Comparison between various SCSI targets for Linux added
authorvlnb <vlnb@d57e44dd-8a1f-0410-8b47-8ef2f437770f>
Sat, 4 Apr 2009 18:48:12 +0000 (18:48 +0000)
committervlnb <vlnb@d57e44dd-8a1f-0410-8b47-8ef2f437770f>
Sat, 4 Apr 2009 18:48:12 +0000 (18:48 +0000)
git-svn-id: https://scst.svn.sourceforge.net/svnroot/scst/trunk@750 d57e44dd-8a1f-0410-8b47-8ef2f437770f

18 files changed:
www/comparison.html [new file with mode: 0644]
www/contributing.html
www/downloads.html
www/handler_fileio_tgt.html
www/images/Orange.css
www/index.html
www/scst_admin.html
www/scst_pg.html
www/scstvsstgt.html
www/sponsorship.html
www/target_fcoe.html
www/target_iscsi.html
www/target_lsi.html
www/target_old.html
www/target_qla22xx_23xx.html
www/target_qla_isp.html
www/target_srp.html
www/targets.html

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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">\r
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\r
+<head>\r
+<meta name="Keywords" content="Generic SCSI Target Middle Level for Linux" />\r
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />\r
+<meta name="author" content="Daniel Fernandes"/>\r
+<meta name="Robots" content="index,follow" />\r
+<link rel="stylesheet" href="images/Orange.css" type="text/css" />     \r
+<title>SCST: Generic SCSI Target Middle Level for Linux</title>\r
+</head>\r
+\r
+<body>\r
+<!-- wrap starts here -->\r
+<div id="wrap"> \r
+       <div id="header">       \r
+               <div class="logoimg"></div><h1 id="logo"><span class="orange"></span></h1>\r
+               <h2 id="slogan">SCSI Target Middle Level for Linux</h2> \r
+       </div>          \r
+               \r
+       <div id="menu">\r
+               <ul>\r
+                       <li id="sponsorship"><a href="sponsorship.html">Sponsorship</a></li>
+                       <li><a href="index.html">Home</a></li>
+                       <li><a href="http://www.sourceforge.net/projects/scst">Main</a></li>\r
+                       <li><a href="targets.html">Drivers</a></li>\r
+                       <li><a href="downloads.html">Downloads</a></li>\r
+                       <li><a href="contributing.html">Contributing</a></li>\r
+                       <li id="current"><a href="comparison.html">Comparison</a></li>          \r
+               </ul>\r
+       </div>\r
+       \r
+       <!-- content-wrap starts here -->       \r
+       <div id="content-wrap">  \r
+                       <div id="sidebar">\r
+                               <h1>Target Drivers</h1>\r
+                               <ul class="sidemenu">
+                                       <li><a href="comparison.html">Features comparison</a></li>
+                                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>
+                               </ul>
+                       </div>          \r
+       
+                       <div id="main">
+                               <h1>Features comparison between Linux SCSI targets</h1>\r
+
+                               <p><small>As on April 2009</small></p>
+
+<table bgcolor="#F0F0F0" border="1" cols="5" cellspacing="1" cellpadding="7" style="text-align:center" width="620">
+
+<tr>
+<th>
+</th><th> <a href="http://scst.sourceforge.net/" title="http://scst.sourceforge.net/" rel="nofollow">SCST</a>
+</th><th> <a href="http://stgt.berlios.de/" title="http://stgt.berlios.de/" rel="nofollow">STGT</a>
+</th><th> <a href="http://iscsitarget.sourceforge.net/" title="http://iscsitarget.sourceforge.net/" rel="nofollow">IET</a>
+</th><th> <a href="http://linux-iscsi.org/" title="http://linux-iscsi.org/" rel="nofollow">LIO v3.0</a>
+</th></tr>
+
+<tr bgcolor="#E0E0E0">
+<td colspan="5"> <b>General</b>
+</td></tr>
+<tr>
+<th align="left"> Upstream kernel</th>                                 <td> - </td>            <td> Kernel part </td>  <td> - </td>            <td> - </td>            
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> Generic Target Engine </th>                          <td> + </td>            <td> + </td>            <td> iSCSI only </td>   <td> Under development </td>            
+</tr>
+<tr>                                                                                            
+<th align="left"> Architecture </th>                                   <td> Kernel only</td>   <td> User space only
+                                                                                               <sup><A HREF="#1">1</A> 
+                                                                                               </sup> </td>            <td> Split <sup>
+                                                                                                                       <A HREF="#2">2</A>
+                                                                                                                       </sup> </td>            <td> Kernel only </td>
+</tr>                                                                                                                           
+<tr>                                                                                                                           
+<th align="left"> Stability </th>                                      <td> + </td>            <td> + </td>            <td> + </td>            <td> Heavy development </td>
+</tr>                                                                                                                           
+<tr>                                                                                                                           
+<th align="left"> Performance </th>                                    <td> ***** </td>        <td> ***</td>           <td> **** </td>         <td> ****
+                                                                                                                                               <sup><A HREF="#3">3</A></sup></td>
