BBLISA was founded in July 1992 to provide a forum for meetings and presentations of interest to system and network administrators in Boston, MA, and the surrounding areas.

While "LISA" stands for Large Installation System Administration, BBLISA is for administrators of both large and small networks.

Membership in the group is free and becoming a member is as easy as subscribing to one of our mailing lists.

The name Back Bay LISA was adopted after the sister organization "Bay LISA", in the San Francisco bay area. Back Bay is an area of Boston, and Boston being back east and also on a bay made the name seem appropriate.

We have a list of sites that are of interest to System Administrators.

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Upcoming Meeting

Wednesday, April 13, 2016

Evaluating Distributed File System Performance

Jeff Darcy

The first part of this talk will cover general issues such as the effect of different workloads, measurement pitfalls, and common cheats used by storage vendors. The second part will introduce common tools such as fio and IOzone to measure storage performance.

In the third part, Jeff will demonstrate how to set up and test a popular distributed file systems using these tools, and how to analyze results. Most importantly, attendees will learn to recognize anomalies in their own tests, or misleading results from others', so that they can get an accurate picture of each system's capabilities and limitations.

Jeff Darcy has been working on distributed storage since 1989, when that meant DECnet and NFSv2. Since then he has played a significant role in the development of clustered file systems, continuous data protection, and other areas. He is currently a developer at Red Hat, with the rare opportunity to work on two open-source distributed file systems - GlusterFS and Ceph - at once.

Tenative MIT E-51, Room 145
7:00 - Announcements & Introductions
7:30 - Formal presentation

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BBLISA is a LOPSA local chapter. LOPSA is the League of Professional System Administrators.
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LISA is a Special Interest Group of USENIX, the Advanced Computing Systems Association.
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BBLISA is a member of Boston User Groups, a centralized home for local technical user groups.

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