Scratch and Resource disk space
Posted: Tue Jul 21, 2009 6:37 pm
Hello All,
We have many columns in our source tables where data type is varchar(500). However in actual practice many of these values are null and not more than 15 characters. My understanding was if we use sort then actual scratch disk space requirement would be (average row length * record count). But I have observed that datastage is taking maximum row length. Due to this we need huge resource disk space. Is there any option by which sort will only take actual row size into consideration while creation files in scratch disk.
Same thing is for resource disk as well.
Thanks in advance.
-CDW
We have many columns in our source tables where data type is varchar(500). However in actual practice many of these values are null and not more than 15 characters. My understanding was if we use sort then actual scratch disk space requirement would be (average row length * record count). But I have observed that datastage is taking maximum row length. Due to this we need huge resource disk space. Is there any option by which sort will only take actual row size into consideration while creation files in scratch disk.
Same thing is for resource disk as well.
Thanks in advance.
-CDW