Expanding ZFS Pool With vdev Stripe

[rndmnasusr]

Very noob question about setting up a small FreeNAS server for home use. I'm sure this has been answered before but I searched and read through a number of similar threads (as well as the FAQ presentation) and couldn't quite wrap my head around this.

I created a zpool with 1 vdev of 2x3TB drives mirrored, I then extended the zpool with another vdev of 2x2TB drives. When adding the second vdev I think I wanted to select the "mirror" option in the GUI (creating a RAID10 equivalent) but I selected "stripe" instead. I'm not sure, logically, what this setup looks like now. Is the data in the striped vdev just striped across those 2 drives, such that a hard drive failure in either of them would lose all the data on only those 2 drives? Or does this configuration mean that a failure in either of the 2TB drives will lose the data in the entire zpool?

Thanks for any help you can provide.

 

[Caesar]

I do not fully understand what you have created but I think you have 1 pool with 2 vdevs. vdev1 is a 2 drive mirror. vdev2 is a 2 drive stripe. keep in mind that if either vdev1 or vdev2 fails then so does your pool. That means that you can lose 1 drive from vdev1. losing any drive from vdev2 will lose the data in the entire pool also losing both drives in vdev1 will lose the data in the entire pool

 

[rndmnasusr]

Yep, that's exactly right and what I needed to know. So I'll blow away the entire zpool and start from scratch creating 2 vdevs of mirrored drives (the original intent).

Thanks for the quick reply, Caesar.