Mailing List Archive

The obvious performance boost would be to back it up using NDMP with
direct attach tape drives. Legato actually has a pretty good NDMP
backup component now, much better than NetBackup. Also, backing up over
NFS loses one of the big benefits of an NDMP backup, snapshots. NFS
backups do not guarantee consistency in the data whereas NDMP backups
will.

~JK

devnull@adc.idt.com wrote:
>
> Dear Toasters,
>
> I was wondering if any of you guys were using Legato for backing up your
> NetApps. I currently have 2 filers that i am backing up to a Legato server
> running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato
> server and then backup those mount points.
>
> I am not sure this is the best thing to do in terms of performance.
>
> Is there an alternate, easier solution.
>
> Thanks,
>
> /dev/null
>
> devnull@adc.idt.com

--
=====================
Jeff Kennedy
Unix Administrator
AMCC
jlkennedy@amcc.com

legato/networker with ndmp works very well indeed. (jukebox connected to filer)

-paul

devnull@adc.idt.com wrote:

> ****************
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> , which will soon be discontinued.
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> ****************
>
> Dear Toasters,
>
> I was wondering if any of you guys were using Legato for backing up your
> NetApps. I currently have 2 filers that i am backing up to a Legato server
> running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato
> server and then backup those mount points.
>
> I am not sure this is the best thing to do in terms of performance.
>
> Is there an alternate, easier solution.
>
> Thanks,
>
> /dev/null
>
> devnull@adc.idt.com

--
"There is magic in the web" - Shakespeare (Othello, Act 3, Scene 4)

For three years I did just that, back up 7 Netapp filers by way of nfs
mounts, using Networker 6.0.1 build 174 on a Solaris 2.8 OS, two E250
Servers. and using two L1000 tape library w/4 DLT7000 drives each. The
Networker servers have a Gigabit connection to the network, (2) 296MHz
CPU's and 768mb memory and I'm backing up 1.5 TB of Netapp data.

We recently went to LTO tapes, one Sun 220R server w/ (1) 450MHz, 1GB
memory, gig card for the Solaris side and a NT box to map mount our CIFS
only server, both connected to a single Dell Powervault 60 slot tape
library.

One of the reasons we went this way was because we were already invested in
Legato Networker software licenses for 60 clients and 2 servers. I do
weekly full backups of the 1.5 TB Netapp data and another half TB of Solaris
and NT clients and daily incrementals.

So my final statement is, performance is not an issue for me.

Regards,
Marilyn Caven
Next Level Communications

-----Original Message-----
From: devnull@adc.idt.com [mailto:devnull@adc.idt.com]
Sent: Thursday, September 19, 2002 6:57 AM
To: Toasters (E-mail)
Subject: Legato Backups.


Dear Toasters,

I was wondering if any of you guys were using Legato for backing up your
NetApps. I currently have 2 filers that i am backing up to a Legato server
running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato
server and then backup those mount points.

I am not sure this is the best thing to do in terms of performance.

Is there an alternate, easier solution.

Thanks,

/dev/null

devnull@adc.idt.com

*** Before acting on this e-mail or opening any attachment you are advised to read the disclaimer at the end of this e-mail ***

Technically speaking (as we found out and are correcting) this is an
unsupported Legato configuration. They'll not help you out if there is an
issue. I consider this to be a marketing ploy as much as anything to sell
NDMP licences.

Legato's position is that they do not support ANY backup of NFS attached
mounts (whether filer or another server).

Practically speaking it works, but sometimes the load on the backup servers
is just too great and a few things "pop loose" for the users.

Peter

-----Original Message-----
From: devnull@adc.idt.com [mailto:devnull@adc.idt.com]
Sent: 19 September 2002 14:57
To: Toasters (E-mail)
Subject: Legato Backups.


Dear Toasters,

I was wondering if any of you guys were using Legato for backing up your
NetApps. I currently have 2 filers that i am backing up to a Legato server
running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato
server and then backup those mount points.

I am not sure this is the best thing to do in terms of performance.

Is there an alternate, easier solution.

Thanks,

/dev/null

devnull@adc.idt.com



******************************* Disclaimer *****************************
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them to anyone; please reply to this e-mail and highlight the error.

Viruses: Although we have taken steps to ensure that this e-mail and
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********************** http://www.burallplastec.com ********************

have you every tried to restore files backed up via nfs mounts?

