ASMLib is a library for the Automatic Storage Management feature of the Oracle Database. ASMLib v3 takes advantage of the io_uring features included in the kernel to deliver high performance. UEK 8 is tested and fully supported with Oracle ASMLib v3.

Note that with this update, the oracleasm kernel module is no longer included, as Oracle ASMLib v3 no longer requires this module to work.

ASMLIB release 3.1 leverages the protection information passthrough enhancements added to io_uring in UEK 8. Through this interface CRC checksums can be attached to each I/O, providing an additional layer of protection against data corruption.

To use this feature, ASM disks must be provisioned on storage hardware which implements T10 Protection Information (SCSI controller with DIX support or NVMe).

See Oracle Linux: Installing and Configuring Oracle ASMLIB v3.