Delphi10.3 - FB3 - Firedac BackUp

[Henry Olive 5]

Good Morning,

I use FireDac BackUp component w/o any problem but,

When i backup my data ( 3MB ) my backup file is also 3MB

I asked this question a couple of months ago here Mr.Serge

replied me (Thank you again) and said it is normal.

Yesterday this situation came to my mind & researched in google

but i couldnt find any information then i checked Delphi 10.3

sample projects and found a FireDac Samples project included BackUp, Restore components

I tested to backup my project in sample firedac backup project and i noticed

the backup file's size is nearly 1MB (1/3 of the original data which i expected)

then i compared sample project and Delphi 10.3 component pallet's  BackUp components

i noticed they are different, for example 

1- Sample project's backup component doesnt has DIRECT property but Delphi 10.3 has  

2- Sample project's backup component's Option is totally different then Delphi 10.3

I tried to change DIRECT property value to Off ( Originally it was ndDefault ) and

i tried a new backup this time my backup file is nearly 1,5MB ( 1/2 of the original data )

I'm confused.

Could someone please help me What is DIRECT property & what does they mean (nbDefault, On, Off )

Thank You
 

 

 

 

 

 

 

 

 

 

 

 

 

[Serge_G 85]

6 hours ago, Henry Olive said:

I asked this question a couple of months ago here Mr.Serge

replied me (Thank you again) and said it is normal.

Are you sure I wrote "normal" ? Oh! I see my "yes" was not for size (abnormal for me ) but for the  "if there are users connected ("warmbackup ")"

sorry for mistyping, when I quoted the second part about size, something happened and I was thinking No it's abnormal  

Edited July 15, 2022 by Serge_G