At 19:02 08.01.2003, Wolfe, Gordon W wrote: >Cross-posted to the VMESA-L and Linux-VM-L. Sorry for the duplicates. > >Has anyone done anything with Storage Area Network (SAN) devices on VM and/or Linux? >We have a potential new application for Linux on VM that could need Terabytes of data >storage, but we don't have that much free DASD storage left on VM. Money is >incredibly tight this year and we won't be buying any new DASD devices. We do have >an EMC SAN device that could fill the bill if we can get ESCON connectivity to it. > >How do these connect up? Do they look like DASD volumes - 3390 or FBA? Basically, >how do I gen one in the IOCDS to VM so Linux can use it?
Though you didn't mention which EMC device, I'll assume it's comparable to the IBM Shark or the HDS Lightning. The device appears as one or more 3990 controlunits to VM. Usually you define the raid behind as 3390-3, 3390-9 or as custom sized 3390 (up to 32700 cylinders). They can be either FICON or Escon attached. If you have more than one virtual 3990 LCU in your storage box (likely), you just use the CUADD parameter in IOCP to differentiate between them, the rest is like any other 3990. /Herbert
