Re: 2 data recovery questions

From: Jason Giglio (jgiglioat_private)
Date: Tue Nov 12 2002 - 08:03:24 PST

  • Next message: Xiaomin Zhao: "[logs] How to analyse log correlation"

    On Tue, 12 Nov 2002 09:48:12 +0100
    "Bojan Zdrnja" <Bojan.Zdrnjaat_private> wrote:
    
    > So, I'd advise Rod to try to mount that HDD under some Linux computer -
    > he should be able to see normal filesystem if it's on disk. It's also
    > possible that disk was used in RAID on original computer.
    
    Here is more information on doing this, there are a couple major catches
    and potential problems:
    
    ---cut---
    From:
    http://oss.sgi.com/projects/xfs/faq.html
    
    Will I be able to use my old IRIX XFS disks on linux?
    
    Yes. The on-disk format of XFS is the same on IRIX and Linux. Obviously,
    you should back-up your data before trying to move it between systems.
    Filesystems must be "clean" when moved (ie unmounted correctly). If plan
    to use IRIX disks on linux keep the followng things in mind: the kernel
    needs to have SGI partition support enabled (to find in the File systems
    -> Partition Types submenu of a "make menuconfig"), there is no XLV
    support in linux, so you won't be able to read IRIX disks using the XLV
    volume manager, also not all blocksizes available on IRIX are available on
    Linux. (only the blocksize <= pagesize of the architecture: 4k for i386,
    ppc, ... 8k for alpha, sparc, ... is possible for now). Make sure that the
    directory format is version 2 on the Irix disks. Linux can only read v2
    directories on the moment. Using v1 will probably fail in spectacular
    ways. Support for blocksize > pagesize needs to have the linux kernel
    reworked to support this. This might come somewhere in 2.5.x
    
    The only real caveat here is that at the moment XFS on Linux only supports
    filesystems where the disk block size is less than or equal to the page
    size.
    
    ---cut---
    
    - Jason
    
    -----------------------------------------------------------------
    This list is provided by the SecurityFocus ARIS analyzer service.
    For more information on this free incident handling, management 
    and tracking system please see: http://aris.securityfocus.com
    



    This archive was generated by hypermail 2b30 : Tue Nov 12 2002 - 08:09:49 PST