VO Data
- Location
$VSC_DATA_VO,$VSC_DATA_VO_USER- Purpose
Storage of datasets or resulting data that must be stored in the cluster to carry out further computational jobs, and that can be shared with co-workers.
- Availability: Very high
Accessible from login nodes, compute nodes and from all clusters in VSC.
- Capacity: High and expandable
By default, 112.5 GB (soft limit), 125.0 GB (hard limit, 7 days grace time). Can be expanded upon request.
- Perfomance: Low
Jobs must always copy any data needed from
$VSC_DATA_VOto the scratch before the run and save any results from scratch into$VSC_DATA_VOafter the run.- Reliability: Very High
Data is stored in a redundant file system with data replication off-site.
- Back-ups: short and mid-term
Regular data snapshots allow to recover data at multiple points in time. Daily snapshots are kept for the past 7 days and weekly snapshots for the past 3 months.
VO Scratch
- Location
$VSC_SCRATCH_VO,$VSC_SCRATCH_VO_USER- Purpose
Storage of temporary or transient data that can be shared with co-workers.
- Availability: High
Accessible from login nodes and compute nodes in the local cluster. Not accessible from other VSC clusters.
- Capacity: High and expandable
225 GB (soft limit), 250 GB (hard limit, 7 days grace time). Can be expanded upon request.
- Perfomance: High
Preferred location for all data files read or written during the execution of a job. Suitable for all workload types.
- Reliability: Medium
Data is stored in a redundant file system, but without off-site replication.
- Back-ups: short-term
Regular data snapshots allow to recover data lost recently. Daily snapshots are kept for the past 7 days.