RE: disk arms (was RE: Tips for user ASP) -- MIDRANGE-L

× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.

Eric,

Yes, a mirrored pair can utilize either drive for reads.

The IBM midrange has it's own way of speaking.  You are correct, there
are various forms of RAID, which include both the RAID-5 and RAID-1
(mirroring).  In any abstract, platform-neutral discussion of disk
protection they would both be included as forms of RAID.  However, in
our isolated little midrange world, there are usually referred to as
RAID and mirroring.

The site referenced below lists nine different categories of RAID.

http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci214332,00.htm
l

Regards,
Andy Nolen-Parkhouse

> On Behalf Of DeLong, Eric
> Subject: RE: disk arms (was RE: Tips for user ASP)
>
> I guess that would be: "Are the arms of a
> mirrored pair independent of each other (for asynchronous reads)?"
>
> Also, isn't mirroring considered a form of RAID?  I seem to recall
RAID
> having a number associated to indicate the form of RAID being
implemented.
> RAID 5 is the data-striping method, RAID 1 is mirroring..... (?)
>
> Eric DeLong

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.