[ovirt-users] Storage Hardware for Hyperconverged oVirt: Gluster best practice

[Yaniv Kaul]

On Fri, Jan 26, 2018 at 4:58 PM, <ovirt at fateknollogee.com> wrote:

> Yaniv,
>
> You bring up a valid point.
>
> I asked about RAID since I was concerned about drive failures &
> performance.
> Since Gluster will handle data replication, using HBA seems like a better
> choice?
>

Without local node replication (RAID), a failed disk == a failed node. This
may or may not be acceptable.
Y.


> From Yaniv:
>>>
>> I think there are two interesting questions here:
> 1. Why would you want RAID? Your data is replicated already on other
> Gluster nodes. RAID writes will wear out the SSDs earlier and RAID 'wastes'
> additional space. The reason may be because you don't want the node to go
> down in case of a single disk malfunction. Fair - but is that the case?
> 2. I think HW RAID should be higher performing, but that's about it.
> Y.
>
> On 2018-01-10 12:05, Roberto Nunin wrote:
>
>> Il 10 Gen 2018 20:40, <ovirt at fateknollogee.com> ha scritto:
>>
>> oVirt + Gluster (hyperconverged) RAID question:
>>> I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM
>>> (boot drive for o/s install) and 6x 1TB SSD (to be used for
>>> Gluster).
>>> For the SSDs, is hardware or software RAID preferred or do I use an
>>> HBA?
>>> The RedHat docs seem to suggest hardware RAID, others on the forum
>>> say HBA  or software RAID.
>>>
>>> What are other folks using?
>>>
>>
>> I'm using hardware raid.
>>
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>>>
>>
>>
>>
>> Links:
>> ------
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>>
>
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