+</tr>                                                                                                                           
+<tr>                                                                                                                           
+<th align="left"> Zero-Copy </th>                                      <td> **** </td>         <td> *** 
+                                                                                               <sup><A HREF="#4">4</A> 
+                                                                                               </sup> </td>            <td> **** </td>         <td> **** </td>         
+</tr>
+<tr>                                                                                            
+<th align="left"> Support for transports without expecting
+transfer values (parallel SCSI, SAS) </th>                             <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> User Interface </th>                                 <td> ProcFS </td>       <td> Custom </td>       <td> IOCTL/ProcFS </td> <td> ConfigFS/IOCTL </td>
+</tr>                                                                                                                           
+
+                                                                                                
+<tr bgcolor="#E0E0E0">                                                                                                          
+<td colspan="5"> <b>Major features</b>                                                                                          
+</td></tr>
+<tr>                                                                                            
+<th align="left"> Target drivers in kernel space </th>                 <td> + </td>            <td> + </td>            <td> - </td>            <td> Under development </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Target drivers in user space </th>                   <td> + </td>            <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Backstorage handlers in kernel space </th>           <td> + </td>            <td> - </td>            <td> - </td>            <td> + </td>
+</tr>                                                                                                                           
+<tr>                                                                                            
+<th align="left"> Backstorage handlers in user space </th>             <td> + </td>            <td> + </td>            <td> - </td>            <td> - </td>
+</tr>                                                                                           
+<tr>                                                                                            
+<th align="left"> Local access to emulated backstorage devices</th>    <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Advanced devices visibility management </th>         <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Support for Asynchronous Event Notifications
+(AEN) </th>                                                            <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> AEN for devices added/removed</th>                   <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> AEN for devices resized</th>                         <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                                                            
+<th align="left"> Bidirectional Commands </th>                         <td> + <sup>
+                                                                       <A HREF="#5">5</A>
+                                                                       </sup></td>             <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Extended CDB (size >16 bytes) </th>                  <td> + <sup>
+                                                                       <A HREF="#5">5</A>
+                                                                       </sup></td>             <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Descriptor sense support </th>                       <td> + </td>            <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<th align="left"> RESERVE/RELEASE                                                                                                       
+<small> (Windows 2003 clustering) </small></th>                                <td> + </td>            <td> + </td>            <td> + </td>            <td> + </td>
+</tr>
+<th align="left"> Safe RESERVE/RELEASE implementation according to
+SCSI requirements <sup><A HREF="#6">6</A></sup></th>                   <td> Safe </td>         <td> Safe </td>         <td> Not safe </td>     <td> Not safe </td>
+</tr>
+<th align="left"> Safe implementation of Task Management commands 
+<sup><A HREF="#7">7</A></sup></th>                                     <td> Safe </td>         <td> Not safe </td>     <td> Not safe </td>     <td> Not safe </td>
+</tr>
+<tr>                                                                                                                            
+<th align="left"> Persistent Reservations <br/>
+<small> (Windows 2008 clustering)</small></th>                         <td> - </td>            <td> - </td>            <td> - </td>            <td> Under development </td>            
+</tr>                                                                                                                           
+<tr>                                                                                            
+<th align="left"> ALUA </th>                                           <td> - </td>            <td> - </td>            <td> - </td>            <td> Under development </td>            
