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LUKS + LVM on USB hard disk on Raspberry Pi?
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XavierMiller
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PostPosted: Wed Apr 23, 2014 6:18 pm    Post subject: LUKS + LVM on USB hard disk on Raspberry Pi? Reply with quote

Hello,

I run a little file + print server on a raspberry pi (version 1, 256Mo), the system is on a USB hard disk.

I use encrypted disks on my laptops using LUKS and LVM, and I would like to encrypt all my hard drives, including this for the Raspberry Pi.

Would the LUKS + LVM slow down the system? I could only encrypt the NAS partition if it could be a bottleneck for the system.
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frostschutz
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PostPosted: Thu Apr 24, 2014 10:23 am    Post subject: Re: LUKS + LVM on USB hard disk on Raspberry Pi? Reply with quote

XavierMiller wrote:
Would the LUKS + LVM slow down the system?


It will be dead slow. Run 'cryptsetup benchmark' to find out how bad exactly - the speeds you see there will be better than the ones you actually get with real I/O.

For the system itself, provided it has enough RAM, it would not have much of an effect but any disk I/O will be a crawl.
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XavierMiller
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PostPosted: Thu Apr 24, 2014 10:28 am    Post subject: Reply with quote

It doesn't have so much RAM : 256 Mo.
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