> can I use any 2TB drive? Even the WD that lie about their sector size? > Speed is not really of any importance here.
Yes, you can. The WD will lie and say it's 512-byte sectors, and you'll get misaligned reads/writes and performance will suffer but it will work. > I also need another vdev to store my media backups. These are very large > files that take up a lot of space. It would be a bummer if I lost data here, > but all of the data is replaceable, it would just take time and effort. I am > thinking of RaidZ1 for this data. Are there any 2TB drives that will work > with ZFS presently? I am willing to take the risk that if I lost a single > disk, that they others wouldn't fail during the stress of a resilver. Write > speed doesn't matter to me. But I need read speeds to supply at least > 40mbit/second. I have 8GB of ram on this machine with usually 1 sometimes 2 > concurrent reads - so I think prefetch should take care of these read demands > regardless if the drive is green. So my question for this vdec is.. What is > the best 2TB drive available for a raidz1 configuration? Are the samsung F4s > a valid option or should I be looking at the seagates? I have pretty much > written off the WD due to the 4k/512 byte sector nonsense. The Hitachi 7K2000s are THE most foolproof, because they are pure 512-byte sector drives. No ifs, thens or buts. Seagates (at least the Barracuda LPs) utilize a tech called 'SmartAlign'; apparently it performs pretty well (taemun on the list has used both those drives and F4s). The F4s are 4K-sector drives as well, and I'm relatively certain they do some emulation goofiness. Safest option: 7K2000. Hopefully by the time you need to expand again, whether a drive is 4K or not should not matter anymore when it comes to ZFS. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
