[tahoe-dev] Tahoe on NAS drives

Zooko Wilcox-O'Hearn zooko at zooko.com
Sun Aug 2 13:26:10 UTC 2009


On Sunday,2009-08-02, at 4:46 , Humberto Ortiz-Zuazaga wrote:

> 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.

The current version works right on ARM.

I guess 32 MiB RAM might be too little, based on my experiment which  
showed 54 MiB of RAM was needed to run a storage server (although  
that experiment was on an x86 laptop -- maybe it requires less RAM on  
the Debian armel architecture).  Certainly Tahoe-LAFS worked fine on  
Zandr's 128-MiB ARM NAS box for a while, but then that box broke and  
is currently unable to boot.

There was a bug in Crypto++ v5.5 such that it computed AES  
incorrectly on ARM CPUs, but that has been fixed (either by upgrading  
to Crypto++ v5.6.0 or by building pycryptopp to use its own embedded  
copy of Crypto++).  After that was fixed, the unit tests passed on  
Zandr's box and I used Zandr's box as my web gateway to upload and  
downloading files and view directories.

François Deppierraz also contributed an ARM-based system to serve as  
a Tahoe-LAFS buildbot.

Regards,

Zooko


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