Global Filesystem Limits

From: Markus Miller (mmiller_at_cruzverde.cl)
Date: 12/29/04

  • Next message: Benjamin J. Weiss: "Re: Global Filesystem Limits" 
    Date: Wed, 29 Dec 2004 17:36:05 -0300
To: <redhat-list@redhat.com>

    Hi,

    we are going to buy a new database cluster. The two servers will be connected to a Dell CX700 (EMC Clarion) with about 4 TB of available storage. We want to uses Red Hat Global File System to avoid using RAW device.

    Reviewing the GFS Admin Guide on page 12 it says:
    ---snip---
    2 TB maximum, for total of all storage connected to a GFS cluster. Linux 2.4 kernels do not support devices larger than 2 TB; therefore the total size of storage available to GFS cannot exceed 2 TB.
    ---snip---

    I did some research in Internet and definitely the Kernel 2.4 does not sopport devices larger than 2 TB. This makes me think that each LUN presented to the server must be smaller than 2 TB and I would suppose that I could create various GFS with sizes smaller than 2 TB. Is that correct, or does the capacity of the storage itself has to be smaller than 2 TB to be used by GFS?

    Thanks in advance.
    Regards,
    Markus

    Markus Miller
    Ingeniero de Sistemas, RHCE
    DIFARMA
    Lord Cochrane 326, Santiago, Chile
    Tel. +56 2 6944076
    mmiller@cruzverde.cl 

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  • Next message: Benjamin J. Weiss: "Re: Global Filesystem Limits"

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