Re: DB mirroring vs. RAID
1999-04-21 13:09:08
I stand caught - No, Mine is not a Raid set - I had a limited number of
drives that I could install so I maximized the total drive space for pools
and db logs - Certainly if space permits - go for it - I wasn't willing to
lose 1/n of my drive space for Raid 5. I migrate to tape and a copy pool
immediately after completing my backups. It's a personal comfort issue - I'm
comfortable with the setup that I have - you may want the additional fault
tolerance.
Ron
-----Original Message-----
From: Remeta, Mark [mailto:MRemeta AT SELIGMANDATA DOT COM]
Sent: Wednesday, April 21, 1999 8:35 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: DB mirroring vs. RAID
Yes but you did not answer Reinhard's question. Was the
'primary disk' a
RAID 5 set?
> -----Original Message-----
> From: James, Ron [SMTP:Rjames AT ATSGROUP DOT COM]
> Sent: Wednesday, April 21, 1999 10:00 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: DB mirroring vs. RAID
>
> Mirroring saved my butt once - I lost the primary disk - I
replaced the
> disk
> and with the help of Kelly Lipp at SSSI we restored the
server from the
> mirrored volume - and was well in under a few hours.
>
> Ron James
> Network Management Specialist
> Premiere Conferencing
>
> -----Original Message-----
> From: Reinhard Mersch
[mailto:mersch AT UNI-MUENSTER DOT DE]
> Sent: Wednesday, April 21, 1999 5:44 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: DB mirroring vs. RAID
>
> Hi,
>
> again I am struggling with my ever growing
ADSM DB, not
> knowing where to
> get the additional disk space I need. An
option would be,
> to
> give up DB
> mirroring and rely on RAID5 instead.
>
> Since RAID5 protects against
media/hardware failures, are
> there other
> threats, DB mirroring protects against and
RAID5 does not?
> There has been
> discussion on this in August 98 and Andy
Raibeck mentioned
> partial page
> writes. But how probable are they? Has
anybody out there
> ever been in a
> situation where DB mirroring (would have)
helped and RAID5
> (would have)
> not?
>
> Regards
>
> --
> Reinhard Mersch
Westfaelische
> Wilhelms-Universitaet
> Zentrum fuer Informationsverarbeitung -
ehemals
> Universitaetsrechenzentrum
> Roentgenstrasse 9-13, D-48149 Muenster,
Germany Tel:
> +49(251)83-31583
> E-Mail: mersch AT uni-muenster DOT de
Fax:
> +49(251)83-31653
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- DB mirroring vs. RAID, Reinhard Mersch
- Re: DB mirroring vs. RAID, James, Ron
- Re: DB mirroring vs. RAID, Remeta, Mark
- Re: DB mirroring vs. RAID, Prather, Wanda
- Re: DB mirroring vs. RAID,
James, Ron <=
- Re: DB mirroring vs. RAID, Remeta, Mark
- Re: DB mirroring vs. RAID, Kenneth Sparks
- Re: DB mirroring vs. RAID, Paul Zarnowski
- Re: DB mirroring vs. RAID, Reinhard Mersch
- Re: DB mirroring vs. RAID, Dwight Cook
- Re: DB mirroring vs. RAID, Robinson, Cris
- Re: DB mirroring vs. RAID, James, Ron
- Re: DB mirroring vs. RAID, Trevor Foley
- Re: DB mirroring vs. RAID, Simon Watson
- Re: DB mirroring vs. RAID, Remeta, Mark
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