X-MimeOLE: Produced By Microsoft Exchange V6.5
Received: by onstor-exch02.onstor.net 
	id <01C87580.2FB38C58@onstor-exch02.onstor.net>; Fri, 22 Feb 2008 10:24:39 -0800
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----_=_NextPart_001_01C87580.2FB38C58"
Content-class: urn:content-classes:message
Subject: RE: do we support volumes with multiple raid levels luns?
Date: Fri, 22 Feb 2008 10:24:39 -0800
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E05C742F7@onstor-exch02.onstor.net>
In-Reply-To: <BB375AF679D4A34E9CA8DFA650E2B04E0875EF30@onstor-exch02.onstor.net>
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
Thread-Topic: do we support volumes with multiple raid levels luns?
Thread-Index: Achzd9LL0Ki78BrPR26nIKysplN1/wB+//IgAAFpChAAAPb3AAAAq0gA
From: "Sandrine Boulanger" <sandrine.boulanger@onstor.com>
To: "Eric Barrett" <eric.barrett@onstor.com>,
	"Dave Limato" <dave.limato@onstor.com>,
	"dl-Design Review" <dl-designreview@onstor.com>,
	"dl-Marketing" <dl-marketing@onstor.com>

This is a multi-part message in MIME format.

------_=_NextPart_001_01C87580.2FB38C58
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

That's not my point, I know the labels are meaningless; I just want to
know if we would support customers who mix physical raid levels in the
same volume.

_____________________________________________
From: Eric Barrett=20
Sent: Friday, February 22, 2008 10:07 AM
To: Sandrine Boulanger; Dave Limato; dl-Design Review; dl-Marketing
Subject: RE: do we support volumes with multiple raid levels luns?

We should not prevent it, since the labels are meaningless.  If they had
some actual weight in that they always accurately reflected the RAID
type as given by the array, it would make sense to do so.


_____________________________________________=20
From: 	Sandrine Boulanger =20
Sent:	Friday, February 22, 2008 9:39 AM
To:	Dave Limato; dl-Design Review; dl-Marketing
Subject:	RE: do we support volumes with multiple raid levels
luns?

I know there are ways to do it, but should we prevent it or not. I want
an official answer.

_____________________________________________
From: Dave Limato=20
Sent: Friday, February 22, 2008 9:25 AM
To: Sandrine Boulanger; dl-Design Review; dl-Marketing
Subject: RE: do we support volumes with multiple raid levels luns?

Why yes Sandrine, I believe we do, but I think it is somewhat difficult
to support because of the artificial raid levels.


_____________________________________________
From: Sandrine Boulanger=20
Sent: Tuesday, February 19, 2008 8:20 PM
To: dl-Design Review; dl-Marketing
Subject: do we support volumes with multiple raid levels luns?

Our lun labeling has a string for raid level as a parameter. Even we can
artificially label luns as Raid-5 even if the physical read level on
disk id Raid-0, do we support mixing physical raid levels within the
same volume?=20

------_=_NextPart_001_01C87580.2FB38C58
Content-Type: text/html;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
6.5.7652.24">
<TITLE>RE: do we support volumes with multiple raid levels luns?</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/rtf format -->

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
FACE=3D"Arial">That</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
FACE=3D"Arial">&#8217;</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 FACE=3D"Arial">s not my =
point, I know the labels are</FONT></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"> <FONT COLOR=3D"#000080" =
SIZE=3D2 FACE=3D"Arial">meaningless;</FONT></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" =
SIZE=3D2 FACE=3D"Arial"> I just want to know if we would support =
customers who mix</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"> <FONT COLOR=3D"#000080" SIZE=3D2 =
FACE=3D"Arial">physical</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"> <FONT COLOR=3D"#000080" SIZE=3D2 FACE=3D"Arial">raid =
levels</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"> =
<FONT COLOR=3D"#000080" SIZE=3D2 FACE=3D"Arial">in the same =
volume.</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Tahoma">_____________________________________________<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">From:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Eric Barrett<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">Sent:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Friday, February 22, 2008 =
10:07 AM<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">To:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Sandrine Boulanger; Dave =
Limato; dl-Design Review; dl-Marketing<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">Subject:</FONT></B></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Tahoma"> RE: do we support volumes with multiple raid levels =
luns?</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">We =
should not prevent it, since the labels are meaningless.&nbsp; If they =
had some actual weight in that they always accurately reflected the RAID =
type as given by the array, it would make sense to do =
so.</FONT></SPAN></P>
<BR>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D1 =
FACE=3D"Tahoma">_____________________________________________ =
</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">From: &nbsp;</FONT></B></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"> <FONT SIZE=3D1 =
FACE=3D"Tahoma">Sandrine Boulanger&nbsp; </FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">Sent:&nbsp;&nbsp;</FONT></B></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"> <FONT SIZE=3D1 =
FACE=3D"Tahoma">Friday, February 22, 2008 9:39 AM</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">To:&nbsp;&nbsp;&nbsp;&nbsp;</FONT></B></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"> <FONT SIZE=3D1 =
FACE=3D"Tahoma">Dave Limato; dl-Design Review; =
dl-Marketing</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">Subject:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>=
</B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"> <FONT =
SIZE=3D1 FACE=3D"Tahoma">RE: do we support volumes with multiple raid =
levels luns?</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
FACE=3D"Arial">I know there are ways to do it, but should we prevent it =
or not. I want an official answer.</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Tahoma">_____________________________________________<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">From:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Dave Limato<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">Sent:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Friday, February 22, 2008 =
9:25 AM<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">To:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Sandrine Boulanger; =
dl-Design Review; dl-Marketing<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">Subject:</FONT></B></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Tahoma"> RE: do we support volumes with multiple raid levels =
luns?</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
FACE=3D"Arial">Why yes Sandrine, I believe we do, but I think it is =
somewhat difficult to support because of the artificial raid =
levels.</FONT></SPAN></P>
<BR>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Tahoma">_____________________________________________<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">From:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Sandrine Boulanger<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">Sent:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> Tuesday, February 19, =
2008 8:20 PM<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">To:</FONT></B></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Tahoma"> dl-Design Review; =
dl-Marketing<BR>
</FONT></SPAN><SPAN LANG=3D"en-us"><B></B></SPAN><SPAN =
LANG=3D"en-us"><B><FONT SIZE=3D2 =
FACE=3D"Tahoma">Subject:</FONT></B></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Tahoma"> do we support volumes with multiple raid levels =
luns?</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">Our =
lun labeling has a string for raid level as a parameter. Even we can =
artificially label luns as Raid-5 even if the physical read level on =
disk id Raid-0, do we support mixing physical raid levels within the =
same volume?</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"> </SPAN></P>

</BODY>
</HTML>
------_=_NextPart_001_01C87580.2FB38C58--
