Скачать или смотреть (SDB6) PC Hardware part5 Disk Management-MBR and GPT, Partitions, File System FAT and NTFS

20221020 121126
MBR and GPT
When a fresh/new disk drive connected system ask for initialize as MBR type or GPT type
Partition style/Type – MBR or GPT
When we install OS in fresh PC/System – OS and MotherBoard are BIOS firmware – Disk initialize as MBR
MotherBoard – UEFI firmware and OS is latest (uefi support) – Disk initialize as GPT

MBR: Master Boot Record
4 Primary partitions
3 Primary partitions and 1 extended partitions
1 extended –multiple no of logical drives
Partition Size support – upto 2TB

GPT:GUID Partition Table
128 Primary partitions
No extended- no logical
Partition Size : more than 2TB, Upto 18EB

Disk Management

CMD
-cmd -run as Administrator
-DISKPART

RUN- Diskmgmt.msc
-Initialized disk , offline, online, convert into basic to dynamic, convert into mbr to gpt
-partition: new simple volume, shrink, extend, delete
-volumes -raid volumes – simple , spanned, striped(raid0), mirror(raid1), raid5(optional)

Formatting – defining file system

Formatting is the Process of Creating File System on the Partition
A File System tells how the Files and Folders to be created are stored and retrived


Cant store big files and OS files in FAT partitions
Max FAT32 partition size is 32GB only
NTFS – can store big file, partition size more than 2TB, Upto 18EB


File System
To store data in a device we need file system
Win : FAT, NTFS
FAT: Supports 32GB
NTFS - upto 2TB and more than 2TB, Security, Encryption, Compression, Quota, and Indexing
exFAT – SD Card (more than 32GB)
ReFS – Resilient File System – CRC prevents data from corruption
Linux/Unix: ext3,ext4,xfs
Network sharing – NFS, CIFS (SMB)
DVD – UDF
CD – HSFS,CDFS