Hot plugging would be good, but a rotating mirrors backup (this
is similar to what Auspex has been known to do) really
doesn't solve your static/consistent locking problem.
You need to perform locking at the file level, if not block level.
A lot of backup packages will do this, with greater or lesser
success.
On Mon, 2 Nov 1998, Jorj Bauer wrote:
> (My apologies if this is already possible and I've missed it, but...)
>
> Are there any plans for the ability to add and remove mirrors on the fly?
>
> I can think of one particular situation where this would be exceptionally
> useful. On a busy mail machine, it's difficult to get a static backup of
> the contents of /var/spool/mail. If the raid tools supported the ability
> to add and remove mirrors on the fly, one could have a redundant (third)
> mirror which is detached nightly, mounted as a standalone filesystem
> elsewhere, backed up, unmounted, and reattached to the /var/spool/mail
> mirror.
>
> The rest of the raid package seems fairly thorough; this is the only
> serious feature that I see missing. Or that I just don't see.
>
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> Jorj Bauer | [EMAIL PROTECTED]
> Systems Programmer / Network Specialist | 200 S. 33rd St.
> School of Engineering and Applied Science | Moore Building, Room 164
> University of Pennsylvania | Philadelphia, PA 19104
> http://binky.seas.upenn.edu/~jorj | O: 215/898-0575 F: 215/898-1195
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