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List:       hpux-admin
Subject:    [HPADM] HP-UX connected to a EMC CX700 SAN
From:       Thomas Northup <thomaslnorthup () yahoo ! com>
Date:       2007-11-18 13:52:32
Message-ID: 607127.21726.qm () web54207 ! mail ! re2 ! yahoo ! com
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Help!
   
  We have HP-UX 11i connected to a EMC CX700 SAN.
   
  Sometimes when we reboot or replace or update the firmware on a Cisco switch in our \
SAN fabric it causes the drive names to change in HP-UX.    
  So the names are something like c20t0d0, c22t0d0, c24t0d0, c26t0d0. After the \
switch change they are c28t0d0, c30t0d0, c32t0d0, c34t0d0. (This is just a made up \
example).  
  We can run ioscan and insf and powermt and get good paths to the new drives and \
then remove the old paths and reboot and it is ok….   Where is the problem? Where \
does the fix lie? How do we keep the drive names from changing?  
  Thanks
  Tom

       
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[Attachment #3 (text/html)]

<div class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" \
size=3>Help!</FONT></div>  <div class=MsoNormal style="MARGIN: 0in 0in \
0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" \
/><o:p><FONT face="Times New Roman" size=3>&nbsp;</FONT></o:p></div>  <div \
class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>We \
have HP-UX 11i&nbsp;connected to a EMC CX700 SAN.</FONT></div>  <div class=MsoNormal \
style="MARGIN: 0in 0in 0pt"><o:p><FONT face="Times New Roman" \
size=3>&nbsp;</FONT></o:p></div>  <div class=MsoNormal style="MARGIN: 0in 0in \
0pt"><FONT size=3><FONT face="Times New Roman">Sometimes when we reboot or replace or \
update the firmware on a Cisco switch in our SAN fabric it causes the drive names to \
change in HP-UX.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></FONT></div>  \
<div class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face="Times New Roman" \
size=3>&nbsp;</FONT></o:p></div>  <div  class=MsoNormal style="MARGIN: 0in 0in \
0pt"><FONT face="Times New Roman" size=3>So the names are something like c20t0d0, \
c22t0d0, c24t0d0, c26t0d0. After the switch change they are c28t0d0, c30t0d0, \
c32t0d0, c34t0d0. (This is just a made up example).</FONT></div>  <div \
class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face="Times New Roman" \
size=3>&nbsp;</FONT></o:p></div>  <div class=MsoNormal style="MARGIN: 0in 0in \
0pt"><FONT face="Times New Roman" size=3>We can run ioscan and insf and powermt and \
get good paths to the new drives and then remove the old paths and reboot and it is \
ok…. </FONT></div>  <div class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT \
face="Times New Roman" size=3>Where is the problem?&nbsp;</FONT><FONT face="Times New \
Roman" size=3>Where does the fix lie? How do we keep the drive names from \
changing?</FONT></div>  <div>&nbsp;</div>  <div>Thanks</div>  <div>Tom</div><p>&#32;  \
<hr size=1>Be a better pen pal.  Text or chat with friends inside Yahoo! Mail. <a \
href="http://us.rd.yahoo.com/evt=51732/*http://overview.mail.yahoo.com/">See how.</a>


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