[OpenIndiana-discuss] Need thoughts on OpenIndiana+ZFS for backup server

[Matt Wilby]

On 05/02/2011 10:53, Basil Kurian wrote:
> Hi all
>
>
> Currently in our company we are having a Dragonfly BSD backup server with
> Hammer filesystem in it. One senior system administrator in our compay chose
> Hammer filesystem some times back, because Hammer filesystem can easily
> recover in times of power failures. I 'm compelling him to move to ZFS (on
> FreeBSD or OpenIndiana). How durable is data on an ZFS pool (RAID or mirror)
> when  power failure happen frequently.
>

Hi,

I use ZFS on my backup servers. I can't say we've ever had power
failures because they're in a datacenter, but I would invest in a decent
UPS if it's a regular occurrence. Hard drives don't generally like
having power suddenly removed.....

ZFS on OpenIndiana will give you nice features like file system
compression, dedupe, snapshots and constant checksumming of of in-use
blocks.

I've never used Hammer before, but HammerFS doesn't appear to offer
compression yet.

Just my opinion, but I'd say ZFS is more widely used than Hammer.

Matt