Oracle Solaris 11 - Storage

Privileged users have the ability to access and view the changes that have taken place at the file and directory level between snapshots. This includes being able to see if any files or directories have been added, removed, modified, or renamed in a later snapshot. Therefore, the statement is true.

The correct answer is "zfs snap". In Oracle Solaris 11, the "zfs snap" command line option has been added to allow administrators to take a ZFS snapshot. This command is used to create a point-in-time copy of a ZFS file system or volume, which can be used for various purposes such as data backup, system recovery, or testing.

ZFS (Zettabyte File System) is the root file system on Oracle Solaris 11. ZFS is a combined file system and logical volume manager that provides features such as data integrity, snapshots, and dynamic storage allocation. It offers advanced capabilities for managing storage resources and is designed to be highly scalable and efficient. ZFS allows for easy administration and provides a reliable and flexible solution for managing the root file system on Oracle Solaris 11.

CIFS stands for Common Internet File System. This is a network file-sharing protocol that allows users to access files and folders on remote computers. It is commonly used in Windows operating systems for sharing files and printers over a network.

Yes, Microsoft ACLs are supported in ZFS. ZFS, or the Zettabyte File System, is a combined file system and logical volume manager designed by Sun Microsystems. It is known for its advanced features and capabilities, one of which is the support for Microsoft Access Control Lists (ACLs). ACLs are used to define permissions and access rights for files and directories in a Microsoft Windows environment. With ZFS, users can take advantage of these ACLs to manage access control and security in their ZFS file systems.

SMB (Server Message Block) is also known as CIFS (Common Internet File System) and is the standard protocol used for Microsoft file sharing services. It allows for the sharing of files, printers, and other resources between computers on a network.

ZFS eliminates the concept of volumes and the associated problems of partitions. Instead of dividing storage into separate partitions, ZFS uses a pooled storage model where all available storage is combined into a single pool. This allows for more efficient use of storage space and eliminates the need to manage multiple partitions. Additionally, ZFS provides advanced features such as data redundancy, data integrity checks, and dynamic resizing, making it a robust and flexible file system.

Deduplication is a support feature added to Oracle Solaris 11 to reduce the amount of total data stored by eliminating and sharing common components. This means that if multiple files or data blocks have the same content, only one copy of the data will be stored, reducing storage space requirements. Deduplication achieves this by identifying duplicate data and replacing it with references to a single copy, resulting in significant storage savings.

Shadow migration is the correct answer because it is a new tool that has been incorporated in Oracle Solaris 11 for migrating data from an existing file system to a new file system. This tool allows for a seamless and efficient transfer of data, ensuring that all files and configurations are properly migrated without any loss or disruption. It is specifically designed for the purpose of data migration in Oracle Solaris 11.

An NFS server will have the ability to quiesce the file system against changes, save in-memory state on the source, restore the state on the destination, and inform the client of the move. The term "quiesce" refers to temporarily pausing or freezing the activity of a system or component to ensure that it is in a consistent state before performing a specific operation. In the context of an NFS server, quiescing the file system allows for a controlled and synchronized migration or movement of the file system without any data loss or corruption.

The correct answer is "-o mountpoint=value". This option allows the zfs mount command to temporarily mount a file system at a location other than its persistent mount point. By specifying the desired mount point using the "mountpoint" option, the file system can be mounted at that location for the duration of the command execution.

In Oracle Solaris 11, support for encrypted datasets has been added to protect against theft of physical storage. This means that the data stored in the dataset is encrypted, making it unreadable and unusable without the proper encryption key. This provides an additional layer of security to prevent unauthorized access to the data in case of theft or physical compromise of the storage device.

The use of the "NFS Version 4 protocol" is to define the way a client and a server are to handle file system migration. This means that it provides a standardized method for transferring file systems between different machines or servers, ensuring that the process is efficient and reliable.

The correct answer suggests that the use of CISF in Oracle Solaris 11 is to provide file sharing and MS-RPC administration services required for Windows-like behavior for interoperability with CIFS clients. This means that CISF allows users to share files and administer MS-RPC services in a way that is compatible with Windows systems and CIFS clients.

The correct answer is "Helps developers to observe a wide range of SMB operations, before and after requests are executed." This means that the DTrace provider, smb in Oracle Solaris 11 allows developers to monitor and analyze various SMB (Server Message Block) operations, both before and after they are executed. This can help in troubleshooting and optimizing the performance of SMB connections and requests.

The given statement is false. Blocks are not check-summed in order to prevent silent data corruption in Mirror/RAID configurations. In ZFS, check-summing is done at the file system level, not the block level. ZFS uses checksums to detect and repair data corruption, regardless of the storage configuration. The statement incorrectly suggests that the check-summing is done at the block level and is specific to Mirror/RAID configurations, which is not the case.

The given statement is false. The iSCSI DTrace provider allows administrators to trace iSCSI target activity from the server's perspective, not the client's perspective.