raid controller recommendation

[Robert L Cochran]

I'm starting to see the light now. Thanks Steve and Mike.

Bob


Steve Wechsler wrote:

> Speaking as a database administrator, it's also good for running a large
> data warehouse application.
> 
> With databases you want to maximize the number of spindles to increase
> throughput with minimal seeks (although with that many drives you're
> probably going to hit the limitations of the PCI bus). Many database servers
> will run an array with many smaller disks, rather than fewer large disks.
> It's much faster to pull 1 MB off 20 disks simultanously than to pull 20 MB
> off one disk.
> 
> Also, someone commented on the negligible performance difference between SW
> & HW raid. While this may be the case for RAID 1, 0, or 10, with any RAID
> solution that requires parity computation (3, 5, 30 or 50), you had better
> go the hardware route.
> 
> Steve
> 
> 
>>-----Original Message-----
>>From: fedora-list-admin at redhat.com
>>[mailto:fedora-list-admin at redhat.com]On Behalf Of mike webster
>>Sent: Thursday, December 11, 2003 9:41 PM
>>To: fedora-list at redhat.com
>>Subject: Re: raid controller recommendation
>>
>>
>>I'm in the shared / dedicated / collocation / free hosting business.  A
>>16 drive array is quite handy for creating a SAN.  Right now I have
>>(many) servers running 72GB SCSI drives in a RAID5, 3+1 configuration
>>and I must say its quite expensive.  Imagine the cost savings by
>>populating a 16 drive SAN with 300GB IDE drives.  Terabytes of storage,
>>much cheaper that SCSI...
>>
>>Okay, that was my $.02 worth.   Please continue...
>>
>>Mike.
>>
>>
>>On Thu, 2003-12-11 at 20:29, Robert L Cochran wrote:
>>
>>>Jesse, what advantage does having a 16 drive RAID array give
>>
>>you? I'm in
>>
>>>no way a RAID expert and don't understand the business need for a 16
>>>drive array.
>>>
>>>Thanks!
> 
> 
> 
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-- 
Bob Cochran
Greenbelt, Maryland, USA
http://greenbeltcomputer.biz/