Oracle Updated 1z0-822 Exam Questions and Answers by lawrence

Required to maintain high availability --> use a mirror.

The same data will be accessed many times throughout the day. Configure the storage for maximum performance. Use caching.

Service Dependency. This element identifies a group of FMRIs upon which the service is in some sense dependent.

ATTRIBUTE: Grouping:

Possible values:

'require_all',

'require_any',

'exclude_all',

‘optional_all'

Note:

* Example 1:

name='network'

grouping='require_all'

restart_on='none'

type='service'>

* In this example, let's choose the svc:/system/zones:default service instance. We can use the -l option and the service name to get more information, as shown in Listing 3.

# svcs -l svc:/system/zones:default

fmri svc:/system/zones:default

name Zones autoboot and graceful shutdown

enabled true

state online

next_state none

state_time June 14, 2012 08:30:31 PM NZST

logfile /var/svc/log/system-zones:default.log

restarter svc:/system/svc/restarter:default

manifest /etc/svc/profile/generic.xml

manifest /lib/svc/manifest/system/zones.xml

manifest /lib/svc/manifest/system/zonestat.xml

dependency require_all/none svc:/milestone/multi-user-server (online)

dependency optional_all/none svc:/system/pools:default (disabled)

dependency optional_all/none svc:/system/pools/dynamic:default (disabled)

dependency optional_all/none svc:/system/zones-monitoring (online)

See 1 below.

Precedence Rules

For nfsmapid to work properly, NFS version 4 clients and servers must have the same domain. To ensure matching NFS version 4 domains, nfsmapid follows these strict precedence rules:

1. The daemon first checks the SMF repository for a value that has been assigned to the nfsmapid_domain parameter. If a value is found, the assigned value takes precedence over any other settings. The assigned value is appended to the outbound attribute strings and is compared against inbound attribute strings.

2. If no value has been assigned to nfsmapid_domain, then the daemon checks for a domain name from a DNS TXT RR. nfsmapid relies on directives in the /etc/resolv.conf file that are used by the set of routines in the resolver. The resolver searches through the configured DNS servers for the _nfsv4idmapdomain TXT RR.

3. If no DNS TXT record is configured to provide a domain name, then the nfsmapid daemon uses the value specified by the domain or search directive in the /etc/resolv.conf file, with the directive specified last taking precedence.

4. If the /etc/resolv.conf file does not exist, nfsmapid obtains the NFS version 4 domain name by following the behavior of the domainname command. Specifically, if the /etc/defaultdomain file exists, nfsmapid uses the contents of that file for the NFS version 4 domain. If the /etc/defaultdomain file does not exist, nfsmapid uses the domain name that is provided by the network's configured naming service.

* /etc/default/mpathd

Contains default values used by the in.mpathd daemon.

* By default, in.mpathd limits failure and repair detection to IP interfaces that are configured as

part of a named IPMP group. Setting TRACK_INTERFACES_ONLY_WITH_GROUPS to no enables failure and repair detection on all IP interfaces, even if they are not part of a named IPMP group. IP interfaces that are tracked but not part of a named IPMP group are considered to be part of the “anonymous” IPMP group. In addition to having no name, this IPMP group is

special in that its IP interfaces are not equivalent and thus cannot take over for one another in

the event of an IP interface failure. That is, the anonymous IPMP group can only be used for

failure and repair detection, and provides no high-availability or load-spreading