lock (.lck) file issue with powerhouse - SUSE Linux

[sunildagde]

We are doing migration of our powerhouse application from SunOS to Linux.

whenever we access / update / insert / delete record using quiz or qtp session

.lck file is getting generated in data area
.lck files are of small sizes but wondering why those files are getting created for each operation on records

Under SunOS system this issue is not happens,

Anything special we need to do in order to avoid those .lck files in SUSE linux  ?
(or) Can we ignore those .lck files ?
Anything related with indexing as we migrated CI-SAM indexing to DISAM since SuSE linux is compatible with DISAM ?

Please suggest.