> > What's the best option for RAID in Plan9? I understand I can use > > either Ken's fileserver or the Plan9 '#k' device. > > note that neither of these are RAID in the way most people expect. failure > notification, in particular, can be lacking, and they're more restricted in > what > they try to do that many RAID systems. that said, I've used #k quite happily > for > years with no issues (and periodic correctness checks).
the way we use ken's file server is to connect it to aoe storage which internally provides raid. in fact, we use the properties of the mirrors in the file server to provide off site backup. since the mirror always reads from the first element which is very close, and since writes are always done in the background and have no user impact, the mirror doesn't change user-visable performance at all. - erik
