This is a multi-part message in MIME format.
------_=_NextPart_001_01C5D8EB.3518FDCB
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
All,
=20
Has anyone else attempted to run tape drives over a long distance
FibreChannel connection? We are trying to run backups to tape over a
metro FC connection. It works - slowly. I was wondering, before we spent
a lot of time down at a very low level - if anyone else has tried this
successfully before.
=20
We are running NBU 5.1mp3a on a W2K3 master with AIX media servers. We
are running to SAN connected tape drives locally and remotely. The tape
drives are IBM LTO2 in ADIC Scalar I2K's. The SAN is Cisco MDS9000
series switches. The remote data center is connected to the local one
via long distance FC (approx 23 miles.)=20
=20
We have set up a local media server to run tape backup jobs to the
local tape drives as well as the remote drives. With a standard setup of
clients, server, and policy we will see upwards of 50 MB/s going to a
local tape drive. With the exact same configuration, except changing the
storage unit to the STU with the remote tape drives, we will see about
20 MB/s to the remote tape drive.
=20
Is this due to the latency in the long distance over Fibre Channel? Or
are we missing something?
=20
Bryan
=20
Bryan Bahnmiller
ISD Business Continuity
Pier 1 Imports, Inc.
Pier 1 Place
Fort Worth, TX
817-252-8570
=20
------_=_NextPart_001_01C5D8EB.3518FDCB
Content-Type: text/html;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:st1=3D"urn:schemas-microsoft-com:office:smarttags" =
xmlns=3D"http://www.w3.org/TR/REC-html40";>
<head>
<meta http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<meta name=3DGenerator content=3D"Microsoft Word 11 (filtered medium)">
<o:SmartTagType =
namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags"
name=3D"State"/>
<o:SmartTagType =
namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags"
name=3D"City"/>
<o:SmartTagType =
namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags"
name=3D"place"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=3DEN-US link=3Dblue vlink=3Dpurple>
<div class=3DSection1>
<div>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>All,<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'> Has anyone else attempted =
to run
tape drives over a long distance FibreChannel connection? We are =
trying
to run backups to tape over a metro FC connection. It works – =
slowly. I
was wondering, before we spent a lot of time down at a very low level =
–
if anyone else has tried this successfully =
before.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'> We are running NBU 5.1mp3a =
on a
W2K3 master with AIX media servers. We are running to SAN connected tape =
drives
locally and remotely. The tape drives are IBM LTO2 in ADIC Scalar =
I2K’s.
The SAN is Cisco MDS9000 series switches. The remote data center is =
connected
to the local one via long distance FC (approx 23 miles.) =
<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'> We have set up a local =
media
server to run tape backup jobs to the local tape drives as well as the =
remote
drives. With a standard setup of clients, server, and policy we will see =
upwards
of 50 MB/s going to a local tape drive. With the exact same =
configuration,
except changing the storage unit to the STU with the remote tape drives, =
we
will see about 20 MB/s to the remote tape =
drive.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'> Is this due to the latency =
in the
long distance over Fibre Channel? Or are we missing =
something?<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'> =
<st1:City
w:st=3D"on"><st1:place =
w:st=3D"on">Bryan</st1:place></st1:City><o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>Bryan =
Bahnmiller</span></font><font
size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>ISD Business =
Continuity</span></font><font
size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>Pier 1 Imports, =
Inc.</span></font><font
size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>Pier 1 Place</span></font><font =
size=3D2
color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
<p class=3DMsoNormal><st1:place w:st=3D"on"><st1:City w:st=3D"on"><font =
size=3D2
color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:black'>Fort Worth</span></font></st1:City><font size=3D2 =
color=3Dblack
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:black'>, <st1:State
w:st=3D"on">TX</st1:State></span></font></st1:place><font size=3D2 =
color=3Dblack
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:black'><o:p></o:p></spa=
n></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>817-252-8570</span></font><font =
size=3D2
color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>=
</div>
</div>
</body>
</html>
------_=_NextPart_001_01C5D8EB.3518FDCB--
|
