[CentOS] settings up cheap a NAS / SAN server, is it possible?
Rudi Ahlers
Rudi at SoftDux.com
Tue Jul 1 06:07:55 UTC 2008
Les Mikesell wrote:
> Rudi Ahlers wrote:
>> David Mackintosh wrote:
>>> On Mon, Jun 30, 2008 at 02:08:33PM -0500, Les Mikesell wrote:
>>>
>>>> Have you updated to Centos 5.2 yet? And if so, did it improve NFS
>>>> performance?
>>>>
>>>
>>> Sorry, these computers are in production now so I can't fiddle with
>>> them.
>>>
>>> Besides, this would be a "long" upgrade -- they are both CentOS 4.x
>>> systems.
>>>
>>> _______________________________________________
>>>
>> This raises an interesting question. What do you do in this kind of
>> scenario? How do you upgrade a NAS / SAN with say 5 / 10 TB worth of
>> data?
>
> I haven't done anything that big, but I normally put the OS on a small
> mirrored pair of swappable drives so an upgrade consists of swapping
> those drives with a new set pre-installed in a spare chassis. That
> way you are only down for the time it takes to reboot and if anything
> goes wrong you can put the old set back. In any case you wouldn't be
> doing anything to the data partitions in an upgrade.
>
ok, so in your setup the OS is totally separate from the data itself?
So, I guess I need to rethink my setup. Since I have a 2U chassis, which
can only take 6 drives, I guess I should maybe look into running the OS
from a USB memory stick or something.
--
Kind Regards
Rudi Ahlers
CEO, SoftDux
Web: http://www.SoftDux.com
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