Re: Actually NT NEWS Server

Joe Bissot ( )
Tue, 01 Apr 1997 00:17:10 -0800

I hope you actually have two stripe sets mirrored. If you stripe sets are
actually RAID 5 then you are being double redundant (maybe that is what you
want?) But a RAID 5 adds a great deal of overhead and will greatly decrease
your disk performance. If ultra redundancy is your goal learn a hard lesson
from me and add a couple of hot spares. The data you save might be your
own. :)

I lost two drives in the span of an hour.... bing bam get the backup tape.

At 03:44 PM 3/18/97 -0500, you wrote:
>At 03:32 PM 3/18/97 -0500, you wrote:
>>I run commercial nns also. Although Netmanage support leaves a little to be
>>desired, the product is basically set and forget. Just keep an eye on the
>>disk space.
>>I run about 11k+ news groups from sprint on a single 9gb ultra scsi wide
>>and it works great.
>Aiieeee! Single drives for news are NOT recommended. If your NNS is
>properly configured, go into performance manager, and see how disk bound
>you are. You're probably losing lots of articles for inability to keep up.
> You need to be inserting about 3-5 articles a second for that many
>We have 10 2.9 GB SCSI drives in a RAID-5 mirror.... 2 RAID arrays of 5
>drives each, spanned. We could lose two drives (but not more than one from
>each 5-drive chain) and still be operable. And with ten spindles to share
>the data accesses, over two SCSI channels, it smokes.
>Single drive news solutions are horribly inefficient. Even if you only use
>striping in NT Server instead of hardware RAID, you should get more than
>one drive handling that data. Use RAID-5, which is better for lots of
>small files, whereas RAID-3 is better for large files and throughput.
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