[Info-vax] RAID vs. MOUNT/BIND

[Phillip Helbig---undress to reply]

In article
<fd4f12db-3d80-418c-8387-e6281184f055 at fj16g2000vbb.googlegroups.com>,
Keith Lewis <spud_g00 at thundermaker.net> writes: 

> The big (and perhaps only) advantage to bound sets is that you can add
> a device to an existing volume or set whenever you need to.  No copy-
> and-wait step.  Almost full?  Just add another.

Right.  Also, no fancy hardware needed.

> I have no experience with host-based RAID except for shadowing.  If
> you know how big a set you want before you set it up, RAID 5 should
> theoretically give you both performance and redundancy.

True.  However, I like the advantage of shadowing that I have not only 
redundancy if a disk breaks, but also if a node hosting a disk breaks 
(and some performance improvement, at least on reads, as well).