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4k sector size

4k sector size and Grid Infrastructure 11.2 installation gotcha

Some days are just too good to be true :) I ran into an interesting problem trying to install 11.2.0.3.0 Grid Infrastructure for a two node cluster. The storage was presented via iSCSI which turned out to be a blessing and inspiration for this blog post. So far I haven’t found out yet how to create “shareable” LUNs in KVM the same way I did successfully with Xen. I wouldn’t recommend general purpose iSCSI for anything besides lab setups though. If you want network based storage, go and use 10GBit/s Ethernet and either use FCoE or (direct) NFS.

Here is my setup. Storage is presented in 3 targets using tgtd on the host: