[SunHELP] Disk Mirroring and failover

Tue May 11 15:18:31 CDT 2004

Thanks for all of the responses so far.  One last question then.  If the
system keeps running uninterrupted after a failed disk then how do you know
you have a failed disk.  Is there some sort of notification built in to SDS
?

Thanks,

Duke
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                      "Beaman, William C"                                                                                                
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                      Sent by:                   Subject:  Re: [SunHELP] Disk Mirroring and failover                                     
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                      help.org                                                                                                           

                      05/11/2004 03:43 PM                                                                                                
                      Please respond to                                                                                                  
                      "The SunHELP List"                                                                                                 

Yo,

Naw man, the mirror disk will kick in...not to worry...you don't have to
reboot or anything...this stuff is for high availability, so it keeps
running...depending on the system (if you have hot swap disks), you replace
bad disk, resync, and drive on...even on OS disk...we been doing this for a
few years...

Bill

Message: 12
Date: Tue, 11 May 2004 15:20:50 -0400
From: Bret Adams <bret at fabrikant.com>
Subject: Re: [SunHELP] Disk Mirroring and failover
To: The SunHELP List <sunhelp at sunhelp.org>
Message-ID: <5.0.0.25.2.20040511151748.01a7eee8 at pop.fabrikant.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

I believe if the main drive fails, you would have to reboot into the ok
prompt and then get the boot command to boot off of the second drive. Then
replace the original drive and then rebuild the mirror.

If the mirrored drive fails, you only have to hotswap a new drive in and
rebuild the mirror.

Bret

At 02:13 PM 5/11/2004, you wrote:
>Hello all,
>
>I'm reading up on using Solstice Disk Suite, but I do not seem to be able
>to find the answer to one of my questions.  It concerns disk mirroring.
In
>our systems we run one hard drive that contains both the OS and our
>applications.  If we were running SDS and mirrored this drive then would
>our systems just keep running if there was a drive failure ?  Or does
there
>have to be some sort of manual intervention to switch the mirrored disk to
>now run as the active/primary disk ?
>
>Thanks for any assistance,
>
>Duke
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End of SunHELP Digest, Vol 17, Issue 3
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