How to Create a Virtual Network Interface

This procedure shows how to create a virtual network interface card (VNIC).

1. Create a VNIC over a datalink.

# dladm create-vnic -l link vnic

link is the name of the datalink over which the VNIC is configured.

vnic is the VNIC which you can label with a customized name as well.

2. Create a VNIC IP interface over the link.

# ipadm create-ip vnic

3. Configure the VNIC with a valid IP address.

If you are assigning a static IP address, use the following syntax:

# ipadm create-addr -T static -a address addrobj

where addrobj uses the naming format interface/user-defined-string, such as e1000g0/v4globalz.

To c reate a file system with deduplication:

root@solaris:~# zfs create -o dedup=on

Note: If you have a storage pool named ' tank ' and you want to use dedup, just type this:

zfs set dedup=on tank

A:

Note:

Use dladm show-phys to obtain information about the system ' s datalinks in relation to the physical NICs with which they are associated. Used without any options, the command displays information similar to the following:

# dladm show-phys

LINK MEDIA STATE SPEED DUPLEX DEVICE

net0 Ethernet up 100Mb full e1000g0

net1 Ethernet down 0Mb -- nge0

net2 Ethernet up 100Mb full bge0

net3 Infiniband -- 0Mb -- ibd0

* Your link aggregation configuration is bound by the following requirements:

/You must use the dladm command to configure aggregations.

/ (not B) An interface that has been created cannot become a member of an aggregation.

/All interfaces in the aggregation must run at the same speed and in full-duplex mode.

/ (not E) You must set the value for MAC addresses to “true” in the EEPROM parameter local-mac-address? For instructions, refer to How to Ensure That the MAC Address of an Interface Is Unique.

Not on compression setting:

compression=on | off | lzjb | gzip | gzip-N

Controls the compression algorithm used for this dataset. The

" lzjb " compression algorithm is optimized for performance while

providing decent data compression. Setting compression to " on " uses

the " lzjb " compression algorithm.

Incorrect:

Not A, Not E: Should not use commas like this.

Not B, Not D: There is no property algorithm named to this command. To specify the use of the lzjb compression command we must use compression=lzjb.

* The netcfg command manipulates system network configuration profiles. The netcfg command can be invoked interactively, with an individual subcommand, or by specifying a command file that contains a series of subcommands.

* subcommand: netcfg commit

Commits the current profile specification to persistent storage. A configuration must be correct to be committed. Therefore, this operation automatically performs a verify operation on the profile or object as well. The commit operation is attempted automatically upon exiting the current scope by using either the end or exit subcommand.

Note:

* from the netadm list output we see the line

ncp Automatic disabled

* Oracle Solaris 11 uses profile-based network configuration, which is comprised of two network configuration modes: manual (fixed) and automatic (reactive). Depending on which network configuration mode you choose during an installation, either the DefaultFixed network configuration profile (NCP) or the Automatic NCP is activated on the system. If the DefaultFixed NCP is active, the network is manually configured by using the dladm and ipadm commands . If the Automatic NCP or a user-defined NCP that you previously created is active, the netcfg and netadm commands (formerly nwamcfg and nwamadm) are used to create and manage network configuration.

The following list provides a brief description of each default checkpoint in the order the checkpoints are executed in most manifests.

transfer-ips-install – At this checkpoint, the distribution constructor contacts the IPS publishers and adds to the image the packages that are listed in the software_data element of the manifest.

set-ips-attributes – At this checkpoint, the constructor sets the publisher to be used by the installed system. The values set by this checkpoint are not relevant if you are building an automated installation image.

pre-pkg-img-mod – At this checkpoint, the constructor imports into the image the SMF service files that were specified in the configuration element of the manifest. Also, the constructor modifies some files to optimize the image.

create uses a default template of SYSdefault. The default template can be changed on a system-wide basis using the default_template SMF property of the svc:/system/zones:default service.

Note:

create [-F] [ -a path |-b | -t template]

Create an in-memory configuration for the specified zone. Use create to begin to configure a new zone

Note:

You might want a local IPS repository for the following reasons:

Performance and security. You do not want your client systems to go to the Internet to retrieve new software packages or update existing packages.

Replication. You want to ensure that you can perform the same installation next year that you perform today.

Custom packages. You want to include your own IPS package in the same repository with Oracle Solaris OS packages.

Note:

* (not A, not B, not D) The privs key contains a comma-separated list of privilege numbers that will be effective when the command or action is run.

* euid and uid contain a single user name or a numeric user ID. Commands designated with euid run with the effective UID indicated, which is similar to setting the setuid bit on an executable file. Commands designated with uid run with both the real and effective UIDs. Setting uid may be more appropriate than setting the euid on privileged shell scripts.

* egid and gid contain a single group name or a numeric group ID. Commands designated with egid run with the effective GID indicated, which is similar to setting the setgid bit on a file. Commands designated with gid run with both the real and effective GIDs. Setting gid may be more appropriate than setting guid on privileged shell scripts.

* /etc/security/exec_attr is a local database that specifies the execution attributes associated with profiles.

/etc/security/exec_attr

Locally added entries. Make sure that the shipped header remains intact.

/etc/security/exec_attr.d/*

Entries added by package installation.

The FX scheduler provides a scheduling policy for processes that require user or application control of scheduling priorities. The priorities of processes that run under FX are fixed.

The FX class provides a fixed-priority preemptive scheduling policy. This policy is used by processes that require user or application control of scheduling priorities but are not dynamically adjusted by the system. By default, the FX class has the same priority range as the TS, IA, and FSS classes. The FX class allows user or application control of scheduling priorities through user priority values assigned to processes within the class. These user priority values determine the scheduling priority of a fixed-priority process relative to other processes within its class.

Incorrect:

Not A: The fair share scheduling class enables you to allocate CPU time based on shares instead of the priority scheme of the timesharing (TS) scheduling class.

Not D: The goal of the time-sharing policy is to provide good response time to interactive processes and good throughput to CPU-bound processes. The scheduler switches CPU allocation often enough to provide good response time, but not so often that the system spends too much time on switching. Time slices are typically a few hundred milliseconds.

The time-sharing policy changes priorities dynamically and assigns time slices of different lengths.