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Author Topic: Difference in how formating an SD Card?  (Read 1064 times)
odoll
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« on: October 02, 2009, 08:06:54 AM »

All,

I want to have the (kernel and) filesystem running from an SD card. Beside keeping the logging volume low I was wondering if I have to care about e.g. the FS type and block size to maximise lifetime and IO performance.

So far I used ext2 for the kernel partition and ext3 for the FS, but didn't bother about fdisk chosing a block size matching the cards physics?

Lifetime is maybe not such important as (1GB) SDs are cheap anyway (having regular snapshops).
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DamonHD
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« Reply #1 on: October 02, 2009, 11:23:58 AM »

You might find this interesting:

http://thunk.org/tytso/blog/2009/02/20/aligning-filesystems-to-an-ssds-erase-block-size/

I used it for my USB flash drive but not for my SD card, and I used ext3 on both.

Rgds

Damon
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