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Subject: RE: Lun Label type-5 Functional Spec. for Kegg
Date: Thu, 23 Oct 2008 09:49:20 -0700
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Thread-Topic: Lun Label type-5 Functional Spec. for Kegg
Thread-Index: Ack0pDOGwsjJ1gNkTEyXhNf4IHF7KQAiul2w
References: <BB375AF679D4A34E9CA8DFA650E2B04E038F913A@onstor-exch02.onstor.net>
From: "Dave Limato" <dave.limato@onstor.com>
To: "James Kahn" <james.kahn@onstor.com>,
	"dl-Design Review" <dl-designreview@onstor.com>
Cc: "dl-Kegg" <dl-Kegg@onstor.com>

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Hi Jim, Nice work. Here are my comments.

Pg 7 2.3.3	Is the scsi id the only way vendors identify mirrors? Or
will you match the label, and if the id is different, don't use it.

Pg 7 2.3.4	I understand single lun volumes growing by expansion.
But taking a storage volume that has been expanded, which already
belongs to an ONStor volume, and using extents that are free to serve
other ONStor volumes seems un manageable. and difficult to track for the
storage admin. Unless our volumes only manage and use free extents, how
will this work? How will you manage a volume that becomes comprised of
luns and free extents?=20

Pg 12 5.3	Congratulations, you saved memory!

Pg 17 5.4.4	If the LUN was part of a volume before being expanded,
the volume will not have access to the expanded capacity of the LUN.
Doesn't that defeat the purpose of expanding the lun? What will we do
now that the lun has been expanded?=20

> _____________________________________________=20
> From: 	James Kahn =20
> Sent:	Wednesday, October 22, 2008 5:14 PM
> To:	dl-Design Review
> Cc:	dl-Kegg
> Subject:	Lun Label type-5 Functional Spec. for Kegg
>=20
> Here's lun label functional spec. updated for Kegg for review.
> Regards,
> Jim
>=20
>=20
> <\\mightydog\software\kegg\functional specs\lunLabel1.doc>
>=20
>=20

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<TITLE>RE: Lun Label type-5 Functional Spec. for Kegg</TITLE>
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<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Hi Jim, Nice work. =
Here are my comments.</FONT>
</P>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Pg 7 =
2.3.3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Is the scsi id the only way vendors =
identify mirrors? Or will you match the label, and if the id is =
different, don't use it.</FONT></P>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Pg 7 =
2.3.4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I understand single lun volumes =
growing by expansion. But taking a storage volume that has been =
expanded, which already belongs to an ONStor volume, and using extents =
that are free to serve other ONStor volumes seems un manageable. and =
difficult to track for the storage admin. Unless our volumes only manage =
and use free extents, how will this work? How will you manage a volume =
that becomes comprised of luns and free extents? </FONT></P>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Pg 12 =
5.3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Congratulations, you saved =
memory!</FONT>
</P>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Pg 17 =
5.4.4&nbsp;&nbsp;&nbsp;&nbsp; If the LUN was part of a volume before =
being expanded, the volume will not have access to the expanded capacity =
of the LUN. Doesn't that defeat the purpose of expanding the lun? What =
will we do now that the lun has been expanded? </FONT></P>

<P><FONT SIZE=3D1 =
FACE=3D"Tahoma">_____________________________________________ </FONT>

<BR><B><FONT SIZE=3D1 FACE=3D"Tahoma">From: &nbsp;</FONT></B> <FONT =
SIZE=3D1 FACE=3D"Tahoma">James Kahn&nbsp; </FONT>

<BR><B><FONT SIZE=3D1 FACE=3D"Tahoma">Sent:&nbsp;&nbsp;</FONT></B> <FONT =
SIZE=3D1 FACE=3D"Tahoma">Wednesday, October 22, 2008 5:14 PM</FONT>

<BR><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">To:&nbsp;&nbsp;&nbsp;&nbsp;</FONT></B> <FONT SIZE=3D1 =
FACE=3D"Tahoma">dl-Design Review</FONT>

<BR><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">Cc:&nbsp;&nbsp;&nbsp;&nbsp;</FONT></B> <FONT SIZE=3D1 =
FACE=3D"Tahoma">dl-Kegg</FONT>

<BR><B><FONT SIZE=3D1 =
FACE=3D"Tahoma">Subject:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>=
</B> <FONT SIZE=3D1 FACE=3D"Tahoma">Lun Label type-5 Functional Spec. =
for Kegg</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Here&#8217;s lun label functional spec. =
updated for Kegg for review.</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">Regards,</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">Jim</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">&lt;</FONT><A =
HREF=3D"file://\\mightydog\software\kegg\functional =
specs\lunLabel1.doc"><U><FONT COLOR=3D"#0000FF" SIZE=3D2 =
FACE=3D"Arial">\\mightydog\software\kegg\functional =
specs\lunLabel1.doc</FONT></U></A><FONT FACE=3D"Times New =
Roman">&gt;</FONT>
</P>
<BR>

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