > If you want to check a MD raid you should really use a stock kernel from > kernel.org (probably 3.4.10). > _That_ is the latest stable kernel. > 3.2 sery is stable tree too. for the bug above 3.4.10 should be affected too as I know.
>> So I'm now on the lookout for a 24-port SATA RAID controller with good Linux >> support. What are my options? >> >> Googling I have found: >> >> * 3ware 9650SE-24 >> * Areca ARC-1280ML >> * LSI MegaRAID 9280-24i (newer SAS/SATA) >> * Areca ARC-1882ix-24 (newer SAS/SATA) > > I can tell you that I just had to throw away Areca because it had exactly the > problem you don't like: drives going offline for no good reason. > I went back to MD with the very same drives in the very same box, online using > the onboard SATA (6 ports) which works flawlessly. > My impression is Areca has troubles with new big drives of 2 TB and above. The > 1TB worked ok. > I have some 3ware too, but did not check them with 2TB drives so far. > I must say I would probably drop them only because current processors are > faster with MD anyway. I just built a box with XEON E3-1280v2 with MD raid > 4x2TB and I am impressed by the performance. Yes, I prefer using HBA with MD too. MD is stable and has better performance. 6G HBA from LSI, PMC is known good quality. Jack > -- > Regards, > Stephan > _______________________________________________ Gluster-users mailing list Gluster-users@gluster.org http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
