> From: Stephan Budach [mailto:stephan.bud...@jvm.de] > > Point taken! > > So, what would you suggest, if I wanted to create really big pools? Say > in the 100 TB range? That would be quite a number of single drives > then, especially when you want to go with zpool raid-1.
You have a lot of disks. You either tell the hardware to manage a lot of disks, and then tell ZFS to manage a single device, and you take unnecessary risk and performance degradation for no apparent reason ... Or you tell ZFS to manage a lot of disks. Either way, you have a lot of disks that need to be managed by something. Why would you want to make that hardware instead of ZFS? For 100TB ... I suppose you have 2TB disks. I suppose you have 12 buses. I would make a raidz1 using 1 disk from bus0, bus1, ... bus5. I would make another raidz1 vdev using a disk from bus6, bus7, ... bus11. And so forth. Then, even if you lose a whole bus, you still haven't lost your pool. Each raidz1 vdev would be 6 disks with a capacity of 5, so you would have a total of 10 vdev's and that means 5 disks on each bus. Or do whatever you want. The point is yes, give all the individual disks to ZFS. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
