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Old 19th May 2011, 03:14 PM
multipitch Offline
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Join Date: Aug 2010
Location: Dublin, Ireland
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LUKS encryption on laptop SSD

I have a laptop (HP DM1-3100sa) and and SSD (OCZ Agility Series 3 60 GB) on order.
On my current laptop, I have a spinning HDD and use LVM and LUKS encryption.

I would like to use both LVM and LUKS on the SSD but from doing a bit of research I am not sure if this is desirable/possible.
It seems that LVM (most likely) and LUKS (possibly???) may prevent TRIM from working.

I can't find any concrete info on this and lots of the info on SSDs such as alignment etc seems to be out of date.

1) Is TRIM necessary?: The SSD has a SandForce 2281 controller. Will this provide adequate garbage collection without TRIM

2) If I need TRIM, will it work with LVM partitionis (I can live without LVM if needs be)

3) Will TRIM work with LUKS? Because a laptop may be prone to theft, I like to have my data properly encrypted so this is important to me
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encryption, luks, lvm, ssd

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