Linux Device Mapper development
 help / color / mirror / Atom feed
From: Luke S Crawford <lsc@prgmr.com>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: LVM Snapshot Feature
Date: 01 Aug 2008 10:15:18 -0400	[thread overview]
Message-ID: <m3sktoddop.fsf@luke.xen.prgmr.com> (raw)
In-Reply-To: <4DE0C34D8B0DA64C9585DC45C36EA03BAB0788@dewdfe1g.wdf.sap.corp>

"Bombardier, Pascal" <pascal.bombardier@sap.com> writes:
> In your opinion, does it make sense to be able to create non-persistent
> snapshots ?
> In the case of a filesystem backup, a non-persistent snapshot would be a
> snapshot that we agree to lose in case of failure or reboot. If anything
> happens, a server administrator would have to recreate a new snapshot
> and then restart the backup.

Considering the current failure mode when a snapshot becomes 'full' (that
is, when I run out of space to remap changed blocks the snapshot becomes
corrupted) this is the only way I currently feel comfortable using LVM 
snapshots at all, so personally, I think snapshots that did not persist
through reboots would be quite useful.

  reply	other threads:[~2008-08-01 14:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-01  7:35 LVM Snapshot Feature Bombardier, Pascal
2008-08-01 14:15 ` Luke S Crawford [this message]
2008-08-01 15:52 ` Adam Hamsik
2008-08-04 13:15   ` Mikulas Patocka
2008-08-06  6:08     ` haad

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=m3sktoddop.fsf@luke.xen.prgmr.com \
    --to=lsc@prgmr.com \
    --cc=dm-devel@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox