[OpenIndiana-discuss] About zpools and usage plan

[David Scharbach]

I use Raid-Z2 for my main array.  6 disks would give you effectively 4 disks usable with the ability to tolerate ANY 2 disk failures.  Mirroring would allow for 3 disk failures ONLY if the failures were in different sets, if I understand mirroring correctly.  There is a risk that the right 2 failures could cause the entire array to be pooched.

Regardless, BACKUP you data regularly.  Do not rely on your production to keep data safe.  I have 2 arrays in my server, an 8 disk RaidZ2 and a 4 disk simple array.  I was to lame to figure out replication so I fell back on an rsync script to ensure my data is in two places.  In a perfect world, I would have it in 2 different physical boxes in different locations but anything of real value is also stored in the cloud (Wuala).

Cheers,

On 2013-08-02, at 9:08 PM, Harry Putnam <reader at newsguy.com> wrote:

> Looking for a little advice about setting up a home lan server.
> 
> So far just tinkering with a vbox oi as guest install hoping to make
> whatever nasty blunders on disposable data and OS.
> 
> But getting right to it:
> 
> In a previous life I ran oi and used mirrored sets of discs for
> everthing. 
> 
> Mirrored OS discs, and 2 sets of mirrored data discs.
> 
> I was advised back then that mirrored sets of discs, given  my small
> usage, would be the most secure (not meaning agains penitration or the
> like...just keeping data from loss) and handiest way to handle my home
> lan.
> 
> So, wondering what the current thinking is?  Like say, mirrored as
> opposed to a collection of discs in raidz or whatever its called.
> 
> My needs will be well handled by something like 3tb of storage so
> something like 6 1tb discs for a mirrored setup.
> 
> What else could I get with those 6 disks in terms of redundancy and ease
> of maintenance?
> 
> 
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