Hi
stupid question...Does Cloudstack support ESXi 5U1? i had it running on Ubuntu 10.4 using ESXi4 Hyper-visors and it worked OK. So will it work with ESXi5? I don't see any specific statements saying it will in the docs? 2Nd San Vs ISCSI or NFS I have infiniband 40GB QDR SAN from Quantastor (www.osnexus) who ive been working with this last year to integrate Infiniband into the SAN (uses Ubuntu) so we now have a SRP Infiniband SAN, which also does iSCSI so the issues lately have been ESXi 5 and 4 Drivers for SRP. There is no SRP driver for ESXi5. But there is a new Infiniband (IB) driver which supports IP or IPOIB. I now have ESXi 5 working with IB ISCSI and can easily get 14GB/s i can transfer 5GB of data on a VM to VM @450-500MB/s in 25 seconds. so its quite fast. But not as fast as SRP Using SRP i easily get 32GB/s on ESXi4. (quad path MPIO) (yes GB for those reading! not Gb/s) so i can zip data round really quickly especially Vmotions etc. I have 2 SAN head units (12 x 1TB WD VR) in each. in Raid 5 and they happily spit out. pushing 10GB of data to and from, takes a mere 40-50 seconds. The problem is i want to use ESXi5 now not 4. SRP is still a little unstable. By that i mean some times there are connection issues with the IB Bus and vmware takes 1-2 mins to rescan/connect to Luns. Also when using clustered Storage for VCenter clusters, the nodes occasionally drop the Lun access and have to be restarted to reconnect to IB SAN. this isnt a problem with ISCSI ive noticed. But in production cloud it would be if nodes just dropped storage randomly. So 3rd Question.! does CloudStack support SAN (IB SRP) shows up as a san SCSI device in vmware. Again i cant find any definitive answers in the docs? Im thinking i will run SRP for Ubuntu management servers and internal VCenter and VM's so i get max speed with Vmotions etc. and run the cloud nodes on ESX5 with IB_ISCSI until Mellanox and VMWare come up with a SrP driver for esxi 5 any thoughts or comments would be usefull. Cheers Bruce McKenzie
