Re: [zfs-discuss] reccomended disk configuration

2007-09-17 Thread Richard Elling
Mario Goebbels wrote: >> Hi, thanks for the tips. I currently using a 2 disk raidz configuration and >> it seems to work fine, but I'll probably take your advice and use mirrors >> because I'm finding the raidz a bit slow. > > What? How would a two disk RAID-Z work, anyway? A three disk RAID-Z

Re: [zfs-discuss] reccomended disk configuration

2007-09-17 Thread Peter Schuller
> I also wanted to test a recovery of my pool, so my took two disk raidz pool > onto a friends freebsd box. It seems both systems use zfs version 6, but the > import failed. I noticed on the boot logs: > > GEOM: ad6: corrupt or invalid GPT detected. > GEOM: ad6: GPT rejected -- may not be reco

Re: [zfs-discuss] reccomended disk configuration

2007-09-15 Thread Wee Yeh Tan
On 9/15/07, Peter Bridge <[EMAIL PROTECTED]> wrote: > I have: > 2x150GB SATA ii disks > 2x500GB SATA ii disks I will go with a mirror. You need at least 500GB in parity anyway (since you want to survive any disk failure). That means the maximum you can get out of this setup is 800GB. With a mir

Re: [zfs-discuss] reccomended disk configuration

2007-09-15 Thread Wee Yeh Tan
On 9/15/07, Mario Goebbels <[EMAIL PROTECTED]> wrote: > You can't create a RAID-Z out of two disks. You either have to go with > two mirrors (150GB and 500GB) in a pool, or the funkier variation of a > RAID-Z and mirror (4x150GB and a 350GB mirror). Actually, you can. It may not make sense but it

Re: [zfs-discuss] reccomended disk configuration

2007-09-15 Thread Mario Goebbels
> Hi, thanks for the tips. I currently using a 2 disk raidz configuration and > it seems to work fine, but I'll probably take your advice and use mirrors > because I'm finding the raidz a bit slow. What? How would a two disk RAID-Z work, anyway? A three disk RAID-Z missing a disk? 50% of the to

Re: [zfs-discuss] reccomended disk configuration

2007-09-15 Thread Mario Goebbels
> I have: > 2x150GB SATA ii disks > 2x500GB SATA ii disks > > Is it possible/recommended to have something like a pool of two raidz pools. > This will hopefully maximize my storage space compared to mirrors, and still > give me self healing yes? You can't create a RAID-Z out of two disks. You

[zfs-discuss] reccomended disk configuration

2007-09-15 Thread Peter Bridge
Hi All, Thanks for the recent info on my controller problems. So now I'm taking a different approach but had a more basic question. I have: 2x150GB SATA ii disks 2x500GB SATA ii disks Is it possible/recommended to have something like a pool of two raidz pools. This will hopefully maximize my