+</tr>                                                                                           
+<tr>                                                                                                                            
+<th align="left"> Failover Clustering </th>                            <td> + </td>            <td> ? </td>            <td> + </td>            <td> + </td>            
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> SCSI MIBs </th>                                      <td> - </td>            <td> - </td>            <td> - </td>            <td> + </td>            
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> Cluster Storage Integration </th>                    <td> - </td>            <td> - </td>            <td> - </td>            <td> VHACS </td>        
+</tr>                                                                                                                           
+                                                                                                
+                                                                                                
+<tr bgcolor="#E0E0E0">                                                                                                          
+<td colspan="5"> <b>Supported SCSI transports</b>                                                                                          
+</td></tr>                                                                                                                      
+<tr>                                                                                                                            
+<th align="left"> iSCSI </th>                                          <td> + </td>            <td> + </td>            <td> + </td>            <td> + </td>
+</tr>                                                                                                                           
+<tr>                                                                                            
+<th align="left"> Fibre Channel </th>                                  <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                                                           
+<th align="left"> SRP </th>                                            <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> iSER </th>                                           <td> - </td>            <td> + </td>            <td> - </td>            <td> - </td>            
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> Parallel (Wide) SCSI </th>                           <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                                                            
+<th align="left"> SAS </th>                                            <td> Under
+                                                                        development </td>      <td> - </td>            <td> - </td>            <td> - </td>            
+</tr>
+<tr>                                                                                                                            
+<th align="left"> FCoE </th>                                           <td> Under
+                                                                        development </td>      <td>Under
+                                                                                                development</<td>      <td> - </td>            <td> - </td>    
+</tr>                                                                                                                                                 
+<tr>                                                                                            
+<th align="left"> IBM pSeries Virtual SCSI </th>                       <td> - </td>            <td> + </td>            <td> - </td>            <td> - </td>
+</tr>                                                                                     
+                                                                                                
+<tr bgcolor="#E0E0E0">                                                                                                          
+<td colspan="5"> <b>Supported backstorage</b>                                                   
+</td></tr>
+<tr>                                                                                            
+<th align="left"> Kernel side FILEIO </th>                             <td> + </td>            <td> - </td>            <td> + </td>            <td> + </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Kernel side BLOCKIO </th>                            <td> + </td>            <td> - </td>            <td> + </td>            <td> + </td>            
+</tr>
+<tr>                                                                                            
+<th align="left"> User space side FILEIO </th>                         <td> + </td>            <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> SCSI Pass-through </th>                              <td> + </td>            <td> - </td>            <td> - </td>            <td> Single initiator only, not enforced 
+                                                                                                                                               <sup><A HREF="#8">8</A></sup></td>
+</tr>                                                                                           
+<tr>                                                                                                                            
+<th align="left"> 4k sectors support in pass-through mode </th>                <td> + </td>            <td> - </td>            <td> - </td>            <td> ? </td>
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> 4k, 2k, 1k and 512 byte sectors emulation
