Expanding CICS volumes on Windows

You can expand a CICS logical volume backed by a Windows file device

On the Windows platform, you can create a new file device with the %CICSPATH%\etc\fileVol program.

C:\>%CICSPATH%\etc\fileVol
Usage: filevol <file-name> <file-size-in-bytes>
or : filevol <file-name> <file-size-in-kbytes>k
or : filevol <file-name> <file-size-in-mbytes>m

1. Create new physical volume of size 10 MB using filevol command.

C:\var>fileVol \\.\C:\var\log1 10m

10 MB is 10485760 bytes.
Set \\.\C:\var\log1 to 10485760 bytes.

2. Initialize the newly created disk and associate with the CICS server abcd.

C:\var>tkadmin init disk \\.\C:\var\log1 -server /.:/cics/ppc/gateway/abcd

Initialized disk partition \\.\C:\var\log1
disk size (in pages): 2559

3. Expand physical volume of the CICS server using the following command:

C:\var>tkadmin expand pvol -server /.:/cics/ppc/gateway/abcd
log_Pabcd 1 \\.\C:\var\log1 0

4. Check the status of the physical volume changes by using tkadmin query command:

C:\var>tkadmin query pvol -server /.:/cics/ppc/gateway/abcd
log_Pabcd

Information about physical volume log_Pabcd
All sizes and offsets are in pages. Page Size is: 4 KB
Mapped to logical volume log_Pabcd
chunk size: 64
number of regions: 2
region 0: disk: C:\VAR\log_Pabcd offset: 0 size: 1984
region 1: disk: \\.\C:\var\log1 offset: 0 size: 2496
total size: 4480

5. Expand the logical volume of the CICS server using the following command:

C:\var>tkadmin expand lvol -server /.:/cics/ppc/gateway/abcd
log_Pabcd 4480

6. Check status of the logical volume changes by using tkadmin query command:

C:\var>tkadmin query lvol -server /.:/cics/ppc/gateway/abcd
log_Pabcd

Information about logical volume log_Pabcd
All sizes and offsets are in pages. Page Size is: 4 KB
size: 4480 chunkSize: 64
Backing physical volumes (only 'clean' and 'dirty' volumes are active):
log_Pabcd (clean)

The volume is currently mounted.