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Old 06-25-2009, 05:47 PM   #1
sjarade
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Registered: Jun 2009
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Question SAN errors while rebooting LINUX server


I have LINUX server connected to EMC Clariion storage.
When LINUX server reboots, it gives lot of storage related errors in boot process as follows;

Jun 20 18:14:22 lServer1 kernel: end_request: I/O error, dev sdc, sector 41943032
Jun 20 18:14:22 lServer1 kernel: end_request: I/O error, dev sdc, sector 41943032
Jun 20 18:14:22 lServer1 kernel: end_request: I/O error, dev sdc, sector 41943032
Jun 20 18:14:16 lServer1 kernel: end_request: I/O error, dev sdn, sector 0
Jun 20 18:14:16 lServer1 kernel: end_request: I/O error, dev sdn, sector 0
and so on..............................

My question is how to improve the LINUX boot process to eliminate these SAN related errors. Do I need to start or stop some hardware scanning processes???

Thanks in advance.
Sam
 
Old 06-26-2009, 10:59 AM   #2
Fantasio
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Registered: Nov 2007
Location: Vinsobres - Drome - France
Distribution: SuSE Linux 11.3
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Hi,
First of all, what's your distro, it may help us/you for a solution.
I think it's possible to avoid hardware scanning but I don't remember how to do
 
Old 06-26-2009, 12:09 PM   #3
Fantasio
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Registered: Nov 2007
Location: Vinsobres - Drome - France
Distribution: SuSE Linux 11.3
Posts: 152

Rep: Reputation: 19
hmmm, I remember under EMC Symmetrix when a disk is mapped & masked to a server, an other virtual disk is also presented.
The second disk I consider as virtual cannot be hide but it's considered as inconsistent.
What does "fdisk -l" give as result.
 
  


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