FastNote: AIX 7 újdonságok

The mkvg command accepts an additional flag, -X, to indicate that a new VG must
reside on a specific type of disk. This effectively restricts the VG to this type of
disk while the restriction exists. The following list describes the options to the -X
flag.
-X none This is the default setting. This does not enforce any restriction.
Volume group creation can use any disk type.
-X SSD At the time of creation, the volume group is restricted to SSD
devices only.

Important: Once a PV restriction is turned on, the VG can no longer be
imported on a version of AIX that does not support PV type restrictions.

The chvg command accepts an additional flag, -X, to set or change the device
type restriction on a VG. The following list describes the options available.
-X none Removes any PV type restriction on a VG.
-X SSD Places a PV type restriction on the VG if all the underlying disks
are of type SSD. An error message is displayed if one or more of
the existing PVs in the VG do not meet the restriction.[/code]

CSM

Starting with AIX 6.1 TL3 a new package is shipped with the base media called 
Distributed System Management (DSM). In AIX 7.1 this new DSM package 
replaces the Cluster Systems Management package (CSM), which is no longer 
available on AIX 7.1. Commands such as dcp and dsh are not available on AIX 
7.1 without installing the DSM package, which is not installed by default but is on 
the base installation media. The DSM package is in the filesets dsm.core and 
dsm.dsh. 

# Ennek mondjuk személy szerint nem örülök.. => Ahogy nézem a perl környezetet egy java környezet fogja leváltani :(

Device Renaming

Devices can be renamed in AIX 6.1 TL6 and 7.1 with the rendev command. One 
of the use cases would be to rename a group of disks on which application data 
may reside, to be able to distinguish them from other disks on the system.
Once the device is renamed using rendev, the device entry under /dev/ 
corresponding to the old name will go away. A new entry under /dev/ will be seen 
corresponding to the new name. Applications should refer to the device using the 
new name.

WebSM

The Web-based System Manager is no longer supported in AIX V7.1 and later releases.

Hotfile detection

An enhancement to the filemon command allows for the detection of hot files in
a file system. The introduction of flash storage or Solid-State Disk (SSD) has 
necessitated the need for a method to determine the most active files in a file 
system. These files can then be located on or relocated to the fastest storage 
available. The enhancement is available in AIX V7.1, AIX V6.1 with Technology 
Level 4 and AIX V5.3 with Technology Level 11.
For a file to be considered \u201chot\u201d it must be one that is read from, or written to 
frequently, or read from, or written to in large chunks of data. The filemon 
command can assist in determining which files are hot, and produces a report 
highlighting which files are the best candidates for SSD storage.

Szerk: Kicsit átszabtam a topic címét, és némileg a tartalmat is, mert ahogy nézem kerülhet még bele más is ahogy haladok az újdonságok olvasgatásával
update1: CSM
update2: rendev
update3: WebSM
update4: Hotfile detection