-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2014-12-02 14:50, Greg Freemyer wrote:
On December 2, 2014 8:11:54 AM EST, Jan Engelhardt <> wrote:
On Tuesday 2014-12-02 14:03, Carlos E. R. wrote:
I think that xfs implement copy snapshots, to another device or partition.
Source?
He doesn't have one because he's mistaken.
Well, I said "think" because I wasn't sure :-)
Xfs provides xfsfreeze (sp) that flushes all data / metadata to disk, then an underlying layer in the storage stack can instantiate a snapshot by either COW or clone. (LVM snapshots being an example of that.)
After the snapshot is instantiated xfsfreeze -u is called to release the filesystem to do more work.
I wrote the first xfstest implementation for testing xfsfreeze a decade ago so I'm (or was) very familiar with xfsfreeze. (At the time the kernel implementation was buggy and would corrupt open files at times iirc. I was using it and had to write the xfstest to get a reproduced. With that in hand the kernel team fixed it in short order.)
There is also "xfsdump", which can be done "live". In fact, it has to be mounted. It is some kind of snapshot, no? - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlR90vQACgkQtTMYHG2NR9WVagCfRHcIb7OILPHzZW3/TsT73E5j uxMAnRild37MJ4XQProo3NVvzco62JW6 =eenY -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org