Hi, as I am taking a closer look into cloudstack, i wanted to ask some questions regarding storage and storage networks.
First my understanding of different setups - please correct me if my understanding was wrong. As far as I understand (until now ;-) ) there are several ways of providing dedicated storage networks for the use of primary and secondary storage. In the "basic" setup, storage traffic and management traffic would be transfert via the same interface (in the docs named "cloudbr0"). The next way of configuring storage / a storage network would be to give the secondary storage it's own physical network - usully named storage nework in the docs - which can be configured during a zone-setup and using a own Tag. Still management traffic and primary storage traffic would share the same interface. The third possible setup regarding storage / storage network would be to provide the hosts an dedicated nic for primary storage. This physical network won't need a dedicated traffic label as the hypervisor on the hosts would be able to connect to the storage-targets /-shares directly via the dedicated interface and IP-Address. This way only on the management labeled physical network only management would be transfered . The traffic for primary / secondary storage would be separated (combining storage-labeled physical network and direct attached storage network for the hosts). Another point i would need some information are in regards of changeing the above mentionend setups. So that in an small-scale setup i would start with the "minimal" approach using one interface for management and primary- / secondary storage and when needed e.g. separate the primary storage from management traffic? Last but not least can anybody suggest a suitable bandwith for a primary storage network or can provide reallife experience for example how 50 vms are running while using an 10Gb/s network for primary storage? (I know there are several other factors beside the actural network bandwith. This is just to get an impression about the performance of the system). Thanks in advance! Chris
