[TriLUG] huge filesystems

[Chris Bullock]

I know from experience, that RHEL will support 2TB of ext3 with no
problem, however you must partition with fdisk since RHEL will not do
files systems that size on install.
--- paul <ppeeler at gmail.com> wrote:
> Does anyone have experience setting up huge filesystems in Linux? It
> is of course debatable whether or not having a 5tb+ filesystem is a
> good idea, however I am tasked with finding the method to make it
> work.
> 
> Details. Server runs RHEL4 and the option of RHEL4 x86_64. The
> filesystems would be created on externally attached arrays via scsi
> ultra 320 LSI cards. The card according to LSI will support whatever
> the array can throw at it, and of course the array itself supports
> making such a filesystem (in this case 5.3tb). When the array is
> attached the  server, you can fdisk the device and see that the space
> is available.
> 
> ##################################
> 
> Command (m for help): p
> 
> Disk /dev/sdb: 5594.5 GB, 5594564001792 bytes
> 255 heads, 63 sectors/track, 170041 cylinders
> Units = cylinders of 16065 * 2048 = 32901120 bytes
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdb1               1      182187  1558700888   83  Linux
> 
> ##################################
> 
> I am not experience in setting block sizes and what not, so that is my
> current path. In other words, reasearching that piece of the puzzle.
> 
> I realize according to some googling that ext3 will not support this
> size of a filesystem, however RHEL4 doesn't support XFS or JFS from
> what I can find. I turned to my personal fav Debian to see if I could
> work with the filesystem since I would have xfs available to me, but
> fdisk had issues with sectors, and my employer wants to change distros
> as a last resort.
> 
> I would be happy to pursue this on my own if I could get a little
> advice as to what to look for. Googling "huge filesystem lnux" isn't
> really getting me what I need thus far, so any "more relevant" search
> terms or info from disk gurus would be appreciated.
> 
> Thanks,
> 
> Paul
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