On 24/02/13 02:57, John Stoffel wrote: > > Adam, > > Can I please ask you to sit down and write a paper for USENIX on this > whole issue and how you resolved it? You and Stan have done a great > job here documenting and discussing the problems, troubleshooting > methods and eventual solution(s) to the problem. > > It would be wonderful to have some diagrams to go with all this > discussion, showing the original network setup, iSCSI disk setup, > etc. Then how to updated and changed thing to find bottlenecks. > > The interesting thing is the complete slowdown when using LVM > snapshots, which points to major possibilities for performance > improvements there. But those improvements will be hard to do without > being able to run on real hardware, which is expensive for people to > have at home. > > I've been following this discussion from day one and really enjoying > it and I've learned quite a bit about iSCSI, networking and some of > the RAID issues. I too run Debian stable on my home NFS/VM/mail/mysql > server and I've been getting frustrated by how far back it is, even > with backports. I got burned in the past by testing, which is why I > stay on stable, but now I'm feeling like I'm getting burned on stable > too. *grin* It's a balancing act for sure! I've never writen anything like that, but I think I could write a book on this. I keep thinking I should get a blog and put stuff like this on there, but there is always something else to do, and I'm not the sort of person to write in my diary every day :) I've already written up a sort of non-technical summary for the client (about 5 pages), and just sent a non-detailed technical summary to the list. Once everything is completed and settled, I can try and combine those two, maybe throw in a bunch of extra details (command lines, config files, etc), and see where it ends up. I suppose you are volunteering as editor <G> Regards, Adam -- Adam Goryachev Website Managers www.websitemanagers.com.au -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html