understand the sectors in disk_&_ differenece between MB & MiB,GB & GiB

 what is the purpose of fdisk -l please explain ?
=================================
fdisk is a command or utility in Linux 
which is used to display the total volumes in a server


how to display the total volumes in your Linux server
======================================
by using fdisk -l we can display the total volumes in our Linux server



can I attach volume to the server which is another availability zone
================================================
no , it is not possible
why ? ---> because , as AWS Cloud guidelines 
         whenever we attach any volume to the any server
         we must create server and volume in the same availability zone 
         otherwise it is not possible to attach volume to the server
         
         volume = hard disk 
                  ssd gp3
         
Explain IOPS ?
===========
IOPS stands for Input Output per second
(Input/Output Operations Per Second)
with the help of IOPS
we can perform read and write operations very fast 
reading the data from the disk or volume
writing the data into disk 
,update the data
 ,delete the data
 ,add new data 
the total no.of read and write operations can be handled or 
can be processed by the volume
IOPS nothing but
total no.of read and write operations/requests a volume can handle/can process


8 bits = 1 byte
1024 bytes = 1KB *kilo byte
1024 KB = 1MB  *mega byte
1024 MB = 1GB  *giga byte
1024 GB = 1TB  *tera byte
1024 TB = 1PB  *peta byte
1024 PB = 1EB  
1024 EB = 1ZB  *zeta byte
1024 ZB = 1YB  *yotta byte
1024 YB = 1BB 
1023 BB = 1GB  *geop byte

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