[lug] NAS - OpenNAS, FreeNAS, NAS4Free, or COTS?

[Stephen Kraus]

I much preffer RAID-6 or RAID-60 for muti disk failure and large array
support.
On Dec 8, 2014 3:17 PM, "Quentin Hartman" <qhartman at gmail.com> wrote:

> The best way to avoid multiple disk failure is to get your disks from
> multiple vendors and/or manufacturers. That should make sure you don't get
> disks that were all "born" at the same time and share a common subtle flaw.
>
> On Mon, Dec 8, 2014 at 11:52 AM, Orion Poplawski <orion at cora.nwra.com>
> wrote:
>
>> On 12/08/2014 11:44 AM, Quentin Hartman wrote:
>> > I have to just put in a plug for a Synology device. They are pretty well
>> > bullet proof and super easy to maintain. If you need to do anything
>> weird they
>> > are linux based, but out of the box they are very capable. They are more
>> > expensive up front than rolling your own, but inexpensive enough that
>> the
>> > difference is more than made up for by the time savings in most cases.
>> I have
>> > a couple at the office, and use one for general NAS / file sharing
>> stuff, and
>> > the other as a backup destination. They are great.
>>
>> good to know, thanks.
>>
>> > also re RAID-5, in my experience, most of the problems with RAID-5 are
>> largely
>> > theoretical, until you get up to raid sets with about 10 disks or more.
>> I've
>> > never had problems with sets smaller than that, in terms performance,
>> > reliability, or recovery time. If budget is a concern, and you are
>> using a 4-5
>> > disk array, RAID-5 with a single hot spare (or even without if the data
>> is
>> > reconstruct-able and an array failure would be annoying but not
>> catastrophic)
>> >  makes a lot of sense in my opinion.
>> >
>>
>> Well, I recently lost a 6-disk RAID5 array of 2TB disks due to multiple
>> disk
>> failures.  Admittedly, it was compounded by SMART checks having been
>> turned
>> off accidentally, but it is quite possible for it to happen.  I also lost
>> a
>> RAID10 array to double disk failure.
>>
>>
>> --
>> Orion Poplawski
>> Technical Manager                     303-415-9701 x222
>> NWRA, Boulder/CoRA Office             FAX: 303-415-9702
>> 3380 Mitchell Lane                       orion at nwra.com
>> Boulder, CO 80301                   http://www.nwra.com
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>
>
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