Being tempted by a nice 2.5" flash drive, I was wondering
whether using "nointegrity" as a mount option would mitigate
repeated writes to the journal area by disposing of the journal.

But it is not clear to me what "nointegrity" actually does, and
whether JFS will behave nicely with it. By nicely here I don't
mean quick restarts without 'fsck', I mean whether updates will
be done in a way that would minimize corruption of the filesystem.

One amusing aspect of flash drives is that not only is a journal
bad news (especially bad if written in chunks of less than 32KiB)
but they also should also make 'fsck' a lot faster (really small
access times).

I still value JFS anyhow because of features, stability and
things like indexing.

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