RESEARCH PAPER ON STORAGE

Q1. What is Direct Attached Storage (DAS)?

Ans: Direct Attached Storage (DAS) is physically attached to the server.

Q2. What are the advantages of Direct Attached Storage (DAS)?

Ans: The advantages of Direct Attached Storage (DAS) are as follows:

• Inexpensive solution.
• Easy to configure.

Q3. What are the disadvantages of Direct Attached Storage (DAS)?

 Ans: The disadvantages of Direct Attached Storage (DAS) are as follows:

• Slower.
• Isolated because the disks are attached to a single server.

Q4. What is Network Attached Storage (NAS)?

Ans: Network Attached Storage (NAS) is the centralized storage that is attached to a dedicated storage device accessed through network shares.

Q5. What are the advantages of Network Attached Storage (NAS)?

Ans: The advantages of Network Attached Storage (NAS) are as follows:

• Relatively inexpensive.
• NAS offers centralized storage at an affordable price.
• Easy to configure.

Q6. What are the disadvantages of Network Attached Storage (NAS)?

Ans: The disadvantages of Network Attached Storage (NAS) are as follows:

• Slower access time.
• Not an enterprise solution.

Q7. What is a SAN?

Ans: SAN offers higher availability with the most flexibility. SAN's are implemented by using Fibre Channel or iSCSI.

Q8. What are the advantages of SAN?

Ans: The advantages of SAN are as follows:

• Fastest access time.
• Highly expandable.
• Centralized storage.
• High level of redundancy.

Q9. What are the disadvantages of SAN?

Ans: The disadvantages of SAN are as follows:

• High expensive.
• Requires specialized skills.

Q10. What is RAID?

Ans: RAID combines multiple disks into a single logical unit to provide fault tolerance. RAID provides fault tolerance by using disk mirroring and parity information. RAID should not reflect server backups.

Q11. What is meant by spanned volume?

Ans: A spanned volume is made up of disk space on more than one disk. Create a spanned volume if you need a volume that is too large for a single disk. You can extend a spanned volume by adding free space from another disk.

STEP 1 - Open Disk Management from Computer Management.

STEP 2 - Make all the 3 disks Disk 1, Disk 2 and Disk 3 online by right click on the disk..

STEP 3 - Right click on Disk 1 and click on New Spanned Volume...

STEP 4 - Click on Next.

STEP 5 - Select Disk 2 from Available and click on Add.

STEP 6 - Click on Next.

STEP 7 - Click on Next.

STEP 8 - Tick check the box "Perform a quick format.

STEP 9 - Click on Next.

STEP 10 - Click on Finish.

STEP 11 - Click on YES.

STEP 12 - Now a new volume E:\ drive will be created.

STEP 13 - Now open File Explorer and check the new volume E:\ drive.

STEP 14 - Now we need to right click on New Volume E:\ drive and click on Delete Volume...

STEP 15 - Click on Yes.

 Q12. What is meant by striped volume?

Ans: A striped volume stores data in stripes on two or more disk. A striped volume gives you faster access to your data than a simple or spanned volume.

STEP 1 -  Right click on Disk 1 and click on New Striped Volume...

STEP 2 - Click on Next.

STEP 3 - Select Disk 2 from Available and click on Add.

STEP 4 - Click on Next.

STEP 5 - Click on Next.

STEP 6 - Tick check the box "Perform a quick format.

STEP 7 - Click on Next.

STEP 8 - Click on Finish.

STEP 9 - Click on Yes.

STEP 10 - Now a new volume E:\ drive will be created.

STEP 11 - Now open File Explorer and check the new volume E:\ drive.

STEP 12 - Now we need to right click on New Volume E:\ drive and click on Delete Volume...

STEP 13 - Click on Yes.

Q13. What is meant by Mirrored Volume?

Ans: A mirrored volume duplicates your data on two disks. Create a mirrored volume if you want to keep two separate copies of all your information to prevent data loss.

