Hi Jordi, To clarify - this new node going to take you up to six nodes with the sixth one of vastly different system spec to the others, in what configuration will it be, dist+rep or straight distributed ? An hard question either way without knowing a little more about the hardware and a lot more about expected usage patterns. How random are the access going to be, what's your expected read hit rate, and then how fast are the disks? Memory as buffer (FS) cache but isn't necessarily needed until your cache miss overflow exceeds the performance of the drives. Cheers. On 12/23/2010 07:27 PM, admin iqtc wrote: > Dear list, > > we are planning to add a new node in our Gluster cluster ( 5 nodes with 5TB > and 8GB RAM each node and gigabit connection). > > This new node will consist a 24TB disk and 16GB of RAM. Do you think that it > could be some performance problem with this proportion? A lot of disk in > front of memory capacity. We are multiplying x6 disk capacity and only x2 > memory capacity. > > Any guide line we should follow for calculating the memory requirements > etc.? > > thanks in advance, > > best regards, > > > jordi
