File Systems

File Space

Global file space on Launch is available on all compute and login nodes. It is organized into the file systems shown in the table below. Access to the allocated file space is through the indicated directories that are setup automatically for every user.

File System	Directory	Environment Variable	Storage Hardware	File Space Quota	File Counts Quota	Comments
Home	/home/USERID	$HOME	DDN	10 GB	10000	Upon login, you will be situated in /home/$USER. The use of this area is for small-to-modest amounts of processing: small software, scripts, compiling, editing. Its space and file count limits are not extensible. We are still working on enabling quotas for home directories.
Scratch	/scratch/user/USERID	$SCRATCH	DDN	1 TB	250000	This is high performance storage intended to temporarily hold larger files and is for on-going processing that uses them. It is NOT backed up nor is it intended as long-term storage. Please delete or move out of these area any files that are not frequently used.
Project	/scratch/group/PROJECTID	$PROJECT	DDN	5 TB	500000	This high performance storage is shared among members of this particular group. It is not purged while the allocation is active. Data will be removed 90 days after allocation expiration.

Members of the ACCESS allocation are automatically added to the group project space once the user is added to the ACCESS allocation. Likewise, when a member is removed from the ACCESS allocation, the user will be automatically removed from the group project space.

Quotas & File Use

Quotas are currently enabled only for user's scratch and project/group directories. You can see these by using the showquota command. We are still working on enabling quotas for home directories.