working hardware configurations for raidz1/2/3?

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working hardware configurations for raidz1/2/3?

Post by engineer » Thu Nov 29, 2012 6:52 am

I am looking for working raidz hardware configurations on a Mac, ie what configurations of Macs and disks do work used as a raidz1/2/3 pool.

Background of this question are configurations that only partly work, such as my attempt to use three LaCie 2big Thunderbolt disks (each of which contains 2 disks) connected via Thunderbolt to a MacBook Pro Retina. I reliably get crashes ejecting, disconnecting and reconnecting the disks. A similar setup with USB3 in a tower case had similar crashes.

Wondering what does work. Eg a MacPro with three internal disks used in a raidz1 configuration (since the disks are only switched off on power down)? A Mac Pro with external USB3 disks? Anything that only gets connected and disconnected when the system is shut down?

What has worked ever since I began using Zevo is a single external USB hard disk formatted with ZFS and being used for TimeMachine backups, even ejecting/disconnecting/reconnecting.
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Re: working hardware configurations for raidz1/2/3?

Post by GregB » Fri Dec 07, 2012 10:55 am

Are there any data points on what thing work and what does not work?

I would think the fine folks at Greenbytes have a few disks that plug and unplug. With iMacs and laptops getting more powerful, it would really be nice to have storage that plugs and unplugs and works with zfs. With that in mind, can anybody comment and provide specific hardware on what works and what doesn't work?

1. Any vdevs made from multiple usb disks ?

2. Any vdevs made from multiple firewire disks?

3. Any vdevs made from multiple thunderbolt disks?

Not working is an important data point as well as working setups.

Thanks,
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thoughts and links

Post by grahamperrin » Fri Dec 07, 2012 10:00 pm

GregB wrote:… Not working …


If we can, please: no more than one problem per topic.

Discussion of any problem can be unexpectedly protracted. viewtopic.php?p=601#p601 for an example of a problem with RAID-Z2 on areca 1300 controller … in the midst of a five-page topic that culminated in a fix for something that was very difficult for developers of ZEVO to track down. A less focused topic might have increased the difficulty.

Thanks
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