BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20121115T210000Z
DTEND:20121115T213000Z
LOCATION:255-EF
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Archival storage systems for scientific data have been growing in  both size and relevance over the past two decades, yet researchers  and system designers alike must rely on limited and obsolete  knowledge to guide archival management and design. To address this  issue, we analyzed three years of file-level activities from the  NCAR mass storage system, providing valuable insight into a  large-scale scientific archive with over 1600 users, tens of  millions of files, and petabytes of data.=0A=0AOur examination of system usage showed that, while  a subset of users were responsible for most of the activity, this activity was widely distributed at the file level. We also show that=0A the physical grouping of files and directories on media can improve archival storage system performance. Based on our observations, we provide suggestions and guidance for both future scientific archival system designs as well as improved tracing of archival activity.
SUMMARY:Usage Behavior of a Large-Scale Scientific Archive
PRIORITY:3
END:VEVENT
END:VCALENDAR
BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20121115T210000Z
DTEND:20121115T213000Z
LOCATION:255-EF
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Archival storage systems for scientific data have been growing in  both size and relevance over the past two decades, yet researchers  and system designers alike must rely on limited and obsolete  knowledge to guide archival management and design. To address this  issue, we analyzed three years of file-level activities from the  NCAR mass storage system, providing valuable insight into a  large-scale scientific archive with over 1600 users, tens of  millions of files, and petabytes of data.=0A=0AOur examination of system usage showed that, while  a subset of users were responsible for most of the activity, this activity was widely distributed at the file level. We also show that=0A the physical grouping of files and directories on media can improve archival storage system performance. Based on our observations, we provide suggestions and guidance for both future scientific archival system designs as well as improved tracing of archival activity.
SUMMARY:Usage Behavior of a Large-Scale Scientific Archive
PRIORITY:3
END:VEVENT
END:VCALENDAR