[zfs-discuss] One dataset per user?

Roy Sigurd Karlsbakk
2010-06-21T11:48:44Z

----- Original Message -----
> On Jun 21, 2010, at 05:00, Roy Sigurd Karlsbakk wrote:
>
> > So far the plan is to keep it in one pool for design and
> > administration simplicity. Why would you want to split up (net) 40TB
> > into more pools? Seems to me that''ll mess up things a bit,
having to
> > split up SSDs for use on different pools, loosing the flexibility of
> > a common pool etc. Why?
>
> If different groups or areas have different I/O characteristics for
> one. If in one case (users) you want responsiveness, you could go with
> striped-mirrors. However, if departments have lots of data, it may be
> worthwhile to put it on a RAID-Z pool for better storage efficiency.

We have considered RAID-1+0 and concluded with no current needs for this, as of
now. Close to 1TB SSD cache will also help to boost read speeds, so I think it
will be sufficient, at least for now. About different I/O characteristics in
different groups/areas, this is not something we have data on for  now. Do you
know a good way to check this? The data is located on two different zpools
(sol10) today.

Vennlige hilsener / Best regards

roy
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Roy Sigurd Karlsbakk
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