RE: Single RAID 5 array

From: Satar Naghshineh <Satar.Naghshineh_at_irvine.mellesgriot.com>
Date: Fri, 29 Sep 2000 11:57:48 -0700
Message-Id: <10634.118259@fatcity.com>

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Make sure your array is totally redundant. Have two controllers accessing the array. Also, look into cooling fans, power supplies, redundant cache (if applicable), redundant disk bus, etc.

Without, a hot spare, you can lose only one drive.

One last thing, buy an external disk drive for your archived redo logs.

Regards,
Satar

> -----Original Message-----
> From: Henry Poras [SMTP:Henry.Poras_at_ctp.com]
> Sent: Friday, September 29, 2000 7:26 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Single RAID 5 array
>
> Looks like we are heading towards an application to be placed on an NT box
> with a single RAID 5 array. I had (still have) some thoughts on the
> 'single
> array' part and was interested to see if there were other comments. My
> main
> concern with the single array is that the data files share the same disks
> as
> the archive logs. Media failure could thus prevent a complete recovery. It
> still seems worthwhile to archive, however, as you could still recover up
> to
> the most recent copy of archive log on tape. Anything I am missing? Thanks
> for the help.
>
> Henry
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Henry Poras
> INET: Henry.Poras_at_ctp.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
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Make sure your array = is totally redundant. Have two controllers accessing the array. Also, = look into cooling fans, power supplies, redundant cache (if = applicable), redundant disk bus, etc.

Without, a hot = spare, you can lose only one drive.

One last thing, buy = an external disk drive for your archived redo logs.

Regards, Satar

</P>
<UL>
<P><FONT SIZE=3D1 FACE=3D"Arial">-----Original Message-----</FONT>
<BR><B><FONT SIZE=3D1 FACE=3D"Arial">From:&nbsp;&nbsp;</FONT></B> <FONT =

SIZE=3D1 FACE=3D"Arial">Henry Poras [SMTP:Henry.Poras_at_ctp.com] Sent:   Friday, September 29, 2000 7:26 PM To:     Multiple recipients of list ORACLE-L Subject:       = Single RAID 5 array

Looks like we are heading towards an = application to be placed on an NT box with a single RAID 5 array. I had = (still have) some thoughts on the 'single array' part and was interested to see = if there were other comments. My main concern with the single array is that = the data files share the same disks as the archive logs. Media failure could = thus prevent a complete recovery. It still seems worthwhile to archive, = however, as you could still recover up to the most recent copy of archive log = on tape. Anything I am missing? Thanks for the help.

<P><FONT SIZE=3D2 FACE=3D"Arial">Henry</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">-- </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Please see the official ORACLE-L =

FAQ: <A = HREF=3D"http://www.orafaq.com" =
TARGET=3D"_blank">http://www.orafaq.com</A>

<BR><FONT SIZE=3D2 FACE=3D"Arial">-- </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Author: Henry Poras</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; INET: =

Henry.Poras_at_ctp.com

Fat City Network = Services    -- (858) 538-5051  FAX: (858) = 538-5051
 San Diego, = California        -- Public Internet = access / Mailing Lists
 <FONT SIZE=3D2 =

FACE=3D"Arial">---------------------------------------------------------=

-----------
 To REMOVE yourself from this mailing = list, send an E-Mail message
 to: ListGuru_at_fatcity.com (note EXACT = spelling of 'ListGuru') and in
 the message BODY, include a line = containing: UNSUB ORACLE-L
 (or the name of mailing list you want = to be removed from).  You may also send the HELP command for other = Received on Fri Sep 29 2000 - 13:57:48 CDT