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
$VSC_DATA_VO
to the scratch before the run and save any results from scratch into$VSC_DATA_VO
after the run.- Reliability: Very High
Data is stored in a redundant file system with data replication.
- Back-ups:
Back-ups policy depends on each VSC cluster. Check the Tier-2 Storage Infrastructure characteristics of the
VSC_DATA
storage of your cluster.
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 replication.
- Back-ups:
Back-ups policy depends on each VSC cluster. Check the Tier-2 Storage Infrastructure characteristics of the
VSC_SCRATCH
storage of your cluster.