I need clarification for 2 things.

1) Running reorg command for huge table I normally get Error"-30081
" which means communication error has been detected as a result I could not perform reorg command. Is there any way to overcome this issue. Just fyi, I directly run command on database server.

2) Sometimes I get an impression while executing reorg command, it locks the database table though default behavior shows that reorg allow WRITE access on tables. Can anyone please clarify on this?