<HTML><HEAD></HEAD>
<BODY dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Hi</DIV>
<DIV>Thank you very much for quick response. </DIV>
<DIV> </DIV>
<DIV>Just a quick questions, some times I do get confused.</DIV>
<DIV> </DIV>
<DIV>1. If I need 78TB for home and 50TB for scratch, how many OSTs should be
there for each file system in a single DAS (attached to two OSSs (HA).</DIV>
<DIV>Presently my OST table is as follows:</DIV>
<DIV> </DIV>
<TABLE style="BORDER-COLLAPSE: collapse; COLOR: #000000" cellSpacing=0
cellPadding=0 width=540 border=0>
<COLGROUP>
<COL style="WIDTH: 48pt" span=3 width=64>
<COL style="WIDTH: 84pt; mso-width-source: userset; mso-width-alt: 4096"
width=112>
<COL style="WIDTH: 72pt; mso-width-source: userset; mso-width-alt: 3510"
width=96>
<COL style="WIDTH: 48pt" width=64>
<COL style="WIDTH: 57pt; mso-width-source: userset; mso-width-alt: 2779"
width=76>
<TBODY>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl66
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20 width=64><FONT style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl67
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
width=64><FONT style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl67
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
width=64><FONT style="FONT-SIZE: 11pt">Total HDD</FONT></TD>
<TD class=xl67
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
width=112><FONT style="FONT-SIZE: 11pt">RAID 6 Overhead</FONT></TD>
<TD class=xl67
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
width=96><FONT style="FONT-SIZE: 11pt">Available HDD</FONT></TD>
<TD class=xl67
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
width=64><FONT style="FONT-SIZE: 11pt">each HDD Capacity (in TB)</FONT></TD>
<TD class=xl68
style="BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
width=76><FONT style="FONT-SIZE: 11pt">Total in TB)</FONT></TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl69
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20><FONT style="FONT-SIZE: 11pt">OST_01</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">20</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">2</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">18</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">1.2</FONT></TD>
<TD class=xl70
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">21.6</FONT></TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl69
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20><FONT style="FONT-SIZE: 11pt">OST_02</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">20</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">2</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">18</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">1.2</FONT></TD>
<TD class=xl70
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">21.6</FONT></TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl69
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20><FONT style="FONT-SIZE: 11pt">OST_03</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">20</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">2</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">18</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">1.2</FONT></TD>
<TD class=xl70
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">21.6</FONT></TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl69
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20><FONT style="FONT-SIZE: 11pt">OST_04</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">20</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">2</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">18</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">1.2</FONT></TD>
<TD class=xl70
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">21.6</FONT></TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl69
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20><FONT style="FONT-SIZE: 11pt">OST_05</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">20</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">2</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">18</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">1.2</FONT></TD>
<TD class=xl70
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">21.6</FONT></TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD class=xl69
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=20><FONT style="FONT-SIZE: 11pt">OST_06</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">20</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">2</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">18</FONT></TD>
<TD class=xl65
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">1.2</FONT></TD>
<TD class=xl70
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 0.5pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">21.6</FONT></TD></TR>
<TR style="HEIGHT: 15.75pt" height=21>
<TD class=xl71
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: windowtext 1pt solid; PADDING-RIGHT: 1px"
height=21><FONT style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl72
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl72
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl72
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl72
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl72
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 0.5pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"><FONT
style="FONT-SIZE: 11pt"> </FONT></TD>
<TD class=xl73
style="BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: windowtext 1pt solid; PADDING-TOP: 1px; PADDING-LEFT: 1px; BORDER-LEFT: medium none; PADDING-RIGHT: 1px"
align=right><FONT style="FONT-SIZE: 11pt">129.6</FONT></TD></TR></TBODY></TABLE>
<DIV> </DIV>
<DIV>2. How many MDTs should I create for each file system?</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV dir=ltr>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV dir=ltr>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV> </DIV>
<DIV><FONT size=2 face=Verdana>Regards</FONT></DIV>
<DIV><FONT size=2 face=Verdana></FONT> </DIV>
<DIV><FONT style="size: 2" face=Verdana><STRONG>Ravi
Konila</STRONG></FONT></DIV>
<DIV><FONT style="size: 2" face=Verdana>Sr. Technical Consultant</FONT></DIV>
<DIV><FONT style="size: 2" face=Verdana>MSIL, India</FONT></DIV>
<DIV><FONT style="COLOR: #a5a5a5"><FONT style="size: 2" face=Verdana>Ph: +91
9901072688</FONT></FONT></DIV>
<DIV> </DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV style="FONT: 10pt tahoma">
<DIV> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title=colin.faber@seagate.com>Colin Faber</A> </DIV>
<DIV><B>Sent:</B> Friday, September 15, 2017 8:18 PM</DIV>
<DIV><B>To:</B> <A title=ravibhatk@gmail.com>Ravi Konila</A> </DIV>
<DIV><B>Cc:</B> <A title=lustre-discuss@lists.lustre.org>Lustre Discuss</A>
</DIV>
<DIV><B>Subject:</B> Re: [lustre-discuss] Multiple Lustre
filesystem</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV dir=ltr>Hi,
<DIV class=gmail_extra>
<DIV> </DIV>
<DIV class=gmail_quote>On Fri, Sep 15, 2017 at 6:54 AM, Ravi Konila <SPAN
dir=ltr><<A target=_blank>ravibhatk@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex">
<DIV dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Hi,</DIV>
<DIV> </DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>I have few queries about Lustre File system as I am building new Lustre
File system for our production use. </DIV>
<DIV> </DIV>
<DIV>1. Can I create more than one Lustre file system for example, one Lustre
file system for /home and other for /scratch ?<SPAN
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<DIV> </DIV>
<DIV>Yes</DIV>
<DIV> </DIV>
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<DIV>2. As of now I have created 6 OSTs (total of 128TB storage) under shared
storage which uses two OSSs, how do I allocate that to different Lustre file
system if I can create multiple file
system?</DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>You will need to partition the storage and assign each storage target to a
different file system name.</DIV>
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<DIV>3. With single MDT can I have multiple Lustre file
system?</DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>No</DIV>
<DIV> </DIV>
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<DIV>4. Is it better to create multiple MDTs or single MDT would do? (again I
am using single shared storage with 2
MDS/MGS)?</DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>You can have 1 MGS for multiple file systems, but each file system requires
it's own MDT, and each file system can have multiple MDT's via DNE
feature.</DIV>
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<DIV>Any help in this regard would be highly appreciated.</DIV><SPAN
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<DIV> </DIV>
<DIV><FONT size=2 face=Verdana><STRONG>Ravi Konila</STRONG></FONT></DIV>
<DIV><FONT size=2 face=Verdana>Sr. Technical Consultant</FONT></DIV>
<DIV><FONT size=2 face=Verdana>MSIL, India</FONT></DIV>
<DIV><FONT color=#a5a5a5><FONT size=2 face=Verdana>Ph: +91
9901072688</FONT></FONT></DIV>
<DIV> </DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></FONT></SPAN></DIV></DIV></DIV></DIV></DIV></DIV><BR>______________________________<WBR>_________________<BR>lustre-discuss
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