Re: Wiping an unencrypted SSD in preparation for encryption
Hi.
On Fri, Jun 11, 2021 at 10:59:21AM -0400, Polyna-Maude Racicot-Summerside wrote:
> Because yes there's a cost and it's speed.
I call this cost acceptable:
# pv /dev/sda3 > /dev/zero
^C50GiB 0:00:04 [ 385MiB/s]
# cryptsetup status /dev/mapper/sda3_crypt
/dev/mapper/sda3_crypt is active and is in use.
type: LUKS1
cipher: aes-xts-plain64
keysize: 512 bits
key location: dm-crypt
device: /dev/sda3
# pv /dev/mapper/sda3_crypt > /dev/zero
^C68GiB 0:00:05 [ 372MiB/s]
Encryption costs me whopping 13 MB/s out of 385.
And note that it's a 4 years old laptop (and it was pretty cheap when I
bought it) with SSD surpassing its age.
Reco
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