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12 views

How to shrink encrypted lvm? [duplicate]

I have a LV. on top of LV there is a luks volume and on top of luks there is an ext4. I already shrunk the ext4 and now i don't know how to correctly shrink luks and LV not to loose any data. how to ...
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2answers
237 views

Does dm-crypt support journaling filesystem transactional guarantees?

I'm considering using ext4 on encrypted LVM (which uses LUKS and dm-crypt). Will the transactional guarantees in ext4's journaling be preserved? Bonus: where may I find authoritative information ...
2
votes
2answers
1k views

Clarifications on encrypted LVM in Ubuntu, RAID1, and headless server

I’ve pondered about encrypting my hard disk on my laptop and server for quite some time, but never got around to it since I don’t think I understand how encryption affects my day to day usage and the ...
3
votes
1answer
1k views

Very slow write performance on Debian 6.0 (AMD64) with DMCRYPT/LVM/RAID1

I'm seeing very strange performance characteristics on one of my servers. This server is running a simple two-disk software-RAID1 setup with LVM spanning /dev/md0. One of the logical volumes ...