From: "Stuart D. Gathman" <stuart@bmsi.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] snapshot pools, lvm roadmap
Date: Sat, 8 Jan 2011 11:17:05 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.64.1101081111220.22994@bmsred.bmsi.com> (raw)
In-Reply-To: <963006.39922.qm@web39303.mail.mud.yahoo.com>
On Fri, 7 Jan 2011, Brian Neu wrote:
> > I'm not sure what "Volume Shadow Copy" actually does, but we use DRBD (Data
> > Replicating Block Device) to remotely mirror block devices - which could be
> > marketed as "Volume Shadow Copy".
>
> MS's VSS is their implementation of snapshots at the fs level. For instance,
> you can set the C drive to back up to a D drive, allocating 80GB for all C
> drive snapshots. Snapshots are removed automatically on a First-In,
> First-Out basis as the storage ceiling is reached. Because the storage is
> shared, they can also be deduplicated for speed and storage efficiency.
Then the open equivalents would be Btrfs and Zumastor on LVM. I think ZFS
does what you want also (and is enterprise ready on Solaris).
--
Stuart D. Gathman <stuart@bmsi.com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
next prev parent reply other threads:[~2011-01-08 16:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-05 7:11 [linux-lvm] snapshot pools, lvm roadmap Brian Neu
2011-01-05 18:34 ` Brian Neu
2011-01-06 11:59 ` Joe Thornber
2011-01-07 19:33 ` Brian Neu
2011-01-07 20:27 ` Phillip Susi
2011-01-07 20:41 ` Alasdair G Kergon
2011-01-10 10:15 ` Joe Thornber
2011-01-10 15:30 ` Phillip Susi
2011-01-05 18:45 ` Stuart D. Gathman
2011-01-05 20:56 ` Brian Neu
2011-01-06 16:15 ` Phillip Susi
2011-01-07 1:09 ` Stuart D. Gathman
2011-01-07 19:01 ` Brian Neu
2011-01-08 16:17 ` Stuart D. Gathman [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-01-18 15:39 Brian Neu
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