On Fri, 2015-06-19 at 17:23 +0200, Stijn De Weirdt wrote: > hi marc, > > > > 1. YES, Native Raid can recover from various failures: drawers, cabling, > > controllers, power supplies, etc, etc. > > Of course it must be configured properly so that there is no possible > > single point of failure. > hmmm, this is not really what i was asking about. but maybe it's easier > in gss to do this properly (eg for 8+3 data protection, you only need 11 > drawers if you can make sure the data+parity blocks are send to > different drawers (sort of per drawer failure group, but internal to the > vdisks), and the smallest setup is a gss24 which has 20 drawers). > but i can't rememeber any manual suggestion the admin can control this > (or is it the default?). >
I got the impression that GNR was more in line with the Engenio dynamic disk pools http://www.netapp.com/uk/technology/dynamic-disk-pools.aspx http://www.dell.com/learn/us/en/04/shared-content~data-sheets~en/documents~dynamic_disk_pooling_technical_report.pdf That is traditional RAID sucks with large numbers of big drives. JAB. -- Jonathan A. Buzzard Email: jonathan (at) buzzard.me.uk Fife, United Kingdom. _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at gpfsug.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
