On Tue, Apr 20, 2010 at 03:48:23PM -0400, Ted Unangst wrote: > On Tue, Apr 20, 2010 at 3:11 PM, Marco Peereboom <sl...@peereboom.us> wrote: > >>> And no, TRIM isn't supported. > > >> The problem is that we're copying the entire disk, so, as far as the disk > >> (i.e., SSDs) is aware, that disk is 100% full-- all blocks are marked as > >> used even if they're empty. If I understand correctly, how the > >> controller handles block reallocation in this scenario depends how it is > > > You are. The whole not write so often is really really really > > uninteresting. > > It's not about writing too often, it's about the performance hit doing > a read/modify/write when there's no free blocks. Like the 4k sector > problem, but potentially even worse. > > On the other hand, it depends on how much writing your server will do > in service. If you aren't writing large files, you won't notice much > difference, and the benefit of ultra fast random access is more than > worth it.
I am 100% unconvinced.
