Failsafe, shared SCSI, and linux's software RAID

"Dan Freed" <[email protected]> Tue, 9 Jul 2002 13:35:05 -0500
Newsgroups gmane.linux.failsafe
Message-ID <[email protected]>
Does Failsafe and Linux's software RAID (specifically mirroring) work reliably together on shared SCSI disks?

 

Basically I am looking to use Failsafe to replace heartbeat (failsafe seems more robust and complete) to control a 2 node HA cluster.  I would like to use Linux's built in software RAID to mirror the shared disks in the cluster but I am worried about the data integrity when the primary node fails.  Will the software RAID on the secondary node be able to bring the disks up and keep them in synch?

 

Any thoughts are welcomed.

 

Thanks

 

Daniell Freed

Server Systems Team

Epic Systems Corp.

[email protected]
header.htm (text/html, 3.9 KB)
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">

<head>
<meta http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<meta name=ProgId content=Word.Document>
<meta name=Generator content="Microsoft Word 10">
<meta name=Originator content="Microsoft Word 10">
<link id=Main-File rel=Main-File href="cid:[email protected]">
</head>

<body lang=EN-US link=blue vlink=purple>

<div style='mso-element:header' id=eh1>

<p class=MsoHeader><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

<div style='mso-element:header' id=h1>

<p class=MsoHeader><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

<div style='mso-element:footer' id=ef1>

<p class=MsoFooter><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

<div style='mso-element:footer' id=f1>

<p class=MsoFooter><!--[if supportFields]><font size=1><span style='font-size:
4.0pt;mso-bidi-font-size:12.0pt'><span style='mso-element:field-begin'></span><span 
style='mso-spacerun:yes'> </span>FILENAME \p \* MERGEFORMAT <span 
style='mso-element:field-separator'></span></span></font><![endif]--><font
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span
style='mso-no-proof:yes'>C:\Documents and Settings\dfreed\Application
Data\Microsoft\Templates\Normal.dot</span></span></font><!--[if supportFields]><font 
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span 
style='mso-element:field-end'></span></span></font><![endif]--><font size=1><span
style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span style='mso-tab-count:
1'>                                                                                                                </span>
-</span></font><!--[if supportFields]><font size=1><span style='font-size:4.0pt;
mso-bidi-font-size:12.0pt'><span style='mso-element:field-begin'></span> PAGE 0 
\* MERGEFORMAT <span style='mso-element:field-separator'></span></span></font><![endif]--><font
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span
style='mso-no-proof:yes'>1</span></span></font><!--[if supportFields]><font 
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span 
style='mso-element:field-end'></span></span></font><![endif]--><font size=1><span
style='font-size:4.0pt;mso-bidi-font-size:12.0pt'>- <span style='mso-tab-count:
1'>                                                                                                                                                                                                                                                   </span></span></font><!--[if supportFields]><font 
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span 
style='mso-element:field-begin'></span><span 
style='mso-spacerun:yes'> </span>SAVEDATE<span style='mso-spacerun:yes'>  
</span>\* MERGEFORMAT <span style='mso-element:field-separator'></span></span></font><![endif]--><font
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span
style='mso-no-proof:yes'>0/0/0000 0:00 AM</span></span></font><!--[if supportFields]><font 
size=1><span style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><span 
style='mso-element:field-end'></span></span></font><![endif]--><font size=1><span
style='font-size:4.0pt;mso-bidi-font-size:12.0pt'><o:p></o:p></span></font></p>

</div>

<div style='mso-element:header' id=fh1>

<p class=MsoHeader><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

<div style='mso-element:footer' id=ff1>

<p class=MsoFooter><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

</html>