Hi all,
This was my original post:
>I've two Ultra Enterprise 450s to which an A5000 is connected. I'm
>investigating setting up failover with these machines. The A5000
>will have an Oracle database on it with RAID0+1. My OS is Solaris > 2.6
>and I'll be using Volume Manager 2.6.
>
>I have three questions:
>
>- The documentation refers to "length of subdisk". I'm assuming this
> is in sectors. What is a good way of figuring out a "good" value for
>the subdisk?
>
>- Is 64kb a good size for the stripe unit size? Any things to keep in
>mind while calculating this?
>
>- I'd like to know what people recommend for failover software. Any
> other hints/tips regarding this will be much appreciated.
I did not get any response to my first two questions, but here are people's
responses to the failover software.
My thanks to all.
Rasana
------
"Seth Rothenberg" <SROTHENB@montefiore.org>
We have been satisfied with Veritas FirstWatch for our HA software. The only
drawback I have seen is that FirstWatch does not do service-level failovers.
Either the Primary is up or it is not. During failover, the primary actually
gets HALTED.
(You could add agents to do service-level failovers if you need them).
-------------------
I feel that you should go for cluster solution by sun, but it may be
costly. Else you can write your own scripts...
-------------------
Thomas Anders <anders@hmi.de>
Can't recommend it since I didn't use it yet, but it's open-source, so
you are free to try:
Claims to work for Solaris and Linux.
Of course there are the big players, too (others will surely comment on
them). For a small commercial player consider Wizard (www.wizard.de).
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