No of Members in a PDS

sivanag · New User Joined: 02 Mar 2005 Posts: 1 Location: hyderabad

hellow friends ,

here is my question when we are creating PDS we are specifying the directorie block for 1 directory 4 members are created like that how many maximum no. of directory block can we use or can we code

one more question i have a pds of directory bock size of 10 it has 45 memebers when iam creating another member i got problem there is no space , i compresed the data set even then iam getting problem my requirement is to crate the member in the same pds how can i increse the directory block size

with regards
ravi kumar singh.b

rick · New User Joined: 18 Jun 2004 Posts: 59 Location: Chennai

hi Ravi,

The number of members can exist in a directory block is

(number of directory blocks * 6) - 1

so it is possible to have 5 members if we create a pds with directoty block 1.

Regarding your second problem, it the PDS may not have any space in it. ie) your primary and secondary allocations are used. If thatz is the condition there is no use in compressing the dataset. Try increasing the space allocated..

die7nadal · Active User Joined: 23 Mar 2005 Posts: 156

See I have a PDS that has
Current Utilization
Used cylinders . . : 22
Used extents . . . : 1
Used dir. blocks . : 1
Number of members . : 7
that resides on 3390 Device, the formula that u gave doesnt satsfy this condition. DO u think the Device type also palys a part.

mmwife · Super Moderator Joined: 30 May 2003 Posts: 1592

Hi Nadel,

Can you show the JCL you used to create the PDS. The answer probably lies there.

die7nadal · Active User Joined: 23 Mar 2005 Posts: 156

Jack,

I created using the ISPF Allocate option,

Current Allocation
Allocated cylinders : 22
Allocated extents . : 1
Maximum dir. blocks : 10

If you want any more details let me know.

rick · New User Joined: 18 Jun 2004 Posts: 59 Location: Chennai

Hi die7nadal,

Have you allocated it as PDS or PDS-E?

die7nadal · Active User Joined: 23 Mar 2005 Posts: 156

I filled this field as PDS, does this mean that it is a PDS

Data set name type : PDS