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

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-23 Thread Ross Walker
On Apr 22, 2010, at 11:03 AM, Geoff Nordli 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 wrote: If you combine the hypervisor and storage server and have students connect to the VMs via RDP or VNC or

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 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 >performance of local

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-22 Thread Ross Walker
On Apr 20, 2010, at 4:44 PM, Geoff Nordli wrote: From: matthew patton [mailto:patto...@yahoo.com] Sent: Tuesday, April 20, 2010 12:54 PM Geoff Nordli 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 v

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 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 sna

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-20 Thread matthew patton
Geoff Nordli 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 you left out

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 wi

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 wil

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-18 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 a

Re: [zfs-discuss] Snapshots and Data Loss

2010-04-16 Thread Richard Elling
On Apr 16, 2010, at 3:27 AM, Maurilio Longo wrote: > 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? Nexenta offers plugins to integrate Ora

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 ___

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

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 d

[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 http://mail.opensolaris.org/mailman/listinfo/zf