Oldwiki.scinet.utoronto.ca:System Alerts

System Status

GPC	TCS	Sandy	File System
Gravity	P7	Viz	BGQ	HPSS

Mar 3, 1:00 PM: Limited operations

HPSS system out of space - Upgrade of the tape library

Our apologies for this inconvenience. Our HPSS is completely full, and ingestion operations are suspended until further notice. A planned expansion and upgrade of our tape library is in process, and we expect it to be completed within about 3 weeks. This will substantially increase the capacity and capability of the library, eventually reaching about 25 PB of capacity using the latest LTO7 tape technology. We have the new hardware (expansion cabinet, new LTO7 tape drives) on site, and we will post updates about the installation on this wiki. Tapes are also on order.

During this time you may still recall or delete material - except when the library is down for actual expansion. Notifications will be posted here.

Thu Feb 18 20:36:25 EST 2016 BGQ scratch is back online. Some jobs were killed.

Thu Feb 18, 8:13 PM: The scratch file system on the BGQ is having problems. We're investigating.

Jan 15, 11:20 AM: Systems are in the process of being brought online.

Jan 14, 3:30 PM: Downtime extended to noon on Friday Jan 15th (estimate).

Our sincere apologies for this extension of the downtime. Unfortunately, a problem has come to light with some of the disks in the file system. Because of the way the file system is set up, no data is lost, but if we put the system back into production now, a single additional failure would run the risks of data loss or corruption, so this needs to be fixed now.

The BGQ file system hasn't suffered from this and may be brought up earlier.

Updates will be posted here.

Note: Because of the downtime, we'll be deferring the scratch purging that was scheduled for January 15th to Wednesday January 20th.

Jan 13, 7:00 AM: Downtime in effect.

SCHEDULED MAINTENANCE DOWNTIME ANNOUNCEMENT

There will be a full SciNet shutdown from January 13th to January 14th, 2016 for scheduled annual maintenance.

All systems will go down at 7 AM on Wednesday January 13th; all login sessions and jobs will be killed at that time.