well how about underlying volume monitoring, right now if an underlying volume goes bad Gluster doesnt know about it but if it could detect issues in the file system and or physical disk it would be useful in the future for automatically migrating the data off the effected brick(s) this would allow Gluster to be used on flat disks without underlying raid. By the way I wouldn't get too excited about what Isolon is doing with SSD cache nodes. Its effectiveness varies depending on the size of the files you are dealing with. It really only makes the handling of small files faster but while handling large files larger files it actually can slow the cluster down. This is because spinning disks doing sequential reads of large files are still faster than SSD's. Isolon has some great sales people with a lot of technical knowledge about their products, but for obvious reasons they tend to avoid telling you their known weak point till you are already buying from them and even then they are hesitant to tell you unless you have a serious problem which could be solved by buying more hardware from them. SSD's handle random access of small files well. Isolons traditionally have poor performance with small files but very good performance with large files. what the SSD cache node is really useful for is if you have a lot of small files on your Isolon cluster (which you shouldn't) it significantly increases the speed on those small files and reduces the overhead caused by accessing small files on the storage nodes. That said if you have mostly large files and few to no small files which is what Isolon storage clusters were designed to do the SSD cache node is just a pointless expense. On Thu, Mar 13, 2014 at 6:38 PM, Ted Miller <tmiller@xxxxxxxx> wrote: > > [snip] > > 2) We have a recurring issue with split-brain solution. There is an entry on > trello asking/suggesting a mechanism that arbitrates this resolution > automatically. I pretty much think this could come together with another > solution that is file replication consistency check. > > Anything to improve split-brain resolution would get my vote. > > Ted Miller > Elkhart, IN > > > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://supercolony.gluster.org/mailman/listinfo/gluster-users _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
