Difference between AIX, VIO, HMC Versions

Differences

Enhancement in 6.1

• In AIX 6.1 ability to create snapshots within the source FS. It’s 2 types: External and Internal. Create snapshot using snapshot –o command. Snapshots will be stored in /fsmountpoint/.snapshot/snap01
• Encrypted FS: It provides more protection for sensitive data. Commands efsmgr, efskeymgr
• WPAR technology
• Hardware performance monitors: PM and HPM
• NIMSH(service handler) was introduced.
• /admin/tmp : On this directory privileged processes can securely create temporary files.
• AIX graphical installer

Enhancement in AIX 5.3

• Scalable VG introduced
• It supports P5 HW features(Micro Partitioning, Vscsi, Virtual Ethernet, Shared Ethernet, SEA, IVM)
• New performance commands like lparstat, mpstat, topas enhanced for micro partitions
• Concurrent IO implemented
• NFSv4(replication features, it supports for DIO,CIO supported
• Login license limit has increased 32767
• Ps –f , find, alt_disk_mksysb, alt_rootvg_op, alt_disk_copy
• Chcore, lscore

Enhancement in 5.4

• web based GUI
• NFSv4 support environments
• New GLVM monitoring

Enhancement in 5.3

• Additional resource and resource group management features(cluster wide RG location dependencies, Distribution preference for IP service aliases
• Clone a cluster from existing live configuration
• OEM VG’s and FS has been added to VFS and VVm
• Performance and usability has been improved
• New smart assist features

Enhancement in VIO 2.1

• N_Port ID Virtualization ( Simplifies FC San LUN administration, Enables access to other SAN devices like tape)
• Virtual Tape (it simplifies backup & restore with shared devices)
• Dynamic heterogeneous MPIO
• Partition mobility between HMC
• Active memory sharing( like shared cpu but for memory)
• PowerVM Lx86 1.3( New higher performance)

Enhancement in HMC 7

• It supports new power6 technology features
• Websm is no longer required. Standard web browser is enough