SMART data on an encrypted hard drive?
I have a Sandisk 64GB SSD upon which I have created an encrypted partition using cryptsetup and luksOpen (CentOS 6). It works fine for its intended purpose; it is not a boot drive.
I happened to look at the entry for this disk in Disk Utility (palimpsest) which told me "Disk is healthy" which is good. I then had a look at the SMART data. The only Attribute which had an "Assessment" was "Endurance Remaining" which is shown a Good. The rest of the Attributes show "N/A" I have a Crucial SSD as my boot drive. It has "Good" shown in the Assessment column for most Attributes.
So I am wondering if the explanation for this has to do with the encryption or if it has to do with the model of SSD. I cannot reformat the Sandisk SSD to non-encrypted right now so I cannot determine this experimentally. I will do so some day when I upgrade the drive.
Can anyone offer any insight?
TIA,
Ken
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