Differences

This shows you the differences between two versions of the page.

--- habrok:migration:migration_habrok [2023/05/10 11:26] – [Migration to Hábrók] camarocico
+++ habrok:migration:migration_habrok [2025/01/21 09:26] (current) – camarocico
@@ Line 72: / Line 72: @@
 ==== Data migration ====
-The data in the home directories and /data of Peregrine will be made available read-only on the login nodes of Hábrók for a period of three months (until July 1st 2023).
+The data in the home directories and /data of Peregrine was available read-only on the login nodes of Hábrók for a period of three months (until July 1st 2023), and is no longer available.
-This will allow you to migrate the data on these file systems to Hábrók at your leisure, and to select which data is still relevant on the new cluster.
-**The data on Peregrine /scratch will not be migrated, since it is temporary space only.**
-The Peregrine storage areas can be reached in ''/mnt/pg-home'' and ''/mnt/pg-data''.
+**The data on Peregrine /scratch was not be migrated, since it is temporary space only.**
 ===== Hardware classes =====
@@ Line 118: / Line 113: @@
 Please see [[habrok:additional_information:known_issues|]]
+===== FAQ =====
+==== Will my Peregrine account work on Hábrók? ====
+Because there are quite a number of inactive accounts on Peregrine, we have decided not to automatically migrate the accounts to Hábrók, so your account on Peregrine will not automatically work on Hábrók.
+If you want to use the new cluster, you need to request access to it by using the  [[https://iris.service.rug.nl/|Self-Service Portal IRIS]].
+Please go to Research and Innovation Support → Computing and Research Support Facilities → High Performance Computing Cluster → Request Hábrók Account.
+==== Will my data be automatically moved from Peregrine to Hábrók? ====
+We will not automatically move your data from Peregrine to Hábrók. The filesystems on Peregrine, ''/home'' and ''/data'' will be made available read-only on Hábrók for three months after Peregrine shuts down. You will have this time to move your data to permanent storage on Habrok.
+**The data on Peregrine /scratch will not be migrated, since it is temporary space only.**
+==== How do I migrate data to Habrok? ====
+The best tool for copying data from one location to the other is ''rsync''. Here is an example showing how to synchronize a directory with files from the Peregrine ''/data'', available under ''/mnt/pg-data'' on the login nodes to the new ''/projects'' on Hábrók:
+<code>
+rsync -av /mnt/pg-data/p123456/important_data/ /projects/p123456/important_data/
+</code>
+Note the slashes at the end of the source and the destination. The following flags have been used:
+  * ''-a'': archive to copy everything recursively including file ownership and permissions
+  * ''-v'': verbose to show the progress
+You can also enable compression using ''-z'', but this will only speed up the transfer of highly compressible data. Since sufficient bandwidth should be available for the transfers compression will probably only add overhead.
+The best thing about using ''rsync'' is that you can restart the transfer in case of failures, and ''rsync'' will just continue where it stopped.
+==== How do I migrate data from a group folder to Habrok? ====
+The group folders will also be available at ''/mnt/pg_data/pg-group'', and we are currently creating new groups on Habrok. These groups will have a similar naming pattern as on Peregrine, e.g. ''pg-group'' becomes ''hb-group''. We will then add the users to these new groups, and the new group will be the owner of the folder ''/mnt/pg_data/pg-group''. From this point, the data can be copied over to Habrok using ''rsync'', as explained above. The location for the group folder on Habrok will be ''/projects/hb-group''.