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--- vlsi:computing_troubleshooting [01/05/2013 21:12]
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+++ vlsi:computing_troubleshooting [30/07/2013 21:29]
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 ====== Troubleshooting ======
-[ __[[vlsi:home|Home]]__ ]
+[ __[[vlsi:home|VLSI Home]]__ ]
 [ __[[vlsi:workbook|VLSI Design WorkBook]]__ ]
 [ __[[vlsi:computing_main#contents|Back to index]]__ ]
@@ Linea 27: / Linea 27: @@
 In this page we provide further information and guidelines you need to know about working with
-VLSI computing resources and a collection of some common issues or troubles which can arise
+VLSI computing resources, along with a collection of some common issues and troubles which can
-working with VLSI lab tools.
+arise working with VLSI lab tools.
 ===== Shutdowns and reboots =====
-Machines part of the VLSI cluster are always running, providing a 24/7/365 service. Each machine is
+Machines part of the VLSI cluster are always-on, providing a 24/7/365 service. Moreover, each machine is
 a multi-user system and different users might have jobs running on the same machine. Thus if you are
 physically working in the VLSI lab **never shutdown yourself a machine** at the end of your session work!
-Just perform a logout instead.
+Just perform a logout instead. \\
 Machine **reboots** migh be required in case of crashes, hangs or freezes, but always address
-your request to the VLSI system administrator before (//[[mazza@NOSPAMto.infn.it]]//, remove NOSPAM in the address).
+your issues to the VLSI system administrator before (//[[mazza@NOSPAMto.infn.it]]//, remove NOSPAM in the address).
+Global cluster shutdowns might be planned by the system administrator
+(always before a scheduled electric power interruption to the old building area).
+In that cases, save your work, close all your running applications and then logout.
 ===== Power outage =====
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 Users working remotely from a machine running a fresh installation of **Scientific Linux 6.x** might need some additional fonts
-required by Cadence graphical front ends. If you have administration privileges install the missing fonts using the yum package manager:
+required by Cadence graphical front ends. If you have administration privileges install the missing fonts using the yum package manager,
 <code>
 sudo yum install xorg-x11-font*
+</code>
+or
+<code>
 # yum install xorg-x11-font*
 </code>
@@ Linea 155: / Linea 161: @@
 due to a Cadence crash
-See also //[[https://intranet.ece.cornell.edu/computing/kb_articles/kba_detail.cfm?article_id=11]]//
+Each time you logout, kill all process that you have started including "defunct" process.
- Each time you logout, kill all process that you have started including "defunct" process.
 kill -9 -1
@@ Linea 188: / Linea 191: @@
+See also
+//[[https://intranet.ece.cornell.edu/computing/kb_articles/kba_detail.cfm?article_id=11]]//