carlopmart wrote:
Hi all,
I have setup a rhel5.1 xen server on production environment running 5
windows guests installed over iscsi disks using lvm to store OS windows
and data. But now, which is it the best form for doing hot bakcups of
whole disks and reduce minimal downtime like, for example, vmware esx
does with snaphosts ??
Many thanks.
Before anyone suggests otherwise, and I mention this because I've seen
it suggested wrt network storage devices, no backup system outside the
Linux or Windows system can work. It can't reflect what's in the Linux
or Windows cache waiting to be written, and the only way to get it
written is to shut it down (entirely or very nearly).
It's not a question I've addressed, and when I do, probably closing the
system down while I copy the relevant filesystem(s) will suffice.
And idea I read of and like originated on a real system. Chap configured
RAID including a firewire drive. His backup process was "plug drive in.
Sync. Eject drive."
Sounds good to me, but I would want to verify that it works, and I
suspect that the filesystem would be marked "dirty."
Iain Campbell, "Reliable Linux, assuring high availability," Wiley, 2002
has a chapter in the usual kinds of backup tools, and then goes on to
snapshots using LVM.
Depending on your setup and application requirements, you might be bale
to hot-swap servers. Reliable Linux describes how this might be done.
--
Cheers
John
-- spambait
[EMAIL PROTECTED] [EMAIL PROTECTED]
-- Advice
http://webfoot.com/advice/email.top.php
http://www.catb.org/~esr/faqs/smart-questions.html
http://support.microsoft.com/kb/555375
You cannot reply off-list:-)
_______________________________________________
rhelv5-list mailing list
rhelv5-list@redhat.com
https://www.redhat.com/mailman/listinfo/rhelv5-list
