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Operating Systems AIX AIX Virtualization question for non-AIX user Post 302087989 by dukessd on Thursday 7th of September 2006 08:02:22 PM
Old 09-07-2006
OMG, where to start.

Performance gain over hardware cost - pSeries hardware costs a lot more than the PC stuff you have.
Blades are not power5, so cannot run virtualisation (see below). Given the hardware constraints of a blade it would be pointless.
pSeries virtualisation is not the same as LPAR

LPAR (Logical PARtition) is physical partitioning of a system, so the hardware takes care of the resources that make up the partition and then you just install AIX or Linux to the partitions you have devided the hardware in to.

Say you have 2 processors, 2 disks and 2 ethernet adapters - you can have 2 LPARS each with one of each resource. So you have 2 fully functional instances of AIX running on the same machine, without the VM bloatware running underneath.
If you have 64 processors, 1000 disks, 50 network adapters.... think of the possibilities...

The virtualisaton bit is a means of configuring lots of the system to one LPAR then running AIX VIO (virtual I/O) on thet LPAR which then allows you to share those (I/O) resources among other LPARS, either in whole or in part. For example an ethernet adapter shared from a VIO LPAR can be used by several other LPARS.

You can also use DLPAR (Dynamic LPAR) to move resources between active LPARs - cool huh?

With micropartitioning you can devide a CPU into 100 and so configure a LPAR with as many percent of a processor as you think fit - even cooler!

Oh, and you'll also need an HMC for LPAR, DLPAR, VIO. An HMC (hardware management console) is a PC running a dedicated release of some form of Linux thats whole purpose in life is to manage the hardware configuration of the pSeries machine.

So not anything like VM but you can achieve a similar effect - you could just buy into x86 blades and continue with the VM / Linux thing and maybe reduce the footprint but the cost of hardware is questionable against the xSeries machines.

You need power4 hardware (and an HMC) for LPAR / DLPAR and power5 hardware (and an HMC) for LPAR / DLPAR and VIO, so even a 270 will not cut it. You'll need a power4 (p6xx) or a power5 (p5xx) machine if you want to have a play - some p6xx machines like the p620, p660, p680 and maybe others don't have power4 technology so take care, aim for one with an odd second character to be safe: p610, p630, p650, p690 and don't forget the HMC.
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aserver(1M)															       aserver(1M)

NAME
Aserver - start the audio server SYNOPSIS
DESCRIPTION
The command starts the HP-UX Audio server, which can run on a system with audio hardware. See Audio(5) for information about which systems have audio hardware. The option forces the starting of the Audio server; this option is only needed if the Aserver has problems starting. The Audio Server Before using any audio tools such as the the system or X station must be running two audio server processes, called On a Series 700, the Remote Procedure Call daemon must also be running. Normally, the Aserver processes and start automatically when the system is booted. If problems occur on an ENTRIA or ENVIZEX X station, see the X station owner's manual. On a Series 700 Audio hardware, first check if is running. Type the following: If it is running, you see a line similar to the following. If it is not running, see HP 9000/DCE documentation for information on restarting it. If is running, verify that the Aserver is running. Type: If the Aserver is running you will see lines similar to the following, which indicate the presence of the two Aserver processes: If it is not running, become root and restart it as follows: If it fails to start, reissue the command with the option: Using Audio over the Network From a workstation, you can also use the Audio Editor and Control Panel over the network. However, the remote system is where the actual playback and recording occur. The local workstation (or audio client) can be any Series 700 system. The remote system (or audio server) can be a Series 700 or an X sta- tion with audio hardware and must have the Aserver processes running. If the server is a workstation, it must also allow access from remote clients (see asecure(1M)) and must have running. To make the system an audio client, set the variable by modifying the file as follows: Korn and POSIX Shells: C Shell: For system_name, identify the workstation or X Station running the Aserver. If the variable is not set, the Audio Library attempts to use to the Aserver on the system defined by the variable. If neither nor is set, the Aserver on the local machine is used. DEPENDENCIES
The Audio Server must run on a system that has audio hardware. Note that HP-UX for the 8MB 705 System does not include audio software. AUTHOR
The Audio Server was developed by HP. SEE ALSO
audio(5), asecure(1M), attributes(1), convert(1), send_sound(1). aserver(1M)
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