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Jason Arneil Solutions Architect. What’s New with 12c ASM . Agenda. Consolidation. jarneil.wordpress.com. @ jarneil. Customers. ASM. ASM – A recap. ASM Protection. Extents & Redundancy. Agenda. Whats New?. Disk Management. Physical Metadata Replication. Improved Availability.
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Jason ArneilSolutions Architect What’s New with 12c ASM
Agenda Consolidation
jarneil.wordpress.com @jarneil
Agenda Whats New?
Disk Management Physical Metadata Replication Improved Availability
Disk Management Concurrent Rebalance Improved Availability
Disk Management File Priority Rebalance Improved Availability
Disk Management Disk Scrubbing Improved Availability
Disk Management Fast Disk Resync Checkpoints Improved availability
Disk Management Failure Group Repair Timer Improved availability
I/O Performance Even Read Improved Performance
Scalability Increased Number of Diskgroups Improved Scalability
Estimating Explain Work Improved Manageability
Password Files Password Files in ASM Improved Manageability
Flex ASM • Current scenario… Node1 Database Instance ASM Instance Node2 Node3 Node4 Node5 One to One Mapping of ASM Instances to Servers ASM Cluster Pool of Storage Shared Disk Groups Wide File Striping Disk Group A Disk Group B ASM Disk
Flex ASM • With Flex ASM Node5 Node3 Node4 Node1 Node2 Node5 Database Instance Databases share ASM instances ASM Instance Node2 runs as ASM Client to Node3 Node1 runs as ASM Client to Node4 Node1 runs as ASM Client to Node2 Node5 runs as ASM Client to Node4 ASM Cluster Pool of Storage Shared Disk Groups Wide File Striping ASM Disk Disk Group A Disk Group B
Flex ASM 3
Flex ASM Classic Mode Mixed Mode 12c Mode