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question: are the metadata crc elements ready for general use?

To: xfs@xxxxxxxxxxx
Subject: question: are the metadata crc elements ready for general use?
From: Joe Landman <joe.landman@xxxxxxxxx>
Date: Tue, 28 Apr 2015 15:30:40 -0400
Delivered-to: xfs@xxxxxxxxxxx
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I ask as I see this in the 3.2.2 mkfs.xfs command. The default is to leave them off from what I can see on an mkfs.xfs.

root@unison:~/xfsprogs# mkfs.xfs /dev/sda
meta-data=/dev/sda isize=256 agcount=55, agsize=268435455 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=0        finobt=0
data     =                       bsize=4096   blocks=14627632640, imaxpct=1
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=0
log      =internal log           bsize=4096   blocks=521728, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

But they are there, and I am curious as to the developers/users thoughts. Will they break things (nfs, CIFS/samba)?

Thanks!

Joe

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