[geeks] Cheap Dell Servers

[Sandwich Maker]

" From: Sridhar Ayengar <ploopster at gmail.com>
" 
" der Mouse wrote:
" 
" > What it does use the geometry for is attempts to compensate for
" > head-switch delay, rotational latency, seek times, and the like.
" > Things like ZBR, track caches, and drive-level reordering of requests
" > invalidate most of the assumptions underlying these attempts anyway.
" 
" Yes, it uses it for all of those things, to optimize placement of new 
" allocations to the proper cylinder groups, no?

yeah, but with zbr...

in the disks i know about, all the zones have the same number of
cylinders.  suppose you make your fs cg size this same number?  you're
screwed [for fs optimization], because your fs label can only assume
all cgs are the same size, but the zones aren't.  there's no way to
set sectors/track cg-by-cg, only for the whole disk.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought