GPT vs. MBR Partitioning, A Quick Look
- Get link
- X
- Other Apps
Partitioning is
a way to manage space for your server or PC that ensure the OS is in the right
place to manage data. When a new medium is installed on a server or a personal
computer, the operating system will not install data until the new storage
device has been partitioned. However, some users may not understand which
partition method to use when prompted. Below will outline the difference
between GPT and MBR partitions, their limitations, and level of security.
What
is GPT and MBR partitions?
Master Boot Record or MBR is an older method that is used for the standard BIOS partition table.
Simultaneously, GUID Partition Table or GPT is used in Unified Extensible
Firmware Interface or UEFI. “GPT is new. But the new one is not
always better than the old one. Many vendors utilize MBR technology since it is
still predominantly used in the real world. GPT disks have the advantages of
partition size, the number of partitions, and resilience. If a computer that
uses UEFI, it will only support GPT. So, when you upgrade your computer, it may
be necessary to convert MBR to GPT at first.” (Catherine, 2019)
GPT and MBR comparison
Master
Boot Record (MBR)
o
Maximum Partition Capacity:
2 TB
o
Maximum Partition
Number: 4 Primary Partitions (or 3 primary partitions + an infinite number of logical
partitions)
o
Firmware Interface Support:
BIOS
o
Operating System
Support: Windows 7 and older systems like Windows 95/98, XP 32-bit, Windows
2000, Windows 2003 32-bit
GUID
Partition Table (GPT)
o
Maximum Partition
Capacity: 9.4 ZB (1 zettabyte = 1 billion terabytes)
o
Maximum Partition
Number: 128 primary partitions
o
Firmware Interface
Support: UEFI
o
Operating System
Support: New systems like Windows 10 32-bit, Windows 8/8.1/10 64-bit
Limitations, Security, and
Avoiding Issues
MBR does have limitations as it only works with disks up
to 2 TB in size. Also, MBR only supports up to four primary partitions, so if
you require more, you will have to make one of the partitions an "extended
partition" and create logical partitions within it. In comparison, GPT can
produce up to 128 primary partitions. In the sense of security, GPT has more of
an advantage as it contains a CRC32 checksum for itself and a partition table. Suppose
by any chance, there is an error. In that case, the operating system can use
the checksum to diagnose the partition table. If any errors are detected, the
operating system can recover the whole partition table from the backup GUID
partition header. However, if a partition is corrupted on an MBR partition, the
disk is unusable. The best way to avoid issues and downtimes would be to have a
backup of ready in case a failure was to occur. This way, an administration can
be prepared to swap out a drive in a moment's notice.
What
they are used for
GPT can be found on newer setups around the world. From
data centers to personal computers, GPT is the method used on more modern
operating systems. MBR is used on older operating systems, such as Windows 95
to XP, and does not allow for much headroom when it comes to partitioning. As
UEFI comes more commonly placed, GPT will be the method used moving forward.
Have you had experiences with GPT and MBR partitioning? If so, and you would like to add your experience or if I have left anything out, please leave a comment below. I would love to hear from you!
References
Catherine. (2014, December
24). MBR vs GPT: Which one is better for you? AOMEI Partition
Assistant | Partition Manager Software for Windows PC and Server. https://www.diskpart.com/gpt-mbr/mbr-vs-gpt-1004.html
Hoffman, C. (2017, February
9). What’s the difference between GPT and MBR when partitioning a
drive? How-To
Geek. https://www.howtogeek.com/193669/whats-the-difference-between-gpt-and-mbr-when-partitioning-a-drive/
JasonGerend. (n.d.). Change
a master boot record (MBR) into a GUID partition table (GPT) disk.
Technical documentation, API, and code examples | Microsoft Docs. https://docs.microsoft.com/en-us/windows-server/storage/disk-management/change-an-mbr-disk-into-a-gpt-disk
Vera. (2020, August 13). Mbr
vs gpt (Focus on difference and how to convert safely).
MiniTool. https://www.partitionwizard.com/partitionmagic/mbr-vs-gpt.html
- Get link
- X
- Other Apps
Comments
Post a Comment