From: Howard E. Arnold (arnoldh@celerent.com)
Date: Tue Oct 08 2002 - 10:03:49 EDT
We just got in a EVA 2C6D-B which will be connected to two DS25E's. I have a
couple of questions about the configuration of the box as it came in.
1) I have read through most of the manuals and I can't seem to find anything
about the disk placement in the disk shelves. The shelves were configured
with 8 disk in each starting in Bay location 4 going to 11. My question, can
I move the disks to start in Bay location 1 and go to 8 and would the
performance be the same. I know with the EMA12000 and the split shelves you
would want to do something like this, but on these shelves I don't think
this matters.
2) This configuration came in with four San switches in the cab to connect
the disk shelves and the controllers. Does it matter where the fiber cables
get plugged into? Right now it looks like they are just plugged into any
port randomly, but I would like to move them so that they are more logically
placed. Does anyone see a problem with doing this?
I'm asking these question because I don't want a support person to come in
and ask why I moved everything around and that is the reason it's not
running correctly.
I have one other question concerning the configuration of Disk Groups versus
Virtual Disk folders. Does it make any sense to create multiple Disk Groups
or add all the disks into one disk group and then create virtual folders for
the different classification of disks. My though was to create one Disk
Group for the OS disk and then one for the Oracle Database, but to have 8 36
gig drives in the OS disk group seem to be a lot of over kill so I'm now
thinking of creating one large disk group with all the disk and creating
folders for the different classification of disk.
Thanks,
Howard Arnold
Consultant Engineer
Email: arnoldh@celerent.com
Phone: (603)685-6060 ext 206
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