Answer Posted / kalyan rakesh

VSAM groups logical records into blocks called control
interval.
control intervals are inturn grouped into control areas.

A control interval consists of 1)data records
2)free space
3)unused space
4)control information of
a)RDF
b)CIDF
collection of adjacent CI s is CA.

what is buffering and how does it apply to vsam files ?

1179

---

can you specify some the distinctive features of a ksds, key sequenced dataset?

1029

---

Explain the function of the relative record data set?

936

---

we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.

1328

---

What is the function of linear dataset in vsam?

1073

---

Why is master catalog used in vsam?

1120

---

in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?

1205

---

What is the function of entry sequenced data set?

1084

---

Define free space?

1058

---

what are the codes returned by the ams (access method services) command during the execution in vsam?

1290

---

what do you mean by a vsam slot?

1004

---

what do you mean by a upgrade set in vsam?

1077

---

what are s0c1, s0c4, s0c5, s0c7 abends?

1309

---

explain in brief what are the 3 types of vsam files?

1109

---

to use the rewrite command, how should the vsam file be opened?

1311

---