+in modes, other than pass-through </th>                                        <td> + </td>            <td> - </td>            <td> - </td>            <td> + </td>            
+</tr>
+<tr>                                                                                            
+<th align="left"> CDROM emulation from ISO files </th>                 <td> + </td>            <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+                                                                                                
+<tr bgcolor="#E0E0E0">                                                                                                          
+<td colspan="5"> <b>iSCSI Target</b>                                                                                            
+</td></tr>
+<tr>                                                                                            
+<th align="left"> Architecture </th>                                   <td> Split <sup>
+                                                                       <A HREF="#2">2</A>
+                                                                       </sup> </td>            <td> User space 
+                                                                                               only </td>              <td> Split <sup>
+                                                                                                                       <A HREF="#2">2</A>
+                                                                                                                       </sup></td>             <td> Kernel only </td>
+</tr>
+<tr>                                                                                                                            
+<th align="left"> MC/S </th>                                           <td> - </td>            <td> - </td>            <td> - </td>            <td> + </td>
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> Max ErrorRecoveryLevel </th>                         <td> 0 </td>            <td> 0 </td>            <td> 0 </td>            <td> 2 </td>            
+</tr>                                                                                                                           
+<tr>                                                                                                                            
+<th align="left"> Bidirectional Commands </th>                         <td> + <sup>
+                                                                       <A HREF="#5">5</A>
+                                                                       </sup></td>             <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Extended CDB (size >16 bytes) </th>                  <td> + <sup>
+                                                                       <A HREF="#5">5</A>
+                                                                       </sup></td>             <td> + </td>            <td> - </td>            <td> - </td>
+</tr>
+<tr>                                                                                            
+<th align="left"> Support for Asynchronous Event Notifications
+(AEN) </th>                                                            <td> + </td>            <td> - </td>            <td> - </td>            <td> - </td>
+</tr>                                                                                                                           
+<th align="left"> Safe implementation of connections and sessions
+reinstatement <sup><A HREF="#9">9</A></sup></th>                       <td> Safe </td>         <td> Not safe </td>     <td> Not safe </td>     <td> Not safe </td>
+</tr>
+<tr>                                                                                                                            
+<th align="left"> iSCSI MIBs </th>                                     <td> - </td>            <td> - </td>            <td> - </td>            <td> - 
+                                                                                                                                               <sup><A HREF="#10">10</A></sup></td>
+</tr>                                                                                                                           
+</table>
+
+<br/>
+<p><strong><big><u>REMARKS:</u></big></strong></p>
+
+<p><A NAME="1"></A> 1. STGT has SCSI target engine in user space and small hooks in the kernel to interact with in-kernel target drivers.</p>
+
+<p><A NAME="2"></A> 2. All iSCSI management implemented in user space and actual data transfers in kernel space without user space involved.</p>
+
+<p><A NAME="3"></A> 3. The conclusion made by source code study only. LIO should have performance
+                      on the IET level or slightly less, because of more processing overhead. </p>
+
+<p><A NAME="4"></A> 4. Some zero-copy functionality isn't available from user space. For instance, zero-copy send to a socket.</p>
+
+<p><A NAME="5"></A> 5. Not well tested, because at the moment there is no backend using this functionality.</p>
+
+<p><A NAME="6"></A> 6. SCSI requires that if an initiator clears reservation held by another initiator, the reservation holder must be notified
+                      about the reservation clearance. Otherwise, several initiators can at the same time change supposed to be protected by the
+                      reservation data, which can corrupt them.</p>
+
+<p><A NAME="7"></A> 7. After a task management command completed and corresponding response was sent to initiator, who sent that task management
+                      command, all the affected SCSI commands must get into a state, where they can't affect following after
+                      the tasks management response commands from this initiator. This is the safe implementation.
