Re: SSA disk layout question
- From: Roger Deschner <rogerd@xxxxxxx>
- Date: Fri, 15 Sep 2006 23:25:56 -0500
I'd say as long as you keep good documentation and keep it straight
without getting yourself confused, don't bother. There is not much
performance difference, as long as the distance (measured in number of
devices) does not get too huge.
Roger Deschner University of Illinois at Chicago rogerd@xxxxxxx
"No one may throw an old computer across the street at their neighbor."
-- city ordinance, Warsaw, Indiana
On Fri, 15 Sep 2006, Mark Schlechte wrote:
time as disk gets shuffled from one server to another the disks assigned
I have a 4 SSA disk drawers (no raid) shared between 5 servers and over
to a server are not next to each other (ie. disks in drive bay 1, 5 & 6
are assigned to one server while disks 2,3 & 7,8 are assigned to another
server for example). The question is should I take the time to move
those disks together (I guess it depends on IO load I'm seeing now and
if that's an issue or not)? I know ideally they would be in the proper
location depending on where the ssa cable connects also. I was thinking
of doing some migratepv stuff by using an unassigned disk but that's
kind of time consuming so I was thinking a physical drive bay swap is
probably the fastest way of doing this during a downtime. I guess the
real question is should I bother and if I do am I missing anything if i
think I can just swap the drives around without any problems. I know
I'll have some diocumentation to update to show what hdisks are assigned
to which servers... MS
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