This is just a potentially interesting forwarded mail from the EVMS
mailing list to illustrate the kind of issues/responses to the raid5
resize questions...
David
osni@xxxxxxxxx wrote on 03/01/2005 09:16:51 AM:
I read in the evms user guide that it should be possible but I can't
seem
to find where to "add one object to the region". I'm using evms 2.5.2
gui...
/Oscar
Hi, Oscar.
If you are using evmsn or evmsgui you have to start the expand on the top
level volume, object, or container that consumes the raid5 region. For
example, if raid5 region md/md1 is made into EVMS volume /dev/evms/mydata,
then you would start by expanding /dev/evms/mydata. The UI will ask you
for an "expansion point" which is the object in the volume's stack that
you
want to expand. You should see md/md1 in the list of possible expansion
points provided there is a free object with enough space that can be added
to the array. Select the md/md1 regino to exapnd. You should then get a
prompt for the object to be added to md/md1.
Similarly, if md/md1 is consumed by an LVM container you would start by
expanding the LVM container. That operation, too, should give you a list
of possible expansion points. In this case you will usually see two
expansion points -- one for the container (you can expand a container by
adding another object to it) and one for the raid5 region.
If you are using the "evms" command line interface (CLI) you can use a
command like "expand:md/md1,sdc5". (I haven't tested that command. I
wrote it based on the help.)
Steve D.
Hi again and thanks for the answer.
It's resizeing now so I hope it works :) But someone should change in the
user guide where it says
"Like RAID-0, RAID-4/5 regions must be deactivated before they are resized."
That was the reason to why I couln't get it to work at first, if it's not
active it can't be resized.
/Oscar
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