72 lines
4.7 KiB
HTML
72 lines
4.7 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html
|
|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html lang="en-us" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="security" content="public" />
|
|
<meta name="Robots" content="index,follow" />
|
|
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
|
|
<meta name="DC.Type" content="topic" />
|
|
<meta name="DC.Title" content="Virtual I/O in a logical partition running Linux" />
|
|
<meta name="abstract" content="Virtual I/O resources are devices owned by the hosting i5/OS partition that provides I/O function to the logical partition." />
|
|
<meta name="description" content="Virtual I/O resources are devices owned by the hosting i5/OS partition that provides I/O function to the logical partition." />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="DC.Format" content="XHTML" />
|
|
<meta name="DC.Identifier" content="rzalmvirtualio" />
|
|
<meta name="DC.Language" content="en-us" />
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
|
<!-- US Government Users Restricted Rights -->
|
|
<!-- Use, duplication or disclosure restricted by -->
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
|
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
|
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
|
<title>Virtual I/O in a logical partition running Linux</title>
|
|
</head>
|
|
<body id="rzalmvirtualio"><a name="rzalmvirtualio"><!-- --></a>
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
|
<h1 class="topictitle1">Virtual I/O in a logical partition running Linux</h1>
|
|
<div><p>Virtual I/O resources are devices owned by the hosting i5/OS<sup>®</sup> partition
|
|
that provides I/O function to the logical partition.</p>
|
|
<p>The iSeries™ Linux
|
|
kernel and i5/OS support
|
|
several different kinds of virtual I/O resources. They are virtual console,
|
|
virtual disk unit, virtual CD, virtual tape, and virtual Ethernet.</p>
|
|
<blockquote><p><dfn class="term">Virtual console</dfn> provides console function for the logical
|
|
partition through an i5/OS partition. The virtual console can be established
|
|
to the server or to the primary partition. The use of the virtual console
|
|
allows the installation program to communicate with the user prior to networking
|
|
resources being configured. It can also be used for troubleshooting server
|
|
errors.</p>
|
|
<p><dfn class="term">Virtual disk unit</dfn> can only be provided by a server.
|
|
Virtual disk provides access to NWSSTG virtual disks for Linux. By default,
|
|
the CRTNWSSTG command creates a disk environment with one disk partition formatted
|
|
with the FAT16 file system. The Linux installation program will reformat the
|
|
disk for Linux or you can use Linux commands such as fdisk and mke2fs to format
|
|
the disk for Linux.</p>
|
|
<p><dfn class="term">Virtual CD</dfn> is needed to support the
|
|
installation of Linux and is only provided by a server. By default, a Linux
|
|
partition can see all CD drives on the logical partition. You can change an
|
|
option on the NWSD to restrict Linux from accessing some or all of those drives.
|
|
See <a href="rzalmnwsd.htm">Create a network server description and a network server storage space</a> for more information on
|
|
changing NWSD attributes.</p>
|
|
<p><dfn class="term">Virtual tape</dfn> provides access
|
|
to the i5/OS tape
|
|
drives from a logical partition. By default, a logical partition can see all
|
|
tape drives on the hosted partition. You can change an option on the NWSD
|
|
to restrict Linux from accessing some or all of those drives. See <a href="rzalmnwsd.htm">Create a network server description and a network server storage space</a> for more information on changing NWSD attributes.</p>
|
|
<p><dfn class="term">Virtual
|
|
Ethernet</dfn> provides the same function as using a 1 Gigabyte (GB) Ethernet
|
|
adapter. A logical partition can use virtual Ethernet to establish multiple
|
|
high speed inter-partition connections. i5/OS and Linux partitions
|
|
can communicate with each other using TCP/IP over the virtual Ethernet communication
|
|
ports. Refer to <a href="rzalmvirtuallan.htm">Use virtual Ethernet in a logical partition</a> for
|
|
more information on virtual Ethernet.</p>
|
|
</blockquote>
|
|
<p>For additional information about how your company might use logical partition
|
|
with virtual I/O resources, see <a href="../rzait/rzaitscenarios.htm">Logical and guest partition scenarios</a>.</p>
|
|
</div>
|
|
|
|
</body>
|
|
</html> |