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Hitachi Digital Services Storage Administrator Interview Questions, Process, and Tips

Updated 7 Aug 2021

Hitachi Digital Services Storage Administrator Interview Experiences

1 interview found

I applied via Company Website and was interviewed in Jul 2021. There were 4 interview rounds.

Interview Questionnaire 

7 Questions

  • Q1. What is san ?
  • Ans. 

    SAN stands for Storage Area Network. It is a high-speed network that connects servers and storage devices.

    • SAN is a dedicated network that allows multiple servers to access shared storage resources.

    • It provides centralized storage management and allows for scalability and flexibility.

    • SANs use protocols like Fibre Channel or iSCSI to connect servers and storage devices.

    • SANs can be used for various purposes like data backu...

  • Answered by AI
  • Q2. What is nas
  • Ans. 

    NAS stands for Network Attached Storage. It is a file-level storage device that provides centralized data storage and access over a computer network.

    • NAS is a storage device that connects to a network and allows multiple users to access and share files.

    • It provides file-level access, meaning users can access individual files and folders stored on the NAS.

    • NAS devices often have their own operating system and can offer add...

  • Answered by AI
  • Q3. What is multipathing
  • Ans. 

    Multipathing is a technique used in storage systems to provide redundancy and load balancing by using multiple paths between servers and storage devices.

    • Multipathing improves storage system performance and availability.

    • It allows for load balancing by distributing I/O traffic across multiple paths.

    • Redundancy is achieved by having multiple paths in case one fails.

    • Multipathing can be implemented at the hardware or softwar...

  • Answered by AI
  • Q4. How many types of topologies in San and explain it one by one
  • Ans. 

    There are three types of topologies in SAN: point-to-point, arbitrated loop, and switched fabric.

    • Point-to-point topology connects two devices directly.

    • Arbitrated loop topology connects devices in a loop, where each device has a unique address.

    • Switched fabric topology connects devices through a central switch, allowing multiple simultaneous connections.

    • Examples: Fibre Channel (FC) and Internet Small Computer System Inte

  • Answered by AI
  • Q5. How many types of backup
  • Ans. 

    There are three types of backup: full, incremental, and differential.

    • Full backup: backs up all data and takes the longest time and uses the most storage space

    • Incremental backup: backs up only the changes made since the last backup and is faster and uses less storage space than a full backup

    • Differential backup: backs up all changes made since the last full backup and is faster than a full backup but uses more storage sp

  • Answered by AI
  • Q6. What is replication
  • Ans. 

    Replication is the process of creating and maintaining a copy of data or information in another location.

    • Replication ensures data availability and disaster recovery.

    • It can be synchronous or asynchronous.

    • Examples include database replication, file replication, and virtual machine replication.

  • Answered by AI
  • Q7. What is reduplication
  • Ans. 

    Reduplication is the process of eliminating duplicate data in storage systems.

    • Reduplication reduces storage space requirements and improves backup and recovery times.

    • It works by identifying and removing identical data blocks and replacing them with pointers to a single copy.

    • For example, if multiple users have the same file attachment in their emails, reduplication will store only one copy of the attachment and point to...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Just go through all the storage concepts and itil concepts and senarious in work environment

Skills evaluated in this interview

Hitachi Digital Services Interview FAQs

How to prepare for Hitachi Digital Services Storage Administrator interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Hitachi Digital Services. The most common topics and skills that interviewers at Hitachi Digital Services expect are SAN, System Administration, EMC, Firmware and Analytical.
What are the top questions asked in Hitachi Digital Services Storage Administrator interview?

Some of the top questions asked at the Hitachi Digital Services Storage Administrator interview -

  1. How many types of topologies in San and explain it one by o...read more
  2. What is multipathi...read more
  3. How many types of back...read more

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