Achieve Success in the Oracle 1z0-820 Exam: A Detailed Upgrade to Oracle Solaris 11 System Administrator Guide

 In this Solaris release, you can use the zpool split command to split a mirrored storage pool, which detaches a disk or disks in the original mirrored pool to create another identical pool.

After the split operation, import the new pool.

You can use the zfs send command to send a copy of a snapshot stream and receive the snapshot stream in another pool on the same system or in another pool on a different system that is used to store backup data.

You can send incremental data by using the zfs send -i option. 

For example:

host1# zfs send -i tank/dana@snap1 tank/dana@snap2 | zfs recv newtank/dana

Note that the first argument (snap1) is the earlier snapshot and the second argument (snap2) is the later snapshot. In this case, the newtank/dana file system must already exist for the incremental receive to be successful.

The incremental snap1 source can be specified as the last component of the snapshot name. This shortcut means you only have to specify the name after the @ sign for snap1, which is assumed to be from the same file system as snap2. For example:

host1# zfs send -i snap1 tank/dana@snap2 > zfs recv newtank/dana

This shortcut syntax is equivalent to the incremental syntax in the preceding example.

zonep2vchk

- check a global zone's configuration for physical to virtual migration into non-global zone

The zonep2vchk utility is used to evaluate a global zone's configuration before the process of physical-to-virtual (p2v) migration into a non-global zone.

The p2v process involves archiving a global zone (source), and then installing a non-global zone (target) using that archive

zonep2vchk serves two functions. First, it can be used to report issues on the source which might prevent a successful p2v migration. Second, it can output a template zonecfg, which can be used to assist in configuring the non-global zone target.

zonep2vchk can be executed on a Solaris 10 or later global zone. To execute on Solaris 10, copy the zonep2vchkutility to the Solaris 10 source global zone.

When run on Solaris 10, a target release of S11 can be specified, which will check for p2v into a Solaris 10 Branded zone.

We destroy both pools. Then we recreate the mirror.

Note:

zpool attach [-f] pool device new_device

Attaches new_device to an existing zpool device. The existing device cannot be part of a raidz configuration. If device is not currently part of a mirrored configuration, device automatically transforms into a two-way mirror of device and new_device. If device is part of a two-way mirror, attaching new_device creates a three-way mirror, and so on. In either case, new_device begins to resilver immediately.

D: According to line /etc/security

F: According to line /export/home

Not E: According to line IGNORE dirmtime

Note: In default mode, the bart compare command, as shown in the following example, checks all the files installed on the system, with the exception of modified directory timestamps (dirmtime):

CHECK all

IGNORE dirmtime

Note 2: The Basic Audit Reporting Tool (BART) feature of Oracle Solaris enables you to comprehensively validate systems by performing file-level checks of a system over time. By creating BART manifests, you can easily and reliably gather information about the components of the software stack that is installed on deployed systems.

BART is a useful tool for integrity management on one system or on a network of systems.

Etherstubs are pseudo ethernet NICs which are managed by the system administrator. You can create VNICs over etherstubs instead of over physical links. VNICs over an etherstub become independent of the physical NICs in the system. With etherstubs, you can construct a private virtual network that is isolated both from the other virtual networks in the system and from the external network. For example, you want to create a network environment whose access is limited only to your company developers than to the network at large. Etherstubs can be used to create such an environment.

Note: Oracle Solaris 11 introduces a new and powerful network stack architecture which includes:

* Networking virtualization with virtual network interface cards (VNICs) and virtual switching (etherstubs)

* Tight integration with zones

* Network resource management - efficient and easy to manage integrated quality of service (QoS) to enforce bandwidth limit on VNICs and traffic flows

We will be examini

Decompress using savecore -f vmdump.0

savecore - save a crash dump of the operating system

-f dumpfile Attempt to save a crash dump from the speci-

fied file instead of from the system's

current dump device. This option may be use-

ful if the information stored on the dump

device has been copied to an on-disk file by

means of the dd(1M) command.

The dispadmin command displays or changes process scheduler parameters while the system is running.

-c class

Specifies the class whose parameters are to be displayed or changed. Valid class values are: RT for the real-time class, TS for the time-sharing class, IA for the inter-active class, FSS for the fair-share class, and FX for the fixed-priority class. The time-sharing and inter-active classes share the same scheduler, so changes to the scheduling parameters of one will change those of the other.

-g

Gets the parameters for the specified class and writes them to the standard output.