What is check point restart?

[Priyank Sharma]

What is check point restart in IMS? Is having GSAM file necessary, in a program having the check point restart?

[enrico-sorichetti]

if You do not know what checkpoint/restart is
why do You worry about GSAM ?

searching the IBM REDBOOKS collection will tell all You might want to know about both subjects

[Priyank Sharma]

Thanks Enrico.

I was trying to understand the check pint restart at my new project. Nearly every program has a GSAM file which has got check point restart in it. That's whay I ask for GSAM.

I've also seen other projects in which they are using check-point restart but then they used DB2 for it. So wanted to know in more details about it.