<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:bookman old style,new york,times,serif;font-size:10pt"><div>how do i remove from your emails!<br>i subscribed ti an email forums without knowing that.<br>i am sick of zillion emails here about crap!<br></div><div style="font-family: bookman old style,new york,times,serif; font-size: 10pt;"><br><div style="font-family: garamond,new york,times,serif; font-size: 10pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> JohnS <jses27@gmail.com><br><b><span style="font-weight: bold;">To:</span></b> Mail list for wiki articles <centos-docs@centos.org><br><b><span style="font-weight: bold;">Sent:</span></b> Monday, April 27, 2009 2:54:44 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [CentOS-docs] New page on installing to software RAID<br></font><br>
<br>On Mon, 2009-04-27 at 21:48 +0200, Marcus Moeller wrote:<br>> Dear Phil,<br>> <br><span>> > <a target="_blank" href="http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5">http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5</a></span><br>> ><br>> > Comments and corrections please.<br>> <br>> Sorry Phil. I personally cannot accept this HowTo at current state.<br>> There is also some cute documentation available in the Deployment<br>> Guide.<br>> <br>> You wrote:<br>> 'Some controllers claim to be RAID but require Windows drivers to<br>> function, similar to winmodems.'<br>> <br>> This is not true. Some controllers make use of OS functionality. This<br>> is not dependent to Windows.<br>> <br>> You wrote:<br>> 'Booting will only work from non-RAID or RAID1 partitions. RAID0 or<br>> RAID5 will not work.'<br>> <br>> This is only true if you wish to have the boot partition
(/boot/)<br>> reside on a RAID parition. In this case it must be on a RAID1<br>> partition.<br>> Also, in your scenario it does not make much sense to split /boot and<br>> may cause confusion, as it's not necessary on a RAID1.<br>> <br>> You wrote:<br>> 'Disable any hardware-based RAID in the motherboard or RAID controller BIOS '<br>> <br>> Why that? I have some systems where I combine hardware- and softraids.<br>> This may be the case on fakeraid controllers.<br>> <br>> ...skipping...someone else could take care...<br>> <br>> You wrote:<br>> After installing a new kernel, repeat Section Three. It should be<br>> possible to apply a similar approach to a /boot on RAID1, or to a / on<br>> RAID1 without a /boot.<br>> <br>> Why should someone want to use dd to mirror a / partition on an active RAID1 ?<br><br>You should not use dd on any active disk raid or not. You might not the<br>first time end up
with errors but you will eventually. One option is to<br>rsync it then fsck it on a live disk if your brave. The best option is<br>to mark the disk inactive load the hot spare then let it rebuild. Or<br>shut down the machine then use a live cd then dd /.<br><br>JohnStanley <br><br>_______________________________________________<br>CentOS-docs mailing list<br><a ymailto="mailto:CentOS-docs@centos.org" href="mailto:CentOS-docs@centos.org">CentOS-docs@centos.org</a><br><span><a target="_blank" href="http://lists.centos.org/mailman/listinfo/centos-docs">http://lists.centos.org/mailman/listinfo/centos-docs</a></span><br></div></div></div><br>
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