1 / 3

RCF Status

RCF Status. Events related to Mass Storage System (HPSS) and Tape Libraries Broken “hand” on a robot causing problems w/ access to a fraction of the cartridges PHENIX HPSS Data Mover problem Started on Monday w/ loss of a controller + 1 LUN All remaining LUNs failed over to second controller

aram
Télécharger la présentation

RCF Status

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. RCF Status • Events related to Mass Storage System (HPSS) and Tape Libraries • Broken “hand” on a robot causing problems w/ access to a fraction of the cartridges • PHENIX HPSS Data Mover problem • Started on Monday w/ loss of a controller + 1 LUN • All remaining LUNs failed over to second controller • Continued on Thursday when failed controller went offline again • Multiple disk failures, LUNs degraded but not lost • On Friday though failed controller was offline it interfered with production • All LUNs on system went offline • PHENIX lost ~700 files on the mover node but (according to Martin P.) all of them were still on the Buffer at the CH • Temporarily fixed the problem on Friday by replacing the failed PHENIX disk with ATLAS disk (including the controllers) • Load (at that time and expected over the WE) on the ATLAS system was only light • Replacement Controller arrived on Monday • System is being tested to verify problem was in failed controller

  2. Raw Data Volume collected & archived since 11/26/07 PHENIX Raw Data 470 TB STAR Raw Data 125 TB 01/14 11/26

  3. Results from Data Taking STAR PHENIX 500 Megabits/second 3 Gigabits/second STAR / RCF Network Links (2 * 1 Gbps max.) PHENIX / RCF Network Link (10 Gbps max.) Data Migration to Tape 1500 GB/hour

More Related