[Gluster-users] Getting the best performance v lowest energy use and small form factor

[Thing]

Hi,

I had already picked Gluster based on the requirements it meets, that of
not especially high disk i/o but fast recovery with as little dataloss as
possible and real time replication to a second site.






On 4 November 2015 at 12:16, Lindsay Mathieson <lindsay.mathieson at gmail.com>
wrote:

>
> On 4 November 2015 at 08:39, Thing <thing.thing at gmail.com> wrote:
>
>> Thanks but, your solution doesnt protect for a single PC hardware failure
>> like a PSU blowing ie giving me real time replication to the 2nd site so I
>> can be back up in minutes.
>>
>
> ZFS can be configured to replicate every few minutes - whether that is
> sufficient is dependant on your uptime and data loss requirements.
>
> If you *must* have realtime redundancy then yes something like gluster or
> ceph is your only option. Gluster is easier to setup and maintain then
> ceph. Both of them are a lot more reliable if you have three nodes, two
> nodes is asking for trouble - split brain etc.
>
> If you want some throughput estimates then we need more spec's:
>
> - RAM
> - CPU
> - Hard Disks
> - Network
> - Overall Config
>   * Caching
>   * Bonding
>   * etc
>
> - With a std 1GB ethernet, your writes will max out at around 110 MB/s
> - Same for Reads, unless your VM Host is also your gluster node, in which
> case your reads will be a bit slower than your underlying file system
> access times
>
>
> --
> Lindsay
>
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