Differences

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--- abstract:darwin:filesystems:filesystems [2021-04-28 12:40] – [Home filesystem] pdw
+++ abstract:darwin:filesystems:filesystems [2021-10-14 11:19] (current) – [Workgroup storage] anita
@@ Line 7: / Line 7: @@
 ==== Home storage ====
-Each user has 20 GB of disk storage reserved for personal use on the home file system. Users' home directories are in /home  (e.g., ''/home/1005''), and the directory name is put in the environment variable ''$HOME'' at login.
+Each user has 20 GB of disk storage reserved for personal use on the home filesystem. Users' home directories are in /home  (e.g., ''/home/1005''), and the directory name is put in the environment variable ''$HOME'' at login.
 ===== High-performance Lustre filesystem =====
@@ Line 13: / Line 13: @@
 ==== Workgroup storage ====
-Allocation workgroup storage is available on a [[abstract:darwin:filesystems:lustre|high-performance Lustre-based filesystem]] having almost 1.1 PB of usable space. Users should have a basic understanding of the concepts of [[abstract:darwin:filesystems:lustre|Lustre]] to take full advantage of this filesystem.
+Allocation workgroup storage is available on a [[abstract:darwin:filesystems:lustre|high-performance Lustre-based filesystem]] having almost 1.1 PB of usable space. Users should have a basic understanding of the concepts of [[abstract:darwin:filesystems:lustre|Lustre]] to take full advantage of this filesystem. The default stripe count is set to 1 and the default striping is a single stripe distributed across all available OSTs on Lustre. See [[https://www.nas.nasa.gov/hecc/support/kb/lustre-best-practices_226.html|Lustre Best Practices]] from Nasa.
 Each allocation will have at least 1 TiB of shared ([[abstract:darwin:app_dev:compute_env#using-workgroup-and-directories|workgroup]]) storage in the ''/lustre/'' directory identified by the <<//allocation_workgroup//>> (e.g., ''/lustre/it_css'') accessbile by all users in the allocation workgroup, and is referred to as your workgroup directory (''$WORKDIR''), if the allocation workgroup has been set.
@@ Line 21: / Line 21: @@
 Each allocation will also have a ''/lustre/<<//workgroup//>>/sw'' directory to allow users to install software to be shared for the allocation workgroup. It can be referred to as ''$WORKDIR_SW'', if the allocation workgroup has been set. In addition a ''/lustre/<<//workgroup//>>/sw/valet'') directory is also provided to store VALET package files to shared for the allocation workgroup.
-Please see [[abstract:darwin:app_dev:compute_env#using-workgroup-and-directories|allocation workgroup]] for complete details on environment variables.
+Please see [[abstract:darwin:app_dev:compute_env#using-workgroup-and-directories|workgroup]] for complete details on environment variables.
 **Note**: A full filesystem inhibits use for everyone preventing jobs from running.
@@ Line 63: / Line 63: @@
 ==== Workgroup ====
-All of Lustre is available as allocation workgroup storage.  To check Lustre usage for all users, use ''df -h /lustre''.
+All of Lustre is available for allocation workgroup storage.  To check Lustre usage for all users, use ''df -h /lustre''.
 The example below shows 25 TB is in use out of 954 TB of usable Lustre storage.
@@ Line 109: / Line 109: @@
 ==== Home and Workgroup ====
-<note important>While all filesystems on the DARWIN cluster utilize hardware redundancies to protect data, there is **no** backup or replication and **no** recovery available for the home or Lustre filesystems.
+<note important>While all filesystems on the DARWIN cluster utilize hardware redundancies to protect data, there is **no** backup or replication and **no** recovery available for the home or Lustre filesystems. All backups are the responsibility of the user. DARWIN's systems administrators are not liable for any lost data.
 </note>