[zfs-discuss] ZFS and Dinamic Stripe

2009-06-29 Thread Jose Luis Barquín Guerola
Hello.
I have a question about how ZFS works with Dinamic Stripe.

Well, start with the next situation:
  - 4 Disk of 100MB in stripe format under ZFS.
  - We use the stripe in a 75%, so we have free 100MB. (easy)

Well, we add a new disk of 100MB in the pool. So we have 200MB free but only 
100MB will have the speed of 4 disk and, the rest 100MB will have the speed of 
1 disk.

The questions are:
   - Have ZFS any kind of reorganization of the data in the stripe that change 
this situation and become in 200MB free with the speed of 5 disks?
   - If the answer is yes, how is it does? in the background?

Thanks for your time (and sorry for my english).

JLBG
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Re: [zfs-discuss] ZFS and Dinamic Stripe

2009-06-29 Thread Jose Luis Barquín Guerola
Thank you Relling and et151817 for your answers.

So just to end the post:

Relling supouse the next situation:
   One zpool in Dinamic Stripe with two disk, one of 100MB and the second 
with 200MB

if the spread is stochastic spreading of data across vdevs you will have the 
double of possibilities of   save one chunk in the second disk than in the 
first, right?

Thanks for your time (and sorry for my english).

JLBG
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