What is deduplication in Avamar?
Avamar global data deduplication ensures that only unique data is backed up across the backup network. Using RAID (redundant array of independent disks) & RAIN (redundant array of independent nodes) it also provides systematic fault tolerance in case of disk or node failure.
What is an advantage of the EMC Avamar deduplication technology?
Deduplication dramatically reduces the amount of data sent and stored – eliminating backup bottlenecks and reducing storage costs.
Which are the three key features of an Avamar system?
Key Features:
Intuitive centralized management and encryption for data security. Integration with EMC Data Domain systems for enhanced scalability.
What is the difference between Data Domain and Avamar?
Avamar software provides source-based deduplication, reducing data at the server before the data is moved to the backup target. That is different than the Dell EMC Data Domain platform that performs target-based deduplication at the disk backup appliance.
What is the difference between Avamar and Networker?
Features: Users of both products are happy with their performance, stability, and scalability. Dell EMC Avamar users say it is a powerful and fast tool, but the user interface could be enhanced. Dell EMC Networker users say it is easy to use but needs more support for image backups and better integration options.
What is hashing in Avamar?
The hash is created from the compressed data. Data is stored with the hash, and part of the hash value is used as an address to locate the data. Data storage is performed in a hierarchical method of hashes and composite hashes.
How does Avamar backup work?
With the guest backup option, the Avamar client software is installed on the individual virtual machines. Backup configuration for this method is identical to that of a physical machine. Backup agents are installed on the virtual machines and send their backup data to the backup application for storage.
What can Avamar backup?
Dell Avamar enables fast, efficient backup and recovery through its integrated variable-length deduplication technology. Avamar is optimized for fast, daily full backups of physical and virtual environments, NAS servers, enterprise applications, remote offices and desktops/laptops.
Which RAID types does Avamar support?
The Avamar system provides up to four levels of systematic fault tolerance: RAID, RAIN, replication, and checkpoints. Redundant Array of Independent Disks (RAID). All standard Avamar server node configurations use RAID to protect the system from disk failures.
What are the types of replication provided by Avamar?
Replication using Avamar
Many-to-one, one-to-many, cascading replication. Extension of data retention times. Root-to-root replication.
How does Data Domain deduplication work?
Data Domain systems perform deduplication inline, as the backup stream comes into the system and only stores unique elements on disk. Unlike post-process deduplication, they do not have to store data on disk first and then deduplicate it afterwards as a separate process.
How does avamar connect to data domain?
Add DDVE to Avamar
- Open the Avamar Administrator Console.
- Click on Server tab.
- Click on the Server Management tab.
- Click on Actions -> Add Data Domain System. On the System tab of the subsequent Window input the following details. Provide Data Domain FQDN DNS name. DDBoost user name and password. On the SNMP tab.
What is avamar utility node?
The Utility node provides internal Avamar server processes and services, including the administrator server, jobs scheduling, authentication, and maintenance and web access. The Data node is dedicated to providing storage for the backups.
Are Avamar backups encrypted?
It uses client-side agents, or the Network Data Management Protocol (NDMP) with Avamar Accelerators in the case of NAS systems, to control data backup. Avamar protects only unique blocks at the source to greatly reduce the amount of data that is transferred and stored. All data is encrypted in flight for security.
What is Avamar architecture?
Avamar is backup and recovery software with integrated with variable-length data deduplication technology. It enables fast, reliable backup and recovery for remote offices, VMware environments, and datacenter LANs.
What is raid in Avamar?
Redundant Array of Independent Disks (RAID).
All standard Avamar server node configurations use RAID to protect the system from disk failures.
What is MCS in Avamar?
Management Control Server acts as a single point of user interface and as a broker agent between the clients and the GSAN.
What are the types of deduplication?
There are two main methods used to deduplicate redundant data: inline and post-processing deduplication. Your backup environment will dictate which method you use. Inline deduplication analyzes data as it is ingested in a backup system. Redundancies are removed as the data is written to backup storage.
What is deduplication in Salesforce?
Deduplication and matching rules are what determines if there’s a potential duplicate record and creates a duplicate alert on the record you’re viewing. Besides native options in Salesforce and several tools to help you dedupe your Salesforce instance on the AppExchange, your organization will need to make changes.
What is dataset in Avamar?
Dataset. Identifies the content of the backup; for example, filesystems, directories, or files. The Default Dataset is inherited from the Avamar Group, but can be overridden with a specific dataset.
What port does Avamar use?
In Avamar 5, acsd listens to port 27000.
How many RAID levels are there?
RAID levels are defined by the combination of the techniques used; they also provide varying degrees of reliability (ability to withstand drive failure) and availability (speed of I/O). There are six basic RAID levels: RAID Level 0 stripes data across two or more drives. No parity.
How do I start GSAN in Avamar?
- PRE-REQUISITE TASKS. ssh onto the Avamar utility node and login ‘admin’ user.
- GENERATE A VALID CHECKPOINT. Prior to shutting down the Avamar system, we must have a recent validated (HFScheck) checkpoint.
- STOPPING AVAMAR PROCESSES.
- SHUTDOWN LINUX OS.
- POWER-OFF ALL COMPONENTS.
- STARTUP LINUX SYSTEMS.
- START THE AVAMAR SOFTWARE.
What is deduplication techniques?
Data deduplication is a process that eliminates excessive copies of data and significantly decreases storage capacity requirements. Deduplication can be run as an inline process as the data is being written into the storage system and/or as a background process to eliminate duplicates after the data is written to disk.
How do you do deduplication in Salesforce?
In the first phase of a deduplication project, you focus on your data requirements alone.
- List all objects that need deduplicating. Make a list of all objects that need to be deduplicated.
- List relevant fields for each object.
- Indicate matching method for all fields.
- List words to ignore.