====== BORG ======







===== FAST 09, Camera Ready Paper =====
 
  * 07/21/09: BORG on Argonne storage system discussion  {{{{internal:projects:borg:medha072109b.mp3|mp3}}  
  * 07/21/09: Medha defense practice talk  {{{{internal:projects:borg:medha072109a.mp3|mp3}} 
  * 07/02/09: Medha Thesis Intro chapter discussion  {{{{internal:projects:borg:medha070209.mp3|mp3}}  
  * 02/19/09: Medha FAST practice talk   {{{{internal:projects:borg:borg021909.mp3|mp3}}  
  * 12/16/08: Camera-ready version discussion   {{{{internal:projects:borg:borg121608.mp3|mp3}}  
  * 11/13/08: Discussion of To-Do List   {{{{internal:projects:borg:borg111208.mp3|mp3-part1}}  {{{{internal:projects:borg:borg2-111208.mp3|mp3-part2}}  



===== Open Questions =====
  * Are we measuring the foreground overhead of reconfiguration? How?
  * How are we changing the graphs in Figure 1 to make them smaller?

===== Modifications =====



===== TODO =====

  * Format paper according to FAST specifications.
    * Re-do EPS to include fonts.
  * Modify Figure 1 so is more visible.
  * Correct Figure 2.
  * State why we use throughput instead of response time.
  * Explain why we use 168x as acceleration factor.
  * Explain why it is OK to run 1x while reconfiguration is running.
  * Add a section of discussion where we address reviewers suggestions.
    * Events that trigger reconfiguration.
  * State what "certain threshold" means in section 4.3.
  * Change the name of OPT to be BOPT.
  * Add: When the size of the map in memory is prohibited, the size of the OPT should be reduced.
  * References:
    * Mac hfs' on-the-fly defragmentation.
    * Lumb et al. and Thereska et al.
  * Explain the indirector behavior when the write region is full and a new write request is issued.
  * Explain what values we take from blktrace.
  * Simplify Figures 6, 7, 10 and 11 to make them more readable.
  * Reduce the space used by referencing EXCES when possible.
  * Add more detail of traces in section 2.
  * Introduction in section 5.3.
  * Sort references.



===== TODO Email (From Luis to Ken) =====

Dear Ken,

Here is a list  of changes that we intend to make for the camera-ready version:

  - In the introduction, we will clarify the graphs in Figure 1 and possibly add additional graphs (space permitting) to clearly show details of workload characteristics.  
  - In Section 4, we will clarify certain sections to address the following reviewer questions:
    * Explain what values of trace data do we collect from blktrace?
    * What does "certain threshold" mean in section 4.3?
    * How does the indirector behave when the write region is full and a new write request is issued?
  - We will explain the relevance of section 5.3 to BORG.
  - In the evaluation section we will justify:
    * Why we chose throughput as our metric versus response time. 
    * Why we use 168X as acceleration factor in the non-reconfiguration phases and 1X in the reconfiguration phase.
    * Simplify Figures 6, 7, 10 and 11 to make them more readable.
  - Rename the acronym "OPT" to "BOPT" (for BORG OPtimized Target partition -- other suggestions are very welcome!)
  - Add the missing references:
    * Mac hfs' on-the-fly defragmentation.
    * Lumb et al. and Thereska et al. work on freeblock scheduling
    * EXCES, our previous work on external-caching
  - Certain reviewer comments require more discussion. We plan to address these in an additional section titled "Discussion" to appear before the Conclusion section:
    * What events should trigger reconfiguration? 
    * Alternative layout algorithms for the BOPT?
    * Is there a way for BORG to degrade performance gracefully?
  - Format the paper based on the FAST specifications 
  - Address the typos, sort references

Please let us know if you have additional suggestions for improving the camera-ready version. We will address these and (other suggested changes from you, if any) and send you a version within the next 3-4 weeks. 

If there is anything else you need from us, please let me know. I will be the contact author for this paper.

Luis' signature