做ASM需要的條件

Preparing Disks for ASM
You can create an ASM disk group using one of the following storage resources:
■ Raw disk partition—A raw partition can be the entire disk drive or a section of a
disk drive. However, the ASM disk cannot be in a partition that includes the
partition table because the partition table can be overwritten.
裸設備
■ Logical unit numbers (LUNs)—Using hardware RAID functionality to create
LUNs is a recommended approach. Storage hardware RAID 0+1 or RAID5, and
other RAID configurations, can be provided to ASM as ASM disks.
邏輯單元
■ Raw logical volumes (LVM)—LVMs are supported in less complicated
configurations where an LVM is mapped to a LUN, or an LVM uses disks or raw
partitions. LVM configurations are not recommended by Oracle because they
create a duplication of functionality. Oracle also does not recommended using
LVMs for mirroring because ASM already provides mirroring.
卷
■ NFS files—ASM supports NFS files as ASM disks. Oracle Database has built-in
support for the network file system (NFS) and does not depend on OS support for
NFS. Although NFS and ASM have overlapping functionality, ASM can load
balance or mirror across NFS files.
NFS

看來上次用linux的 LVM歪打正著了:)