MHPCC
**SECOND NOTICE** MHPCC User Data Quota Enforcement - 15GB
22 May 2015
MHPCC will begin to enforce the 15GB home disk limitation on May 27, 2015. Please review your disk space usage in your home directory.

The “show_storage" script will execute upon logging into the Riptide system. PLEASE your usage in KB. If near or over 15GB, it’s time for some housekeeping. Move your data off site, to archive in $ARCHIVE_HOME or temporary data can be stored in your $WORKDIR, subject to daily purge. Enforcement WILL occur, don't get caught in a situation where you have no free space in your home directory.

A file system limit for the /gpfs/projects directory will be enforced. If your projects is approaching a threshold, the owner of the directory will be notified.

Thank you for assisting in this site wide effort. If you have any questions please contact the HPC Help Desk at 1-877-222-2038, help@helpdesk.hpc.mil

Thank you,
MHPCC User Services
Holiday Notice - Monday, May 25th, 2015
18 May 2015
On Monday, May 25th, 2015 MHPCC will be operating on a holiday schedule. The center will be open and all technology services will be available, however MHPCC will be operating at reduced staffing levels.

If you require assistance, onsite staff will be available to respond to Severity 1 Help Desk calls at 808-879-5077, and if necessary, MHPCC will contact other technical staff if needed. If you anticipate requiring any special assistance on May 25th, please contact our User Services department or the HPC Help Desk by email or by telephone.

Riptide & US Maintenance - Wednesday, May 27th, 2015
14 May 2015
MHPCC DSRC Preventive Maintenance (PM) for the IBM iDataPlex system RIPTIDE is scheduled for 0730 (HST) to 1700 (HST) Wednesday, May 27th, 2015 as posted on the MHPCC DSRC web site: http://mhpcc.hpc.mil/whats_new/

The primary focus of this outage is to perform software/security updates. User home directory quota of 15GB and /gpfs/projects directory quotas will be enforced starting May 27th, 2015. All PBS job functions will be unavailable during this maintenance period.

Users are invited to report problems and direct requests for unclassified assistance to the HPC Help Desk at 1-877-222-2039.

Thank You,
MHPCC User Services
MHPCC User Data Quota Enforcement - 15GB
06 May 2015
MHPCC will begin to enforce the 15GB home disk limitation on May 27, 2015. Please review your disk space usage in your home directory. Execute the “show_storage" script and review your usage in KB. If near or over 15GB, it’s time for some housekeeping. Move your data off site, to archive in $ARCHIVE_HOME or temporary data can be stored in your $WORKDIR, subject to daily purge. Enforcement will occur, don't be caught in a situation where you have no free space in your home directory.

A file system limit for the /gpfs/projects directory will be enforced. If your projects is approaching a threshold, the owner of the directory will be notified.

Thank you for assisting in this site wide effort. If you have any questions please contact the HPC Help Desk at 1-877-222-2038, help@helpdesk.hpc.mil

Thank you,
MHPCC User Services

Home » Accounts
Printable versionPrintable version

Resource Limits

Disk Limits and Usage

  1. Disk quotas in effect for all users
  2. Mass storage

    MHPCC provides virtually unlimited data storage to its Riptide users via the data archive system. The hostname of the archival system for each platform is available in the ARCHIVE_HOST environment variable. An individual user's directory on this system is available through the ARCHIVE_HOME environment variable. Please consult the online documentation for details on how to use the archive system.

  3. Temporary disk space

    There are several file systems available for temporary disk space:

    RIPTIDE

    Name Description Size Purge Policy
    /scratch Local and unique to each node. 30 Gbytes After each run
    See WORKDIR environment variable Global shared scratch 200 Tbytes Files older than 14 days are purged

  4. How you can help

    Disk usage will be periodically reviewed by MHPCC and if it is determined that any user is consuming an excessive amount of disk space, that user will be notified. For the most part, however, MHPCC encourages all of its users to practice "good neighbor" computing, keeping in mind that the system is shared by hundreds of other users and that disk resources are limited. Some practices which help all users include:

    • Always remove your files from public, shared disk space as soon as you no longer need them. This includes files in any of the scratch file systems.
    • Periodically "clean up" your home directory to remove old and unnecessary files.
    • Check with the MHPCC Help Desk () before installing software in your home directory which might be of general use to other users. In this way, MHPCC can install one version in a single location and prevent the waste of disk space that occurs when multiple versions are installed in various user home directories.

^ top