[BBLISA] ZFS Anyone?

[Jurvis LaSalle]

On Apr 4, 2009, at 12:28 AM, Edward Ned Harvey wrote:

> I'm really not sure why anyone uses raid5, raid6, raidDP, raidz, or  
> raidz2
> anymore.  I suppose it is a little cheaper ... Get the capacity of 7  
> or 8
> disks when you purchased 10 ...  I'm heavily gravitated toward  
> mirroring.
> What many people (not quite accurately) call raid 10 ... Also not  
> accurately
> called stripe of mirrors ... More accurately, a concatenation of  
> mirrors.
> Get the capacity of 5 disks when you bought 11 (assuming you  
> dedicate a
> hotspare).

wouldn't a concatenation of mirrors imply that you write sequentially  
to a mirror until full before using the next mirror?  where's the  
benefit in that?  io to my raid10 is striped thank you very much.

as to why people would use other raid levels: sometimes you need  
performance, sometimes space, sometimes redundancy.  I'm grateful for  
the plethora of raid levels at my disposal jefe.