Re: Backups versus snapshots

From: Keith Moore <kmoore_at_zephyrus.com>
Date: Thu, 18 Sep 2014 15:09:08 -0500
Message-ID: <ecf9c90d-4c21-4a8d-9fdf-39ad98e11710_at_email.android.com>

Yes, corruption detection was not my initial concerns but that's a good point as well.

Keith

On September 18, 2014 1:45:14 PM CDT, Kevin Closson <ora_kclosson_at_yahoo.com> wrote:
>Keith,
>
>I side 100% with your view on this. Was just checking to see if having
>RMAN comb the data for corruption was perhaps a part of the concern.
>
>I hope I don't run into folks at EMC who think a SAN array cannot fail.
>There is a reason IT employ disaster protection.
>
>
>
>________________________________
> From: Keith Moore <kmoore_at_zephyrus.com>
>To: Kevin Closson <ora_kclosson_at_yahoo.com>
>Cc: "kmoore_at_zephyrus.com" <kmoore_at_zephyrus.com>;
>"andrew.kerber_at_gmail.com" <andrew.kerber_at_gmail.com>;
>"Oracle-L_at_freelists.org" <oracle-l_at_freelists.org>
>Sent: Thursday, September 18, 2014 9:46 AM
>Subject: Re: Backups versus snapshots
>
>
>The purpose would be to have a backup if there is a catastrophic SAN
>failure.
>I know EMC and other storage vendors like to think that cannot happen
>but I've
>seen it four or five times over the years, mostly due to human error.
>
>Your database is gone which makes the snapshot (if it still exists)
>invalid.
>
>FYI, we will be using ExtremIO and there are a lot of good things about
>the
>VBlock. I'm just not comfortable with having zero backups.
>
>Keith
>
>
>> great thread.
>>
>> In this specific model would the purpose of RMAN backup to make sure
>you're
>> not backing up corrupt blocks?
>>
>>
>>
>>
>>
>>
>>
>> Kevin Closson
>> Chief Performance Architect - XtremIO
>> EMC
>>
>>
>> ________________________________
>> From: Keith Moore <kmoore_at_zephyrus.com>
>> To: andrew.kerber_at_gmail.com
>> Cc: "Oracle-L_at_freelists.org" <oracle-l_at_freelists.org>
>> Sent: Thursday, September 18, 2014 9:17 AM
>> Subject: Re: Backups versus snapshots
>>
>>
>> I agree. They do not want to pay for the backup infrastructure so if
>that is
>> the final decision by the architecture team, rman backups will not be
>an
>> option.
>>
>>
>>
>>
>>> Keep snapshots and rman backups. Belt and suspenders.
>>>
>>> Sent from my iPhone
>>>
>>
>>
>> --
>> http://www.freelists.org/webpage/oracle-l

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

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Received on Thu Sep 18 2014 - 22:09:08 CEST