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<font size=3>At 06:14 AM 7/6/2005, Rimmer, Todd wrote:<br>
</font><blockquote type=cite class=cite cite="">
<font face="arial" size=2 color="#0000FF">I would like to clarify the
comment on SRP. There are companies presently shipping and
demonstrating SRP native IB storage. For example:<br>
</font><font size=3>
</font><font face="arial" size=2 color="#0000FF">Engenio (formerly
LSI)<br>
</font><font size=3>
</font><font face="arial" size=2 color="#0000FF">Raytheon<br>
</font><font size=3>
</font><font face="arial" size=2 color="#0000FF">Data Direct<br>
</font><font size=3>
</font><font face="arial" size=2 color="#0000FF">Mellanox<br>
</font><font size=3> <br>
</font><font face="arial" size=2 color="#0000FF">SRP was designed for
highly optimized storage access across an RDMA capable transport, and
hence is capable of very high performance.<br>
</font><font size=3> <br>
</font><font face="arial" size=2 color="#0000FF">Longer term the storage
vendors anticipate that iSCSI will be the focus for long haul (remote
backup, etc) type solutions, while IB Native Storage and FC will be the
focus for data center high performance storage
solutions.</font></blockquote><br>
iSCSI within the data center is quite real for many applications
especially blades where there is already an Ethernet interface. The
reason for iSER was to take advantage of the iSCSI ecosystem while
providing a RDMA focused data mover. SRP is primarily a data mover
and does not define the rest of the management, etc. interfaces.
When used to move data to a FC, the FC infrastructure is leveraged but
SRP by itself does nothing really in this regard. No one stated
that SRP could not deliver performance only that the rest of the
infrastructure is not defined and must rely upon other standards /
plug-ins / etc. I do not want to get into a vision / marketing
debate - was just explaining why we created iSER instead of just
enhancing SRP.<br><br>
Mike<br><br>
<blockquote type=cite class=cite cite=""><font size=3> <br>
</font><font face="arial" size=2 color="#0000FF">Todd R.<br>
</font>
<dl>
<dd><font face="tahoma" size=2>-----Original Message-----<br>
<dd>From:</b> Michael Krause
[<a href="mailto:krause@cup.hp.com" eudora="autourl">
mailto:krause@cup.hp.com</a>]<br>
<dd>Sent:</b> Tuesday, July 05, 2005 12:28 PM<br>
<dd>To:</b> Ian Jiang; openib-general@openib.org<br>
<dd>Subject:</b> Re: [openib-general] [iser]about the target<br><br>
</font>
<dd><font size=3>At 06:07 PM 7/4/2005, Ian Jiang wrote:<br>
<blockquote type=cite class=cite cite="">
<dd>Hi!<br>
<dd>I am new to the iSER.<br>
<dd>On "
<a href="https://openib.org/tiki/tiki-index.php?page=iSER" eudora="autourl">
https://openib.org/tiki/tiki-index.php?page=iSER</a>", it is said
that iSER currently contains initiator only (no target). Will the target
come out later? How did they test the iSER initiator without a iSER
target?<br>
<dd>Could you give some explaination?</blockquote><br>
<dd>From a practical perspective, there are very few iSCSI targets
shipping today. Most people had envisioned iSER over IB to a
gateway Ethernet device since native IB storage is also quite rare in
terms of real product. For many of us, our push for iSER over IB
was to replace SRP which has a deficient ecosystem thus not really used
beyond some basic Fibre Channel gateway cards. <br><br>
<dd>Mike<br><br>
<blockquote type=cite class=cite cite="">
<dd>Thanks!<br><br>
<br><br>
<dd>Ian Jiang<br>
<dd>ianjiang91@hotmail.com<br>
<dd>----<br>
<dd>Computer Architecture Laboratory<br>
<dd>Institute of Computing Technology<br>
<dd>Chinese Academy of Sciences<br>
<dd>Beijing,P.R.China<br>
<dd>Zip code: 100080<br>
<dd>Tel: +86-10-62564394(office)<br><br>
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