[ale] ZFS on Linux

dev null zero two dev.null.02 at gmail.com
Fri Mar 29 22:41:25 EDT 2013


rainbow tables ofc :-)

what sort of case are you using for that many hdds?

Sent from my mobile. Please excuse the brevity, spelling, and punctuation.
On Mar 29, 2013 10:36 PM, "David Tomaschik" <david at systemoverlord.com>
wrote:

> I can only imagine the power bill for 20-30 hard drives & all the
> controllers and CPU needed to spin that all up.  (And unfortunately, I have
> good guesses as to what its used for.)
>
>
> On Fri, Mar 29, 2013 at 3:13 PM, gcs8 <gcsviii at gmail.com> wrote:
>
>> i run raidz2, if i could chang anything it would be adding SSD caching
>> and dual SSD ZIL.
>>
>>
>> On Fri, Mar 29, 2013 at 5:07 PM, Jim Kinney <jim.kinney at gmail.com> wrote:
>>
>>> That sounds encouraging. I'll have probably 2 arrays. One with 15 1TB
>>> data and a 2nd with 16 4TB SAS2. thinking raidz with a spare drive for each.
>>>  On Mar 29, 2013 4:43 PM, "gcs8" <gcsviii at gmail.com> wrote:
>>>
>>>> I run a 20 2TB disk array at home and have rather fond of ZFS, its been
>>>> stable for me for ~3 years now.
>>>>
>>>>
>>>> On Fri, Mar 29, 2013 at 3:10 PM, Ed Cashin <ecashin at noserose.net>wrote:
>>>>
>>>>> Thanks in advance for the notes you take.  I'm interested to hear what
>>>>> you find.
>>>>>
>>>>> By the way, work sent me to a Nexenta course in 2010 where I learned
>>>>> ZFS stuff from Richard Elling:
>>>>>
>>>>>   http://www.richardelling.com/
>>>>>
>>>>> ... and one thing that kept coming up is how users usually reach for
>>>>> the RAID-Z options when stripes of mirrors would perform better and offer
>>>>> more flexibility.  I thought that was notable.
>>>>>
>>>>>
>>>>>
>>>>> On Fri, Mar 29, 2013 at 2:44 PM, Jim Kinney <jim.kinney at gmail.com>wrote:
>>>>>
>>>>>> There was an update to this that just hit /.
>>>>>>
>>>>>> WooHoo!
>>>>>>
>>>>>> I have not used ZFS (minimal solaris experience) before but I have a
>>>>>> situation where raidz looks like a very good choice. An external 16 bay
>>>>>> JBOD box hanging off a SAS HBA looks like a prime candidate. The big issue
>>>>>> for me is the support for native NFSv4 ACLs which solves some issues.
>>>>>>
>>>>>> As I go through this exercise, I'll keep some notes and maybe look at
>>>>>> a presentation on doing this.
>>>>>>
>>>>>> hints, gotcha's, are very welcome.
>>>>>>
>>>>>> I did find a pdf of the zfsadmin.pdf  http://pdfhome.org/zfsadmin.pdf
>>>>>>
>>>>>> --
>>>>>> --
>>>>>> James P. Kinney III
>>>>>> *
>>>>>> *Every time you stop a school, you will have to build a jail. What
>>>>>> you gain at one end you lose at the other. It's like feeding a dog on his
>>>>>> own tail. It won't fatten the dog.
>>>>>> - Speech 11/23/1900 Mark Twain
>>>>>> *
>>>>>> http://electjimkinney.org
>>>>>> http://heretothereideas.blogspot.com/
>>>>>> *
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>>>>>
>>>>>
>>>>> --
>>>>>   Ed Cashin <ecashin at noserose.net>
>>>>>   http://noserose.net/e/
>>>>>   http://www.coraid.com/
>>>>>
>>>>> _______________________________________________
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>>>>
>>>>
>>>> --
>>>> Charles Selfridge
>>>>
>>>> PBYC  IT director
>>>>
>>>> (404) 910-3409
>>>>
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>>
>> --
>> Charles Selfridge
>>
>> PBYC  IT director
>>
>> (404) 910-3409
>>
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>
>
> --
> David Tomaschik
> OpenPGP: 0x5DEA789B
> http://systemoverlord.com
> david at systemoverlord.com
>
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