[olug] MAX_LUNS: Caveat about selling Linux for SAN to "the management"

[Bill Brush]

On 1/18/07, swanpoint at cox.net <swanpoint at cox.net> wrote:
>
> With Symmetrix there is a lot of disks too be partitioned into a whole lot of LUN. We're using 4 GB and 8 GB sizes for our LUN's; so the numbers increment quickly. There can be 256+ LUN's behind a FA port (on the Symmetrix end). Not all LUN's are mapped to the same server; but, if the LUN index is greater than 255, no good.
>

Maybe I'm slow, or maybe I'm not sufficiently familiar with the Sym
line of SAN's (we use Xiotech), but  why would you use such small
LUNs?   On a decent sized array that's going to lead to a scad of
teeny tiny stripes which probably are not going to be conducive to
good write performance.

Bill