[tahoe-dev] Tahoe on NAS drives

Humberto Ortiz-Zuazaga humberto at hpcf.upr.edu
Sun Aug 2 10:46:55 UTC 2009


I have a Linksys NSLU2, here's the memory:

-bash-3.2$ free
              total       used       free     shared    buffers     cached
Mem:         30520      29828        692          0       8616       7288
-/+ buffers/cache:      13924      16596
Swap:       112440      13844      98596

32MB RAM in the device. It has a hard time compiling the prerequisites 
for tahoe. Plus it's an ARM processor, so it didn't work right.

Shawn Willden wrote:
> On Saturday 01 August 2009 10:46:26 am Jan-Benedict Glaw wrote:
>> Sure--that's another possibility. Examples in this group are the
>> Buffalo NAS products, NSLU2, ...
>>
>> However, keep in mind that they typically have quite limitd RAM, so
>> letting them do erasure-encoding on large files will be a pain at
>> least. Maybe a helper node might be of use here...
> 
> What does "limited" mean?  Tahoe doesn't actually require all that much, by 
> modern standards.  Large files are processed in segments.  I have a Linux 
> Virtual Server which I'm using as a helper node, and it only has 512 MiB 
> total (hard limit, no swap), over half of which is being used by other stuff.  
> Hasn't been an issue.  When I asked if it would be, Brian (IIRC) said that 
> Tahoe's working set size is around 40 MiB.
> 
> 	Shawn.
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-- 
Humberto Ortiz Zuazaga
Programmer-Archaeologist
High Performance Computing facility
University of Puerto Rico
http://www.hpcf.upr.edu/~humberto/



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