Re: [zfs-discuss] Snapshots and Data Loss

2010-04-23 Thread Ross Walker
On Apr 22, 2010, at 11:03 AM, Geoff Nordli geo...@grokworx.com wrote: From: Ross Walker [mailto:rswwal...@gmail.com] Sent: Thursday, April 22, 2010 6:34 AM On Apr 20, 2010, at 4:44 PM, Geoff Nordli geo...@grokworx.com wrote: If you combine the hypervisor and storage server and have

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-23 Thread Geoff Nordli
-Original Message- From: Ross Walker [mailto:rswwal...@gmail.com] Sent: Friday, April 23, 2010 7:08 AM We are currently porting over our existing Learning Lab Infrastructure platform from MS Virtual Server to VBox + ZFS. When students connect into their lab environment it dynamically

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-22 Thread Ross Walker
On Apr 20, 2010, at 4:44 PM, Geoff Nordli geo...@grokworx.com wrote: From: matthew patton [mailto:patto...@yahoo.com] Sent: Tuesday, April 20, 2010 12:54 PM Geoff Nordli geo...@grokworx.com wrote: With our particular use case we are going to do a save state on their virtual machines, which

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-22 Thread Geoff Nordli
From: Ross Walker [mailto:rswwal...@gmail.com] Sent: Thursday, April 22, 2010 6:34 AM On Apr 20, 2010, at 4:44 PM, Geoff Nordli geo...@grokworx.com wrote: If you combine the hypervisor and storage server and have students connect to the VMs via RDP or VNC or XDM then you will have the

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-21 Thread Geoff Nordli
From: matthew patton [mailto:patto...@yahoo.com] Sent: Tuesday, April 20, 2010 12:54 PM Geoff Nordli geo...@grokworx.com wrote: With our particular use case we are going to do a save state on their virtual machines, which is going to write  100-400 MB per VM via CIFS or NFS, then we take a

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-20 Thread Geoff Nordli
From: Richard Elling [mailto:richard.ell...@gmail.com] Sent: Monday, April 19, 2010 10:17 PM Hi Geoff, The Canucks have already won their last game of the season :-) more below... Hi Richard, I didn't watch the game last night, but obviously Vancouver better pick up their socks or they will be

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-20 Thread matthew patton
Geoff Nordli geo...@grokworx.com wrote: With our particular use case we are going to do a save state on their virtual machines, which is going to write  100-400 MB per VM via CIFS or NFS, then we take a snapshot of the volume, which guarantees we get a consistent copy of their VM. maybe

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-19 Thread Geoff Nordli
On Apr 13, 2010, at 5:22 AM, Tony MacDoodle wrote: I was wondering if any data was lost while doing a snapshot on a running system? ZFS will not lose data during a snapshot. Does it flush everything to disk or would some stuff be lost? Yes, all ZFS data will be committed to disk and then the

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-19 Thread Richard Elling
Hi Geoff, The Canucks have already won their last game of the season :-) more below... On Apr 18, 2010, at 11:21 PM, Geoff Nordli wrote: On Apr 13, 2010, at 5:22 AM, Tony MacDoodle wrote: I was wondering if any data was lost while doing a snapshot on a running system? ZFS will not lose

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-16 Thread Maurilio Longo
Richard, Applications can take advantage of this and there are services available to integrate ZFS snapshots with Oracle databases, Windows clients, etc. which services are you referring to? best regards. Maurilio. -- This message posted from opensolaris.org

[zfs-discuss] Snapshots and Data Loss

2010-04-13 Thread Tony MacDoodle
I was wondering if any data was lost while doing a snapshot on a running system? Does it flush everything to disk or would some stuff be lost? Thanks ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-13 Thread Erik Ableson
A snapshot is a picture of the storage at a point in time so everything depends on the applications using the storage. If you're running a db with lots of cache it's probably a good idea to stop the service or force a flush to disk before taking the snapshot to ensure the integrity of the

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-13 Thread Richard Elling
On Apr 13, 2010, at 5:22 AM, Tony MacDoodle wrote: I was wondering if any data was lost while doing a snapshot on a running system? ZFS will not lose data during a snapshot. Does it flush everything to disk or would some stuff be lost? Yes, all ZFS data will be committed to disk and then