Storage5k

Grid'5000 storage resources

Sites	VM Name	Disk partition	Size	status
Sophia	stock.sophia.grid5000.fr	/dev/sda	2000 GB
Grenoble
Lille
Lyon
Nancy
Orsay
Rennes
Bordeaux
Toulouse

Purpose

This page presents ways to use storage5k for the storage reservation in Grid'5000.

Overview

Each user has a default storage space (/home) exported via NFS. For larger storage needs, a user can book another storage space for a determined period. storage5k allows users to book resources with OAR types of "storage".

Usage

First check the chunk disk size of the oar storage resources

malachheb@fsophia:~$ storage5k -a chunk_size
Chunk size: 10737418240 (10 GB)

In this example the chunk size is 10GB, so for a reservation of 100 GB, you should ask for 10 chunks.

Storage reservation

A storage reservation is an oar job with the resources type is "storage". you can submit a storage reservation with two way:

 with storage5k command:
 malachheb@fsophia:~$ storage5k -a add -l chunks=2,walltime=2
 [ADMISSION RULE] Modify resource description with type constraints
 [ADMISSION RULE] Modify resource description as storage
 Generate a job key...
 OAR_JOB_ID=648
 Reservation mode : waiting validation...
 Reservation valid --> OK

 with oarsub command:
 malachheb@suno-5:~$ oarsub -t deploy -l chunks=2,walltime=2 -r "2011-12-09 11:57:00"
 [ADMISSION RULE] Modify resource description with type constraints
 [ADMISSION RULE] Modify resource description as storage
 Generate a job key...
 OAR_JOB_ID=649
 Reservation mode : waiting validation...
 Reservation valid --> OK