Files on Shared Disk Arrays

SAP Sybase IQ multiplex functionality requires using the same file paths to access files in dbspaces in the shared stores from all nodes.

All files in all dbspaces in the shared store, namely all files in IQ_SYSTEM_MAIN and shared dbspaces, must be accessible in exactly the same way from all nodes. Files in the shared temporary store should be accessible from all nodes in the multiplex.

For IQ_SYSTEM_TEMP and IQ_SYSTEM_MSG, independent files are maintained for each node. The paths for these files must be accessible on the node that owns them.

• UNIX or Linux Shared Array Path Definitions
  On UNIX or Linux, access shared disks through absolute paths or soft links, as shown in these examples.
• Windows Shared Disk Array Path Definitions
  On Windows, access shared disks through absolute paths or the Disk Physical number, as shown in these examples.