Thread: [Extundelete-users] extundelete on SSDs
Status: Beta
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From: <ext...@li...> - 2013-11-11 15:23:29
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Hi all I have an SSD mounted with the "discard" option; which I understand means TRIM commands are supported by the SSD. My questions are: - can extundelete recover deleted files on an SSD when discard (TRIM) is *disabled*? my feeling is that this does not reliably work because of the FTL: fs journaling system is only aware of the "logical" blocks, not the physical ones. When extundelete tries to read a block, it points to a "new" physical block where the file content is inaccessible. The file content might still be in the old "physical" block but how can we read it? - can extundelete recover deleted files on an SSD when discard (TRIM) is *enabled* (my case)? certainly no, because TRIM will zero the physical block. Thanks for time and answer. Wasa |