Hi :)
On Tue, Oct 2, 2012 at 6:57 AM, John R Pierce <pierce@xxxxxxxxxxxx> wrote:
> On 10/01/12 8:39 PM, Keith Keller wrote:
>> The controller node has two 90GB SSDs that I plan to use as a
>> bootable RAID1 system disk. What is the preferred method for laying
>> out the RAID array?
>
> a server makes very little use of its system disks after its booted,
> everything it needs ends up in cache pretty quickly. and you typically
> don't reboot a server very often. why waste SSD for that?
>
> I'd rather use SSD for something like LSI Logic's CacheCade v2 (but this
> requires you use a LSI SAS raid card too)
Just add to this comment that you can also use the SSD drives to store
the logs/journals/metadata/whatever_you_call_it.
As an example, with XFS you would use the -l option.
Rafa
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