[ML-General] hardware RAID

[Brian Oborn]

On Thu, Jun 11, 2015 at 4:32 PM, WebDawg <webdawg at gmail.com> wrote:

> On Thu, Jun 11, 2015 at 2:24 PM, Brian Oborn <linuxpunk at gmail.com> wrote:
>
>> I swear by Linux software RAID. At my previous job we had some problems
>> with hardware RAID controllers, so I started using the software RAID and
>> never looked back. Remember that you also have to plan for recovery if the
>> controller bites the dust, whereas with software RAID you can use any other
>> linux machine. Finally, if you possibly can run RAID10 instead of RAID5/6
>> (or LVM and bunch of RAID1 pairs). You'll get much better performance and
>> resiliency, especially with small reads and writes.
>>
>> Brian Oborn (bobbytables)
>>
>>
> I love ZFS.
>
> I still think you should have a good controller (an LSI in IT mode?).  You
> should also have at a minimum drives that support TLER.  (WD Red).
>
> I know with the software raid, it is best to have this nice controller,
> but turn the features off (google LSI it VS ir mode).
>
> With, at least, ZFS you can use a SSD as your cache + other things.
>
> I also ran ZFS for awhile, but it wasn't worth all of the trouble of
running Solaris (back when OpenSolaris existed). Nowadays I would be
interested in ZFS on Linux, which seems pretty stable.
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