[mirror-admin] Breaking the 1TB limit?

[Stephen John Smoogen]

On Mon, Feb 22, 2010 at 1:01 PM, Chuck Anderson <cra at wpi.edu> wrote:
> On Mon, Feb 22, 2010 at 01:08:36PM -0600, Matt Domsch wrote:
>> 1) do many mirrors have more than 1TB they would be willing to use to
>> host Fedora content?  If so, how many, and how much more?
>
> I've been struggling with keeping my mirror in the 1.5TB I have
> available for Fedora.  As it is, I've had to move CentOS/EPEL to a
> separate 300GB disk array, and I've started deleting old Fedora
> releases, first 1-4 and now 5.  Once we finish the migration of some
> older boxes to CentOS, I'll be able to delete all obsolete releases to
> free up more space, about 455GB, bringing me back down to about 1TB,
> and leaving about 500GB free.
>
> So, I guess for right now I'd rather not see Fedora grow past 1TB, but
> in the future (F14-F15 time frame) I could go up to 1.5TB.
>
> Money is tight right now for upgrading to larger/more storage.  Anyone
> here play with cheap 1-2TB SATA disks + 3ware RAID cards for their
> mirror?  What do you use for external enclosures?  Is this really a
> viable option from a performance and reliability standpoint?

Most of my experience has been helping people try to get data off of
them at one point or another. The big issue with the large disks are
that they are slow. You can overload them pretty quickly to the point
where you may have 16 TB of data in your raid, but effectively you can
only use 1-4 because of load :(. Maybe the larger block sizes will
help with this.. but a lot of it is just how many platters you can
read/write at once (at 5400 to 7200 RPM versus 10-15k)


-- 
Stephen J Smoogen.

Ah, but a man's reach should exceed his grasp. Or what's a heaven for?
-- Robert Browning

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