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Re: [PLUG] CentOS 5 on >2TB disks
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- From: Carl Johnson <cjohnson19791979@gmail.com>
- To: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>, plug@lists.phillylinux.org
- Subject: Re: [PLUG] CentOS 5 on >2TB disks
- Date: Fri, 08 Oct 2010 07:12:57 -0400
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Why not stick /boot on a usb drive? Sounded plausible to me.
"JP Vossen" <jp@jpsdomain.org> wrote:
>I have a case where I need to have LOTS of space in some servers. Right
>now we're using Dell PE R710's with 6x 1TB drives like:
> 1+1 RAID1 mirror = ~1TB
> 4x RAID5 = ~3TB
>
>The 1+1 mirror is a total waste, since all it has is the OS and some
>apps. I'd much rather use all 6 drives in RAID5 for ~5TB.
>
>But if I do that, the boot device is >2TB and so the stock grub1 will
>barf. And grub2 doesn't seem to be in the repos, and it's still a bit
>unclear to me if it can boot >2TB. (I *think* it can, but...) I'm not
>sure I really think grub2 is mature enough for critical production, but
>it it's the only game in town...
>
>I'm also not sure if there are any kernel issues with this. Right now
>I'm using the stock CentOS kernel, but at some point I want to move to a
>custom, monolithic kernel.
>
>Throwing different hardware at the problem is a possibility. The R710's
>are maxed out for drives, and I'm don't think there's a CF-Card or other
>option to stick the OS on so it's less than 2TB. We're looking into
>R510's or something that can have more drives, so we might get smaller
>OS drives internally and leave the externally accessible ones for a big
>RAID. But sooner or later I'm gonna need to deal with this on the R710s
>too.
>
>Is anyone booting Linux (esp. CentOS) on a boot device larger than 2TB?
> Grub2 for CentOS? Clues?
>
>Thanks,
>JP
>----------------------------|:::======|-------------------------------
>JP Vossen, CISSP |:::======| http://bashcookbook.com/
>My Account, My Opinions |=========| http://www.jpsdomain.org/
>----------------------------|=========|-------------------------------
>"Microsoft Tax" = the additional hardware & yearly fees for the add-on
>software required to protect Windows from its own poorly designed and
>implemented self, while the overhead incidentally flattens Moore's Law.
>___________________________________________________________________________
>Philadelphia Linux Users Group -- http://www.phillylinux.org
>Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
>General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
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___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
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