Re: [zfs-discuss] What can I get with 2x250Gb ?

2009-11-08 Thread Bob Friesenhahn
On Sun, 8 Nov 2009, Wael Nasreddine (a.k.a eMxyzptlk) wrote: I'm sure this question has been asked many times already, but I couldn't find the answer myself. Anyway I have a laptop with 2 identical hard disks 250Gb each, I'm currently using Linux on RAID0 which gave me ~500Gb.. I'm planning t

Re: [zfs-discuss] What can I get with 2x250Gb ?

2009-11-08 Thread Wael Nasreddine (a.k.a eMxyzptlk)
Gotcha. Thank you. On Sun, Nov 8, 2009 at 16:42, Orvar Korvar wrote: > A zpool consists of vdevs (a group of discs). You can create a mirror of > your 250GB. And later you can add another group of discs to your zpool, on > the fly. Each group of discs should have redundancy, for instance, mirror

Re: [zfs-discuss] What can I get with 2x250Gb ?

2009-11-08 Thread Orvar Korvar
A zpool consists of vdevs (a group of discs). You can create a mirror of your 250GB. And later you can add another group of discs to your zpool, on the fly. Each group of discs should have redundancy, for instance, mirror, raidz1 or raidz2. So you can add vdev to a zpool on the fly, but you can

Re: [zfs-discuss] What can I get with 2x250Gb ?

2009-11-08 Thread Wael Nasreddine (a.k.a eMxyzptlk)
Since all my data are on this PC and I have many externals HDDs (around 3Tb) I think I'm gonna go with Mirrored setup, protect my data.. but out of curiosity, if someday I decide I want 500Gb, can mirrored setup be switched to single devs on the fly or a complete array rebuild is necessary? On Sun

Re: [zfs-discuss] What can I get with 2x250Gb ?

2009-11-08 Thread Alex Blewitt
If you want any kind of data guarantee, you need to go for a mirrored pool. If you don't want a data guarantee, you can create a single pool (non-mirrored) of the two devs which will give you 500Gb. The key is in the 'zpool create' command zpool create twofifty mirror disk1 disk2 zpool crea

[zfs-discuss] What can I get with 2x250Gb ?

2009-11-08 Thread Wael Nasreddine (a.k.a eMxyzptlk)
Hello, I'm sure this question has been asked many times already, but I couldn't find the answer myself. Anyway I have a laptop with 2 identical hard disks 250Gb each, I'm currently using Linux on RAID0 which gave me ~500Gb.. I'm planning to switch to FreeBSD but I want to know before I do, what c