[CentOS] Centos 5 on Large Disks.

Tue Oct 23 08:17:40 UTC 2007
James A. Peltier <jpeltier at cs.sfu.ca>

Anup Shukla wrote:
> Hi All,
> 
> Sorry if this has been answered many times.
> But i have been going through a lot of pages (via google search).
> The more i search, the more its confusing me.
> 
> I have a server with 6 (750G each) SATA disks with H/W Raid 5.
> 
> I plan to allocate the space as follows
> 
> swap 8G
> /boot 100M
> / 20G
> -- and remaining space to /data{1,2,3,N} (equal sizes)
> 
> However after the installation and reboot, i got an error about bad 
> partition for /data8
> 
> I had hit the 2T limit.
> 
> Then i found this page at 
> http://www.knowplace.org/pages/howtos/linux_large_filesystems_support.php
> 
> which speaks of using Parted/LVM2 and XFS.
> 
> If i understand this correctly,
> I need to have 1 disk to host the CentOS installation.
> And i can use the other 5 disks in a RAID array
> (label type gpt...)
> 
> Is it not possible to partition and use the existing RAID 5 volume?
> 
> I really am not sure about how to proceed for this big disk problem.
> 
> Any ideas/links will really help.
> 
> Thank you.
> 
> Regards,
> A.S
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My understanding is that grub and lilo are not able to boot off of GPT 
labeled disks currently.  Given the size of currently available disks, 
this will probably change soon, however, for now you need a small 
partition to boot a large disk.

-- 
James A. Peltier
Technical Director, RHCE
SCIRF | GrUVi @ Simon Fraser University - Burnaby Campus
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