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

[Matt Wilby]

On 05/02/2011 11:28, Basil Kurian wrote:
> Here we are running backup servers only during business hours (web
> development firm). At the end of day , Sometimes the servers are powered
> off  , without issuing any commands to shutdown them cleanly.
>
> On 5 February 2011 16:45, Matt Wilby <matthewwilby at btinternet.com> wrote:
>
>> 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
>>
>>
>>
>> _______________________________________________
>> OpenIndiana-discuss mailing list
>> OpenIndiana-discuss at openindiana.org
>> http://openindiana.org/mailman/listinfo/openindiana-discuss
>>
>
>

I don't understand why you would ever want to shut a server down in this
way.

Can't you just setup a cron to shut them down at a certain time?