What is Vio in AIX?

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What is Vio in AIX?

Virtual I/O (VIO) server is a virtualization technology by IBM. A Virtual I/O server is a logical partition (LPAR) that runs a trimmed-down version of the AIX operating system. Virtual I/O servers have APV support, which allows sharing of physical I/O resources between virtual I/O clients.

What is IBM AIX LPAR?

AIX logical partition virtual machine technology is released by IBM with AIX as a full virtualization solution. The deployment may include partitions with virtual CPUs or partitions that support DLPAR events. IBM LPARs with Virtual I/O Servers. With Virtual I/O Servers LPARs can share physical resources.

How do I map a disk from VIO to LPAR?

How to mapping a disk from vio server to lpar in aix?

  1. Find out the slot number of the vscsi.
  2. Find out the VIO server associated with the lpar using HMC.
  3. Find out the vhost assigned for the lpar.
  4. Find out the free disk /unassigned disk on the vios which needs to be mapped.
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What is called VIO server?

VIO: VIO is a Virtual I/O server which can be used to Virtualize resources on a Physical POWER Machine. VIO server supports creation of Virtual Networks, Virtual SCSI(disks/storage), NPIV(Again Storage) etc.

How do I find my VIO version?

The first step is to check your current level on the VIO server. Login as padmin and type in ioslevel. It will show something like 2.2. 2.2, 2.2.

What is IBM mainframe LPAR?

An LPAR is a subset of the processor hardware that is defined to support an operating system. An LPAR contains resources (processors, memory, and input/output devices) and operates as an independent system. Multiple logical partitions can exist within a mainframe hardware system.

What does LPAR mean in mainframe?

Logical partitions
Mainframe concepts. Logical partitions (LPARs) are, in practice, equivalent to separate mainframes. Each LPAR runs its own operating system.

How can I check my VIO LPAR details?

How to find out the vio server details from vio client on AIX 5.3…

  1. Simply executing the kdb command on the aix prompt. # kdb.
  2. Load the cvscsi autoload function (note: this function is already loaded by default on AIX 6.1 systems.) 0> cvscsi.
  3. Then we can check the vscsi adapter details, using the cvai function:
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What is SCSI in AIX?

Virtual SCSI is based on a client/server relationship. The Virtual I/O Server owns the physical resources and acts as server or, in SCSI terms, target device. The client logical partitions access the virtual SCSI backing storage devices provided by the Virtual I/O Server as clients.

What is the difference between an LPAR and a Vio server?

VIO is a Virtual I/O server which can be used to Virtualize resources on a Physical POWER Machine. VIO server supports creation of Virtual Networks, Virtual SCSI (disks/storage), NPIV (Again Storage) etc. LPAR’s are Logical Partitions created using the resources allocated from VIO servers.

What is an Aix Vio server?

VIO Server = Its is customized AIX box and we treat them to virtualize the physical resources (Hardware) to assign them to multiple LPARS. All physical resources are assigned to VIO servers and with the help on HMC we virtualize the physical resources and assign them to different AIX servers (LPARS) into FRAME.

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What is a Vios partition?

VIOS can be defined as special logical partitions that host I/O resources in order to provide advanced virtualization capabilities across other client logical partitions (LPARs). Virtual I/O Server (VIOS) has been around since 2004 and was initially available on IBM POWER5 servers running AIX and Linux workloads.

How do I assign a disk to a Vio client LPAR?

This method requires assigning a disk to a VIO server and using the padmin user ID to create a volume group and logical volumes (LVs) on that disk. Then, you map those LVs to VIO client LPARs for use, seeing them as individual disks.