Do snapshots solve all consistency problems ?

2005-08-16 Thread scdbackup
Hi, this thread was originally named "mkisofs aborts but exit value is 0" but went into the fundamental question wether a backup will allow a sufficient restore. Sufficient for the needs of the person or organisation which created the backup. So that they can go on with their operations as if ther

Do snapshots solve all consistency problems ?

2005-08-17 Thread scdbackup
Hi, > Joerg Schilling wrote: > I don't know whether and iff, how Linux supports snapshots. > Solaris and FreeBSD do it in a very smilar way since 2002. >From http://www.tldp.org/HOWTO/LVM-HOWTO/snapshots_backup.html : # lvcreate -L592M -s -n dbbackup /dev/ops/databases ... lvcreate -- logi

Do snapshots solve all consistency problems ?

2005-08-17 Thread scdbackup
Hi again, i just understand why i did not notice that reduced optimism in the man page of star > Joerg Schilling wrote: > From the new star man page: > ... may result in inconsistent file states ... It is _new_. Sorry for not reading before writing. I thought remembering "dumpdate=name" would q

Do snapshots solve all consistency problems ?

2005-08-18 Thread scdbackup
Hi, > Joerg Schilling wrote: > I am realisticnot optimistic. Yeah. And sometimes you are quite hard to the users. :)) I think we exchanged our opinions about that topic sufficiently. There are more and other issues to tackle. Btw, star-users@ got a new subscriber and a new user request.

Re: Do snapshots solve all consistency problems ?

2005-08-17 Thread Joerg Schilling
[EMAIL PROTECTED] wrote: > I acknowledge Joerg's effort to make this as safe > as possible by help of his program star. I consider > to learn about LVM in order to get filesystem > snapshots. I don't know whether and iff, how Linux supports snapshots. Solaris and FreeBSD do it in a very smilar w

Re: Do snapshots solve all consistency problems ?

2005-08-18 Thread Joerg Schilling
[EMAIL PROTECTED] wrote: > From http://www.tldp.org/HOWTO/LVM-HOWTO/snapshots_backup.html : > # lvcreate -L592M -s -n dbbackup /dev/ops/databases > ... > lvcreate -- logical volume "/dev/ops/dbbackup" successfully created > > Maybe one should donate them a paragraph about known > pitfalls.