[3dem] RAID question for K2/K3 users

[Marin van Heel]

Dear David
The reason for a RAID-0 rather a RAID-5 is undoubtedly the higher I/O speed
and not primarily a matter of company policy...
Cheers
Marin

On Thu, 29 Feb 2024, 20:00 Morgan, David Gene, <dagmorga at indiana.edu> wrote:

> Hi,
>
> We had an issue with a disk in the RAID array on our K3 last week.  It
> fortunately turned out to be a non-fatal error, but it did make me realize
> that this is a RAID0 array and that a real disk error could result in
> troublesome loss of data.
>
> I asked a Gatan engineer who is here installing a system on a new
> microscope about switching to RAID5 or RAID6.  His comment was that company
> policy is RAID0 only, but that he didn't see any reason other than a loss
> in write speed that could result from switching RAID type.
>
> Has anyone changed the RAID on a Gatan computer to something else, and if
> so, have you had any issues?
>
> Thanks in advance.
> --
>     politics is more difficult than physics.
>                                              A. Einstein
>
>             David Gene Morgan
>         Electron Microscopy Center
>              047E Simon Hall
>              IU Bloomington
>           812 856 1457 (office)
>           812 856 3221 (3200)
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