Hello What is the difference of "xm save domU" and "xm snapshot-create domU "? (the truth is that I can not locate an some documentation: ( ) It may be that "xm save" or "xm snapshot-create" also perform a disk snapshot? because if I create a file after "xm save" or "xm snapshot-create", I lose to restore the snapshot. From what I understand from the documentation are only "snapshots" of the state of memory and disk. File loss will be due inode cache issues? Thanks for getting here. I''m sure it was way too suffering ... (The day will come that fails to use translate.google)
Casey DeLorme
2012-Oct-16 20:37 UTC
Re: What is the difference of "xm save" and "xm snapshot-create"?
Hi, Not sure what version of Xen you are using, but the xen man pages has a man page for the xm command: http://wiki.xen.org/wiki/Xen_Man_Pages I only found information about the save command in this file: http://xenbits.xen.org/docs/unstable/man/xm.1.html Apparently it''s like a manual hibernate feature, sounds like it places RAM into a file you can reload from later. I saw no mention of the snapshot-create command, but that sounds like it would be relative to the LVM (which also has snapshot commands). On Tue, Oct 16, 2012 at 4:01 PM, Flako <subforos@gmail.com> wrote:> Hello > What is the difference of "xm save domU" and "xm snapshot-create > domU "? (the truth is that I can not locate an some documentation: ( ) > > It may be that "xm save" or "xm snapshot-create" also perform a > disk snapshot? because if I create a file after "xm save" or "xm > snapshot-create", I lose to restore the snapshot. > From what I understand from the documentation are only "snapshots" > of the state of memory and disk. > File loss will be due inode cache issues? > > Thanks for getting here. I''m sure it was way too suffering ... (The > day will come that fails to use translate.google) > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Flako
2012-Oct-16 21:01 UTC
Re: What is the difference of "xm save" and "xm snapshot-create"?
2012/10/16 Casey DeLorme <cdelorme@gmail.com>:> Hi, > > Not sure what version of Xen you are using, but the xen man pages has a man > page for the xm command: > http://wiki.xen.org/wiki/Xen_Man_Pages > > I only found information about the save command in this file: > http://xenbits.xen.org/docs/unstable/man/xm.1.html > > Apparently it''s like a manual hibernate feature, sounds like it places RAM > into a file you can reload from later. > > I saw no mention of the snapshot-create command, but that sounds like it > would be relative to the LVM (which also has snapshot commands). > > On Tue, Oct 16, 2012 at 4:01 PM, Flako <subforos@gmail.com> wrote: >> >> Hello >> What is the difference of "xm save domU" and "xm snapshot-create >> domU "? (the truth is that I can not locate an some documentation: ( ) >> >> It may be that "xm save" or "xm snapshot-create" also perform a >> disk snapshot? because if I create a file after "xm save" or "xm >> snapshot-create", I lose to restore the snapshot. >> From what I understand from the documentation are only "snapshots" >> of the state of memory and disk. >> File loss will be due inode cache issues? >> >> Thanks for getting here. I''m sure it was way too suffering ... (The >> day will come that fails to use translate.google) >>Hi Casey Using Xen on SLES 11SP2 4.1 (kernel 3.0.13-xen-0.27) As you say, "snapshot-create" does not appear in the thirteenth man, but a "# xm - help | grep snap" you can see the valid commands .. I think they are an "alias" to the same functionality "save", but have not found much documentation.