STEP 1 - Right click on Disk 1 and click on New Mirrored Volume...

STEP 2 - Click on Next.

STEP 3 - Select Disk 2 from Available and click on Add.

 

 STEP 4 - Click on Next.

 STEP 5 - Click on Next.

STEP 6 - Tick check the box "Perform a quick format.

 

STEP 7 - Click on Next.

STEP 8 - Click on Finish.

STEP 9 - Click on Yes.

STEP 10 - Now a new volume E:\ drive will be created.

STEP 11 - Now open File Explorer and check the new volume E:\ drive.

STEP 12 - Now we need to right click on New Volume E:\ drive and click on Delete Volume...

STEP 13 - Click on Yes.

Q14. What is meant by RAID-5 volume?

Ans: A RAID-5 volume stores data in stripes on three or more disks. It provides a way of recovering your data id part of the data is lost.

STEP 1 - Right click on Disk 1 and click on New RAID-5 Volume...

STEP 2 - Click on Next.

STEP 3 - Select Disk 2 and Disk 3 from Available and click on Add.

STEP 4 - Click on Next.

STEP 5 - Click on Next.

STEP 6 - Tick check the box "Perform a quick format.

STEP 7 - Click on Next.

STEP 8 - Click on Finish.

STEP 9 - Click on Yes.

STEP 10 - Now a new volume E:\ drive will be created.

STEP 11 - Now open File Explorer and check the new volume E:\ drive.

STEP 12 - Now we need to right click on New Volume E:\ drive and click on Delete Volume...

STEP 13 - Click on Yes.

Q15. What is the difference between MBR and GPT?

Ans: MBR - MBR is a standard partition table format since early 1980s. MBR supports a maximum of 4 primary partitions per drive. MBR can partition a disk up to 2 TB. Use MBR for disk smaller than 2 TB. 

GPT - GPT is the successor of MBR partition table format. GPT supports a maximum of 128 partitions per drive. GPT can partition a disk up to 18 EB. Use GPT for disk larger than 2 TB.

Q16. What is meant by simple volume?

Ans: Simple volume can only be on a single disk.

 

Q17. What is meant by basic disks?

 

Ans: Basic disk are disks initialized for basic storage. It is the default storage for Windows operating system.

Q18. What is meant by dynamic disks?

Ans: Dynamic disks can be modified without restarting windows. It provides several options for configuring volumes.

Q19. What are the requirements of disk volume?

Ans: The requirements of disk volume are as follows:

• A boot volume for the Windows operating system files.

Q20. What is the difference between FAT, NTFS, and ReFS?

Ans: FAT – FAT provides basic file system. FAT provides FAT32 to enable larger disks. FAT provides partition size limitations.

NTFS – NTFS provides metadata. NTFS provides auditing and journalling. NTFS provides security.

ReFS – ReFS provides backward compatibility support for NTFS. ReFS provides enhanced data verification and error correction. ReFS support for larger files, volumes, directories,etc.

Q21. What are Mount Points?

Ans: A mount point is a reference to a location on a disk that enables Windows operating system access to disk resources.

Q22. Why do we need to use volume mount points?

Ans: We need to use volume mount points:

● To mount volumes or disks as folders.

● To add disk space withing changing the folder structure.

Q23. What are Links?

Ans: A link file contains a reference to another file or directory. Link options are symbolic file link or soft link and symbolic directory link or directory junctions.

Q24. What we need to consider when we want to resize a disk?

Ans: When we want to resize a disk, we need to consider the following points:

● We can extend or shrink NTFS volumes.

● ReFS volumes can only be extended.

● FAT/FAT32/exFAT cannot be resized.

Q25. What are virtual hard disks?

Ans: Virtual hard disks are files that we can use like physical hard disks. We can create and manage virtual hard disks by using Disk Management and Diskpart. We cam configure .vhd or .vhdx files. We can use virtual hard disks as a deployment technology.