Hi Mohammed,
The link in Mark's message is working for me right now. However, here it is again:
http://infocenter/help/topic/com.sybase.infocenter.dc36272.1572/html/commands/CHDGCBGA.htm
Another way to get to the page is to navigate to
www.sybase.com
Select "Product Documentation" under the "Support" pulldown menu in the black bar.
Click on "Adaptive Server Enterprise"
Click on "Adaptive Server Enterprise 15.7 ESD 2" (this is the most recent full doc set)
search for "Disk Resize"
The core information on the page is the command syntax:
diskresize
name = “device_name”,
size = additional_space
Example: To increase the size of testdev by 4MB, enter:
diskresize name = "test_dev", size = "4M"
You can then alter a database onto the device using the added space:
alter database mydb on test_dev = "4M"
-bret