We took denali down for 11 of the 12 hours scheduled for downtime on Sunday in order to complete a major upgrade to the robotic tape silo's hardware. Denali continues to host the silo, but Chilkoot is poised to take over. Eventually, this volume should reach 100 TBytes. Many ARSC staff members, in addition to the system administrators, now have active logins, and we have been testing various components of the system.
Testing includes user codes.
Send us e-mail to discuss the possibility of adding your code to the test suite. After the switch, the system will not permit any user process to write data that would exceed the user's quota. The silo upgrade was transparent to users. As mentioned in the last bulletin, however, we moved a number of less-recently used tapes from the robotic silo to the library. If you have any questions or concerns, please contact ARSC User Services Consulting.