+                      The unsafe implementation only marks all the affected
+                      SCSI commands as aborted and then immediately send task management response to the initiator. This implementation only
+                      guarantees that the initiator will never receive responses from those commands, but it doesn't
+                      guarantee that none of those commands will get executed by backstorage <strong>*AFTER*</strong> any
+                      SCSI command, which initiator will send after it received the task management response thinking
+                      that all the aborted commands actually fully aborted. This could lead to a data corruption.</p>
+
+<p><A NAME="8"></A> 8. LIO doesn't emulate all the necessary SCSI host functionality to allow to share a SCSI device
+                      in pass-through mode to several initiators. It can only pass SCSI commands from initiator to
+                      the SCSI device. This is safe only if there is only one initiator. This limitation
+                      isn't enforced anyhow by LIO. You can find more technical information about that in
+                      <a href="http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg06911.html">
+                       http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg06911.html</a></p>
+
+<p><A NAME="5"></A> 9. Connections and sessions reinstatement is, basically, a kind of Task Management command.
+                      For instance, open-iscsi uses it as such in eh_target_reset_handler() callback. So, similarly
+                      to <A HREF="#7">(7)</A> above, a safe implementation
+                      must not accept SCSI commands from new connection/session until all the SCSI commands in
+                      being reinstated connection/session get into a state, where they can't affect the new commands.</p>
+
+<p><A NAME="10"></A> 10. SCSI-MIB (RFC 4455) - not supported;
+                       SBE-SCSI-MIB - supported by LIO v2.6, not supported by LIO v3.0;
+                       SBE-ISCSI-MIB - supported by LIO v2.6, not supported by LIO v3.0;
+                       SBE-IPS-AUTH-MIB - supported by LIO v2.6, not supported by LIO v3.0
+               
+</p>
+
+<br/>
+<hr style="width: 100%; height: 1px; margin-left: 15px; margin-right: 0px;">
+<br/>
+
+<p><strong>P.S.</strong> LIO has similar comparison
+<a href="http://www.linux-iscsi.org/index.php/Overview_Page">page</a>. It is very much 
+wrong about SCST. I asked that page author, Nicholas Bellinger, to 
+correct the wrong items (see <a href="http://sourceforge.net/mailarchive/forum.php?thread_name=49AECE0B.5030009%40vlnb.net&forum_name=scst-devel">my e-mail</a>), 
+but Nicholas Bellinger refused to do it. Moreover, he blocked my access 
+to the LIO mailing list, preventing me from tell that to the interested 
+people myself. After all our previous discussions and with his skills 
+and experience I can't believe that Nicholas Bellinger doesn't know that 
+SCST is a lot more generic than LIO and has zero-copy in all the same 
+places, where LIO has. So, that comparison page looks like rather a 
+deliberate cheating attempt. Definitely, SCST in all major 
+technical areas is so much superior over LIO, so Nicholas Bellinger started 
+attacking people's perception about SCST trying to inspire them the 
+opposite.</strong></p>
+
+                       </div> \r
+       </div>\r
+</div>         \r
+<!-- wrap ends here -->\r\r
+<!-- footer starts here -->            \r
+               <div id="footer">\r
+                       <p>\r
+                       &copy; Copyright 2008 <b><font color="#EC981F">Vladislav Bolkhovitin & others.</font>&nbsp;&nbsp;\r
+                       Design by: <b><font color="#EC981F">Daniel Fernandes</font></b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;         \r
+                       \r
+                       </p>            \r
+               </div>  \r
+<!-- footer ends here -->\r
+</body>\r
+</html>
index adf7016..9367cb3 100644 (file)
@@ -23,7 +23,7 @@
                        <li><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li id="current"><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>  \r
        <div id="content-wrap">  \r
index 090160d..5189319 100644 (file)
@@ -25,7 +25,7 @@
                        <li><a href="targets.html">Drivers</a></li>\r
                        <li id="current"><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>             \r
+                       <li><a href="comparison.html">Comparison</a></li>               \r
                </ul>\r
        </div>\r
        \r
index 547ab2c..51b3d12 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>             \r
+                       <li><a href="comparison.html">Comparison</a></li>               \r
                </ul>\r
        </div>\r
        \r
