How to make sure Oracle ASM devices pointing to multipath devices and not scsi paths, sd devices when using ASMLib to manage ASM disks?
Issue
- Oracle application crashes when a single path in multipath fails. The application should be unaware of underlying path failures.
- ASM crashed and with that the Oracle DB
- Using Device Mapper Multipathing for Oracle database, and expect Oracle LUNs to see multipath, not sd devices?
- How to make sure Oracle ASM devices pointing to multipath devices and not scsi paths, sd devices when using
ASMLibto manageASMdisks? - I/O's to the SAN are not shared across all the paths of multipath in Oracle application server configured with Oracleasm.
Environment
- Red Hat Enterprise Linux (RHEL) 5, 6, 7, 8
- device-mapper-multipath
- Oracle ASM using ASMLib
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