RE: Mirroring Systems

["ron hawkins" <hwarangron@xxxxxxx>]

Bruce,

Thanks for the input. Twenty minutes to swap a system sounds good. Does it
matter how many libraries/files you're dealing with?

And what is 5761-HAS LP? I know that is high availability, but do you expect
them move into this arena?

Ron  

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of R Bruce Hoffman
Sent: Friday, February 08, 2008 9:38 AM
To: Midrange Systems Technical Discussion
Subject: Re: Mirroring Systems

iTera is/was, IMO, probably the most robust and easiest to install and 
use as well as one of the lower-priced options. We have had real 
hardware failures using this product and can role swap a system 
(hundreds of miles away) in about 20 minutes. The users saw no 
significant difference while operating on the backup boxes.

Today? Well, I see only two real vendors... I still like the iTera 
solution and, if priced competitively, any of the solutions that use 
remote journaling as their foundation (which I believe, they all do 
today) would work out until IBM extends the 5761-HAS LP. Then it's 
re-evaluation time.

Also, I found that the DataMirror product (now IBM) is more oriented to 
data manipulation rather than simple replication. Better suited for data 
warehouse environments.


ron hawkins wrote:
> Hi All,
>
>  
>
> We are interested in buying a mirroring solution for our iSeries. We have
> already contacted some of the providers and would like peoples opinions
> about any that they are already using. We've heard the sales pitch, now we
> would like to hear real stories, good or bad.
>
>  
>
> We have 1.4 Terabytes of data spread out across a couple of hundred
> libraries. Around 1000 users. 
>
>  
>
> We would welcome any comments.
>
>  
>
> Ron
>
>