View source for Migration of Euler scratch directories

Since the underlying ''Panasas'' storage system is reaching its end-of-life, we were planning to migrate all users' '''scratch''' directories (/cluster/scratch/''username'') to a new ''Lustre'' storage system over the coming months.

The latest [[Euler_power_outage_(10_Aug_2018)|power outage at CSCS]] and the increasing risk of catastrophic failure of the Panasas system have forced us to '''accelerate''' this plan and to migrate all scratch directories '''at once'''. This process started on 13 August while Euler was still off-line and was completed on 15 August.

Except for the ~30 hours when /cluster/scratch was accessible in '''read-only''' mode, the migration was done completely transparently. The new scratch directories are accessible under the '''same path''' as before, with the same permissions and quotas.

Speaking about '''quotas''', the <tt>pan_quota</tt> command cannot be used any more. You can use the new <tt>scr_quota</tt> to check your scratch usage & quotas.

Please contact {{cluster support}} if you notice any problem caused by the migration, like corrupted files or incorrect permissions.