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RE: xfs_growfs doesn't grow on 2TB raid

To: <michael.monnerie@xxxxxxxxxxxxxxxxxxx>
Subject: RE: xfs_growfs doesn't grow on 2TB raid
From: jack the ripper <evil_metalpeet@xxxxxxxxxxx>
Date: Wed, 10 Jun 2009 14:30:19 +0200
Cc: <xfs@xxxxxxxxxxx>
Importance: Normal
In-reply-to: <00ee01c9e9c5$4cf36b20$e6da4160$@monnerie@is.it-management.at>
References: <BAY108-W1262BA63B7F70EB6364C9AF3450@xxxxxxx> <00ee01c9e9c5$4cf36b20$e6da4160$@monnerie@is.it-management.at>
2TB is indeed the limit for MBR partitions but I thought this had nothing to do with a "virtual" software raid? The disks an sich have indeed an MBR partition table, but each disk is only 500GB.

Can you confirm that I need GPT for my software raid?

From: michael.monnerie@xxxxxxxxxxxxxxxxxxx
To: evil_metalpeet@xxxxxxxxxxx
CC: xfs@xxxxxxxxxxx
Subject: RE: xfs_growfs doesn't grow on 2TB raid
Date: Wed, 10 Jun 2009 14:16:35 +0200

Sorry for top-posting, only have Outlook on my notebook.


Isn’t 2TB the normal partition size limit? So if you want >2TB partitions, you must use GPT partitioning, “parted” can create such partitions but not fdisk. AFAIK there is no option to simply change a disk from normal partitions to GPT without backup/repartition/restore.


mfg zmi


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RoSe linux # xfs_growfs /dev/mapper/data1 -d
meta-data=""     isize=256    agcount=9, agsize=61047928 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=488383679, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal               bsize=4096   blocks=32768, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0
data size unchanged, skipping


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