The LUN Snapshot Attach to Host operation is being performed with Read/Write Access selected. By default, what does the Dell EMC Unity system do before beginning the attach process?
Which severity level alerts for a fault condition that has occurred, has minor impact on the system, and does not need to be fixed immediately?
Event Severity levels are: critical, error, warning, info.
Refer to the exhibit.
What is a possible reason for the health score of 70 that is associated with the Test_Dev storage pool?
A storage administrator wants to create datastores using VMware VASA APIs and IP networking.
Which type of datastore should be used?
Refer to the exhibit.
Where is the management port located on the Unity Storage Processor?
What are considerations when configuring a Proxy NAS Server?
A storage administrator wants to expand the current FAST Cache size from 1.2 TB to the maximum allowed size on a Dell EMC Unity XT 880.
How many drives, and of what type, do they need to add?
What is the minimum and maximum recovery point objectives (RPO) configurable when using Unity native asynchronous replication?
Recovery Point Objective (RPO) is an industry accepted term that indicates the acceptable amount of data, measured in units of time, that may be lost in a failure. When you set up an asynchronous replication session, you can configure automatic synchronization based on the RPO. You can specify an RPO from a minimum of 5 minutes up to a maximum of 1440 minutes (24 hours).
When the LUN Snapshot Restore operation is performed, what does the Unity system automatically do before beginning the restoration process?
What is an example of a NAS Server replication session grouped operation?
What are characteristics of the LUN Snapshot Copy operation?
The Snapshot Copy operation will make a copy of an existing snapshot that is either attached or detached from a host. The copy will capture the existing data state of the snapshot it copies. In this Copy example, a copy of an existing 4 o clock snapshot is being made. The copy inherits the parent snapshot data state of 4 o clock and its retention policy
What is the default file system quota policy on the Dell EMC Unity XT storage array?
When using quotas, administrators have the option to calculate file system usage in one of two ways. This option, which is configured on a per file system basis, may be set to File Size or Block based calculation. When using the default setting of File Size, disk usage is calculated based on logical file sizes in 1K increments. Because of this, it is possible that used space may be reported from a quota perspective as more than the actual usage if holes exist in a sparse file. This setting is generally recommended for Windows environments. The Block quota policy calculates disk usage in 8-16KB file system blocks, and is accurate with regard to the actual allocation down to the block level. This setting is recommended for UNIX environments.
What is the maximum number of LUN snapshots that are supported by Unity?
Note: Logical Unit Number (LUN) – A block-level storage device that can be accessed using a protocol such as iSCSI.
How is encryption set for a Unity storage system?
A storage administrator is considering adding another application to run on their Unity 300 but they are concerned about the application’s performance. They ask what is considered “normal” for CPU utilization. Based on Dell EMC best practices, what should be your response?
What is a consideration when attempting to downgrade from Integrated ESRS Two-way to ESRS One-way?
Which operation can be performed from the FAST VP settings section in the Unisphere Settings window?
FAST VP accelerates performance of a specific storage pool by automatically moving data within that pool to the appropriate drive technology, based on data access patterns. FAST VP is only applicable to hybrid pools.
FAST VP is most effective if data relocations occur during or immediately after normal daily processing. EMC recommends scheduling FAST VP relocations to occur before backups or nightly batch processing.
A Storage administrator needs to expand their FAST Cache by 400 GB. The current configuration consists of two 400 GB SAS Flash 2 drives.
What can be used to expand the FAST Cache?
While examining the health status of a Dell EMC Unity array, the administrator notices the internal SSD is in a faulted state.
Which condition caused this fault?
Which step must be completed prior to performing the initial configuration of a UnityVSA system and creating the first storage pool?
UNITY VSA STORAGE POOL CREATION
1. Under the Storage Pool Section go to Pools. Select the + to start the “Create Pool Wizard”.
2. Name the Pool
3. Assign a Tier to each Virtual Disk attached to the VSA. You have Extreme, Performance and Capacity.
What is a function of CloudIQ?
A High Endurance SSD is limited to how many writes per day?
After performing the initial configuration of a new UnityVSA, when do alerts concerning license expiration first occur?
A storage administrator wants to configure a Unity system to join the list of arrays remotely monitored for activity and system status using Unisphere Central. The security policy on the Unisphere server was set to “automatic”.
What additional security information must be specified in the Unisphere Settings window to enable communication with Unisphere Central?
Configure the security policy to specify how storage systems are verified when connecting to Unisphere Central. Automatic verification automatically verifies storage systems when they connect to Unisphere Central using a preconfigured security certificate hash and passphrase.
A storage administrator is configuring a storage pool on a Unity system containing Flash disks and SAS disks. What tier will the system assign to each of the disk types?
Hybrid pools can have up to 3 tiers (Extreme Performance, Performance, and Capacity).
For the Extreme Performance tier, use only SAS Flashdrives.
For the Capacity tier, use only SAS drives.
For high availability within iSCSI, connections should be attached using what?
What is a use case for Thin Clones?
An administrator’s Unity system is configured with both a Fibre Channel CNA and a Fibre Channel I/O module. Which Fibre Channel port on each SP must be used for native synchronous replication?
Only one FC port can be configured and used for synchronous replication. Once an FC port is assigned, it will continue to act as the synchronous replication port and can never be changed. To determine the FC port used for synchronous replication, in the CLI console, run the command /remote/sys show -detail. Port information, similar to the following example, will appear in the output:
Synchronous FC ports = spb_fc4, spa_fc4
A storage administrator wants to configure a Unity system to log system events to a remote log server. In order to allow access to the log server, which port should the administrator ensure is not blocked by the firewall?
The storage system supports logging user/audit messages to a remote host. By default, the storage system transfers log information on port 514 using UDP.
What is a characteristic of the iSCSI interface on Dell EMC Unity storage arrays?
With Redirect on Write technology, when writes are made to the storage resource and more space is required, what size is the slice allocated from the parent pool?
How does Dell EMC Unity XT differ from Dell EMC UnityVSA?
What is the correct order of steps to attach a snapshot to a host?
What are characteristics of the file system Snapshot Copy operation?
A storage administrator has purchased a UnityVSA and asks your recommendation on how to provision the storage to their ESXi host. Based on Dell EMC best practices, what should you recommend?
What is the default NFS host access option?
Fibre Channel access from a server to the Storage Processor can use what pathing options?
What technology, used by Dell EMC Unity XT Snapshots, is accurately described?
What is the purpose of a Proxy NAS Server?
Reference https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h17122-dell_emc_unity-dr_access_and_testing.pdf (05)
The preferred production interface is active. What does the Dell EMC Unity XT system do once a NAS Server starts outbound traffic to an external service?
A storage administrator wants to asynchronously replicate a compressed LUN from the primary site to a Unity at the secondary site. Which statement describes this operation?
A storage administrator is required to test a new version of an application loaded on a secondary host. The administrator must use existing data contained on a LUN provisioned from a Dell EMC Unity to a primary host.
Which solution will meet the requirement and provide space efficiency?
What remote service is required to enable Remote Logging in the Dell EMC Unity XT system?
Before configuring remote logging for a storage system, you must configure each remote system to receive logging messages from the storage system. A root/administrator on the receiving computer can configure the remote syslog server or rsyslog server to receive log information by editing the syslog server or rsyslog server configuration file (syslogng.conf or rsyslog.conf) on the remote system.
According to best practices, what is the maximum latency of the link between local and remote systems when using synchronous replication?