index 52ef03e..5e2bfca 100644 (file)
@@ -196,8 +196,8 @@ div.logoimg {
        margin-left: 15px;\r
        padding: 0;\r
        /*width: 54%;*/
-       width: 72%;*    \r
-       border-left: 1px solid #f2f2f2;\r
+       width: 72%;     \r
+       /*border-left: 1px solid #f2f2f2;\r*/
 }\r
 \r
 .post-footer {\r
index 627db0b..dbb6575 100644 (file)
@@ -23,7 +23,7 @@
                        <li><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>  \r
        <div id="content-wrap">\r
index f949d19..ca66f0f 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>             \r
+                       <li><a href="comparison.html">Comparison</a></li>               \r
                </ul>\r
        </div>\r
        \r
index a220470..48ff20d 100644 (file)
@@ -24,7 +24,7 @@
                        <li><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>  \r
        <div id="content-wrap">  \r
index 1a4ea9b..8e16e15 100644 (file)
                        <li><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li id="current"><a href="scstvsstgt.html">SCST vs STGT</a></li>                \r
+                       <li id="current"><a href="comparison.html">Comparison</a></li>          \r
                </ul>\r
        </div>\r
        \r
        <!-- content-wrap starts here -->       \r
        <div id="content-wrap">  \r
+                       <div id="sidebar">\r
+                               <h1>Target Drivers</h1>\r
+                               <ul class="sidemenu">
+                                       <li><a href="comparison.html">Features comparison</a></li>
+                                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>
+                               </ul>
+                       </div>          \r
+       
                        <div id="main">
                                <h1>SCST vs STGT</h1>\r
                                <p><strong><a href="http://stgt.berlios.de/">STGT</a></strong> is alternative, independent from SCST implementation 
index f174724..fd30234 100644 (file)
@@ -23,7 +23,7 @@
                        <li><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>  \r
        <div id="content-wrap">  \r
@@ -35,7 +35,7 @@
                                growing demand in a such subsystem. At the same time, SCST has reached 
                                <strong>mature and stable </strong> state and <strong>capable to satisfy
                                </strong> all the requirements. See
-                               <a href="scstvsstgt.html">SCST vs STGT</a> page for more details.</p>
+                               <a href="comparison.html">Comparison</a> page for more details.</p>
 
                                <p>Also is has <strong>the widest choice</strong> of supported SCSI transports
                                (iSCSI, Fibre Channel, Infiniband SRP, parallel SCSI, SAS), <strong>the
index 6cc299d..0816055 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>\r
        \r
index ae97148..d8b6ca5 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>             \r
+                       <li><a href="comparison.html">Comparison</a></li>               \r
                </ul>\r
        </div>\r
        \r
index 0c91348..23e3576 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>             \r
+                       <li><a href="comparison.html">Comparison</a></li>               \r
                </ul>\r
        </div>\r
        \r
index 188c90f..91122ef 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>\r
        \r
index 6736cc7..3840ea0 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                             \r
+                       <li><a href="comparison.html">Comparison</a></li>                               \r
                </ul>\r
        </div>\r
        \r
index 1f9f482..3264a37 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                             \r
+                       <li><a href="comparison.html">Comparison</a></li>                               \r
                </ul>\r
        </div>\r
        \r
index 0dfad56..63a4a17 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>                     \r
+                       <li><a href="comparison.html">Comparison</a></li>                       \r
                </ul>\r
        </div>\r
        \r
index 78e1c6a..43c9195 100644 (file)
@@ -25,7 +25,7 @@
                        <li id="current"><a href="targets.html">Drivers</a></li>\r
                        <li><a href="downloads.html">Downloads</a></li>\r
                        <li><a href="contributing.html">Contributing</a></li>\r
-                       <li><a href="scstvsstgt.html">SCST vs STGT</a></li>             \r
+                       <li><a href="comparison.html">Comparison</a></li>               \r
                </ul>\r
        </div>\r
        \r