our company provides backup service for a client runnig Informix-online v6(?)
on RS/6000 950 with AIX v3.2. we have little knowledge on AIX and none on
Informix. here is the question:
with every physical disk, the client create a volume group and then partition
the volume group into logical volumes of certain sizes. some of these logical
volumes will be used as raw disks for storing informix database.
because the disks size of our machine are different from their disks and
our total disk space is less than theirs, to save space, we want to group
all our disks into a large volume group and then partition it into logical
volumes efficently. for each informix volume , we will create a logical
vulume with exactly the same size and name as that on the client machine.
When restoring database from informix-format backup tapes, will there be
any problem? we were told by the client that informix bypass AIX's logical
volume manager and access the disk directly . Therefore, the approach will
not work once the disk gemotry is changed.
I don't believe informix is that stupid and inflexible. if this is true,
we will be in big trouble. please advise me on this.