Summary: Boot disk mirror using SVM

Thanks for all the answers ( metadevices is a hot topic in Solaris gurus
fields)

Problem: Fresh install of Solaris 10 on V440 (2 x 72GB FC-AL). Slice for
metadb was not present, not free space, while using format came across
"partition mounted" type of errors (even in single user mode).

Solution:

I. V440 has raid controler, it's straightforward to use it via: raidctl
( man option -c). Note that HW mirroring is MUCH better than Software
one. Always count on HW mirroring if present.

II. Got one answer that claims Solaris 10 made a bit change that
requires, even in single usermode with partition unmounted, to exclude
partition intented to be reduced out of /etc/vstab. There is also a
shell variable you set via export ( sorry, I delete the e-mail ).

So, let's say I want to get some extra space out of /export, I go to
single usermount, umount /export, vi /etc/fstab, comment /export entry,
format, par, p, and then add new slice ( FYI: s7 is usually used to
metadb by Sun practices). Also, remmber to metadb -a -f -c 3
/dev/dsk/cXtXdXsX

III. ufsdump/ufsrestore the current partitions to c1t1 and boot from
there, then repartition c1t0.


Thanks again, as usual, sunmanagers is a true source of expertise and
knowledge.

fabio.
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