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With regard to the preceding diagram, which two statements are correct about the connection between two ZFS storage cluster pairs?
SunOS STREAMS-based device drivers wishing to support the STREAMS TCP/IP and other STREAMS-based networking protocol suite implementations support Version 2 of the Data Link Provider Interface (DLPI). DLPI V2 enables a data link service user to access and use any of a variety of conforming data link service providers without special knowledge of the provider's protocol. Specifically, the interface is intended to support Ethernet, X.25 LAPB, SDLC, ISDN LAPD, CSMA/CD, FDDI, token ring, token bus, Bisync, and other datalink-level protocols.
Note: The UART interface provides methods for controlling and accessing a UART (Universal Asynchronous Receiver/Transmitter).
References:
https://docs.oracle.com/cd/E19253-01/816-5177/dlpi-7p/index.html
Which two actions make a statistic into an archived data set?
B: Action: Archive
Sets the statistic to be permanently opened and archived to disk. If the statistic had already been opened, then all cached data in memory is also archived to disk. Archiving statistics creates permanent datasets, visible in the Datasets view (those with a non-zero 'on disk' value). This is how statistics may be recorded 24x7, so that activity from days, weeks and months in the past can be viewed after the fact.
Note: The term dataset refers to the in memory cached and on disk saved data for a statistic, and is presented as an entity in Analytics with administration controls.
Datasets are automatically created whenever you view statistics in Open Worksheets. A dataset is not saved to disk for future viewing unless you archive it.
References:
https://docs.oracle.com/cd/E27998_01/html/E48490/analytics__concepts.html#scrolltoc
Which two features are available when ZFS Storage Appliances are clusters?
As an alternative to incurring hours or days of downtime while the head is repaired, clustering allows a peer appliance to provide service while repair or replacement is performed.
Clusters support rolling upgrade of software, which can reduce the business disruption associated with migrating to newer software.
Which four factors must you consider for implementing remote data replication between two ZFS Storage Appliances?
C: The remote replication is Asynchronous. Because replication takes snapshots and then sends them, data is necessarily committed to stable storage before replication even begins sending it. Continuous replication effectively sends continuous streams of filesystem changes, but it's still asynchronous with respect to NAS and SAN clients.
References:
https://docs.oracle.com/cd/E37831_01/html/E52872/gocuj.html
Which three actions are performed to maintain data availability?
C: The majority of new features and bug fixes introduced in a system update are backwards-compatible and allow you to roll back to previous updates without issue. These are applied automatically by the storage management software.
D: The configuration backup function enables the administrator to backup the appliance configuration, consisting of system metadata only (such as the network configuration, local users and roles, service settings, and other appliance metadata).
F: To maximize the availability of your data in production, the ZFSSA includes a complete end to-end architecture for data integrity, including redundancies at every level of the stack. Key features include the following:
