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Cheers, Nishanth 2009/7/24 ESGLinux <esggrupos@xxxxxxxxx> > Well > Finally these are the results of the test: > > time dd if=/home/images/nodo1.img of=/home/images/backup/nodo1backup.img > bs=1M > 10240+1 records in > 10240+1 records out > 10737418242 bytes (11 GB) copied, 255,37 seconds, 42,0 MB/s > > real 4m20.980s > user 0m0.028s > sys 0m19.461s > # ll nodo1.img > -rwxr-xr-x 1 root root 10737418242 jul 24 14:28 nodo1.img > # ll backup/nodo1backup.img > -rw-r--r-- 1 root root 10737418242 jul 24 14:27 backup/nodo1backup.img > > > In 4 minutes I have made a copy of the image and then I used it and it > works > fine. > > The problem I see with this, is the size of the image. When you make a real > snapshot the size is very small, but with this method the size is the same > as the original image. Backing up this file to an external device will take > a long time. > > For me, it´s valid, because I have a small number of images, but for a big > number of images It will be impossible to make this backup. > > Another aproach to this problem? > > ESG > > > 2009/7/24 Geofrey Rainey <Geofrey.Rainey@xxxxxxxxxx> > > > Na you won't break anything apart from maybe increasing the load/ i/o > wait > > On your server..otherwise you'll get a nice backup :) (make sure you've > got > > The exact same space as the partition you're backing up too) > > > > -----Original Message----- > > From: redhat-list-bounces@xxxxxxxxxx [mailto: > > redhat-list-bounces@xxxxxxxxxx] On Behalf Of ESGLinux > > Sent: Friday, 24 July 2009 10:39 p.m. > > To: General Red Hat Linux discussion list > > Subject: Re: backup system for RHEL > > > > Thanks Geogfry, > > I´m going to try it to see what happens, > > > > I expect I´ll dont break nothing ;-) > > > > Greetings, > > > > ESG > > > > > > > > 2009/7/24 Geofrey Rainey <Geofrey.Rainey@xxxxxxxxxx> > > > > > Yes exactly, that's the way. > > > > > > > > > -----Original Message----- > > > From: redhat-list-bounces@xxxxxxxxxx > > > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of ESGLinux > > > Sent: Friday, 24 July 2009 10:33 p.m. > > > To: General Red Hat Linux discussion list > > > Subject: Re: backup system for RHEL > > > > > > 2009/7/24 Geofrey Rainey <Geofrey.Rainey@xxxxxxxxxx> > > > > > > > For the Xen images made of partitions, you'd do: > > > > > > > > # dd if=/dev/sda? of=/backup/xen-backup-image.img bs=1M > > > > > > > > (where /dev/sda? is the partition which your > > > > /etc/xen/<xen-config>:disk='phy:.....' refers to. > > > > > > > > Make sense? > > > > > > > > > > Not really, > > > > > > Because the images are not in a partition, They are files. > > > For example I have this: > > > disk = [ "tap:aio:/home/images/NODE1.img,xvda,w" ] > > > > > > perhaps doing: > > > dd if=/home/images/NODE1.img of=/backup/xen-backup-image.img bs=1M > > > > > > will work? > > > > > > ESG > > > -- > > > redhat-list mailing list > > > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > > > https://www.redhat.com/mailman/listinfo/redhat-list > > > ========================================================== > > > For more information on the Television New Zealand Group, visit us > > > online at tvnz.co.nz > > > ========================================================== > > > CAUTION: This e-mail and any attachment(s) contain information that > > > is intended to be read only by the named recipient(s). This > information > > > is not to be used or stored by any other person and/or organisation. > > > > > > > > > -- > > > redhat-list mailing list > > > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > > > https://www.redhat.com/mailman/listinfo/redhat-list > > > > > -- > > redhat-list mailing list > > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=subscribe > > https://www.redhat.com/mailman/listinfo/redhat-list > > ========================================================== > > For more information on the Television New Zealand Group, visit us > > online at tvnz.co.nz > > ========================================================== > > CAUTION: This e-mail and any attachment(s) contain information that > > is intended to be read only by the named recipient(s). This information > > is not to be used or stored by any other person and/or organisation. > > > > > > -- > > redhat-list mailing list > > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > > https://www.redhat.com/mailman/listinfo/redhat-list > > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjectunsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- This is Unix and Linux country, on a quiet night you can hear Windows Reboot. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjecthttps://www.redhat.com/mailman/listinfo/redhat-list