-paul

Peter Bryant wrote:

> ****************
> The following message was sent to your former e-mail address paul.bell@us.rbcds.com
> , which will soon be discontinued.
>
> A notice was automatically generated and delivered on your behalf to the sender notifying them of the change, but you may also wish to contact the sender to ensure they update their records.
>
> If the incoming message is from a source whose distribution list you no longer wish to be on, please unsubscribe from the list to prevent unnecessary mail traffic.
>
> Thank you for your cooperation.
> RBC Capital Markets Postmaster.
> ****************
>
> *** Before acting on this e-mail or opening any attachment you are advised to read the disclaimer at the end of this e-mail ***
>
> Technically speaking (as we found out and are correcting) this is an
> unsupported Legato configuration. They'll not help you out if there is an
> issue. I consider this to be a marketing ploy as much as anything to sell
> NDMP licences.
>
> Legato's position is that they do not support ANY backup of NFS attached
> mounts (whether filer or another server).
>
> Practically speaking it works, but sometimes the load on the backup servers
> is just too great and a few things "pop loose" for the users.
>
> Peter
>
> -----Original Message-----
> From: devnull@adc.idt.com [mailto:devnull@adc.idt.com]
> Sent: 19 September 2002 14:57
> To: Toasters (E-mail)
> Subject: Legato Backups.
>
> Dear Toasters,
>
> I was wondering if any of you guys were using Legato for backing up your
> NetApps. I currently have 2 filers that i am backing up to a Legato server
> running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato
> server and then backup those mount points.
>
> I am not sure this is the best thing to do in terms of performance.
>
> Is there an alternate, easier solution.
>
> Thanks,
>
> /dev/null
>
> devnull@adc.idt.com
>
> ******************************* Disclaimer *****************************
> Confidentiality: This e-mail and any attachments are intended for the
> addressee(s) only and may be confidential. If they have come to you in
> error you must take no action based on them, nor must you copy or show
> them to anyone; please reply to this e-mail and highlight the error.
>
> Viruses: Although we have taken steps to ensure that this e-mail and
> attachments are free from any virus, we advise that in keeping with good
> practice the recipient should ensure they are actually virus free.
> ********************** http://www.burallplastec.com ********************

--
"There is magic in the web" - Shakespeare (Othello, Act 3, Scene 4)

We've been backing up 3 of our filers over NFS for 4-5 years now with no
significant problems. We've done lots of restores as well. The only real
caveat would be that NT ACL's are not preserved, but since all our qtrees
are UNIX, that's not a problem for us.

We tried a demo of the NDMP Legato solution shortly after it was made
available, but we found it flaky and unreliable, so we went back to NFS.
I'd imagine it's much improved now over what it was then.

--
Mike Sphar - Sr Systems Administrator - Remedy Corporation

-----Original Message-----
From: Peter Bryant [mailto:PBryant@burallplastec.com]
Sent: Friday, September 20, 2002 9:47 AM
To: 'Paul J. Bell'
Cc: 'Netapp Toasters Mailing List'
Subject: RE: Legato Backups.

*** Before acting on this e-mail or opening any attachment you are advised
to read the disclaimer at the end of this e-mail ***

Erm... Well sort of, and it works. As far as I remember that's how some
data was moved about shortly after the install (of the Filer) early this
year. But we've been discussing <bg> the supported framework ever since and
that is why we are moving over to NDMP very soon now.

But I cannot claim any great competency in doing it. If we have that kind
of need (for now) we involve our support partner.

However I did speak to a techie deep within the bowels of Legato, and it's
essentially "of course it all works - why shouldn't it? but of course that's
not our position".

Peter

-----Original Message-----
From: Paul J. Bell [mailto:paul.bell@rbccm.com]
Sent: 20 September 2002 12:41
To: Peter Bryant
Cc: 'Netapp Toasters Mailing List'
Subject: Re: Legato Backups.


have you every tried to restore files backed up via nfs mounts?

-paul

Peter Bryant wrote:

>
> Technically speaking (as we found out and are correcting) this is an
> unsupported Legato configuration. They'll not help you out if there
> is an issue. I consider this to be a marketing ploy as much as
> anything to sell NDMP licences.
>
> Legato's position is that they do not support ANY backup of NFS
> attached mounts (whether filer or another server).
>
> Practically speaking it works, but sometimes the load on the backup
> servers is just too great and a few things "pop loose" for the users.
>
> Peter
>
> -----Original Message-----
> From: devnull@adc.idt.com [mailto:devnull@adc.idt.com]
> Sent: 19 September 2002 14:57
> To: Toasters (E-mail)
> Subject: Legato Backups.
>
> Dear Toasters,
>
> I was wondering if any of you guys were using Legato for backing up
> your NetApps. I currently have 2 filers that i am backing up to a
> Legato server running Solaris 2.8 over NFS. I mount the NetApp volumes
> onto the legato server and then backup those mount points.
>
> I am not sure this is the best thing to do in terms of performance.
>
> Is there an alternate, easier solution.
>
> Thanks,


******************************* Disclaimer *****************************
Confidentiality: This e-mail and any attachments are intended for the
addressee(s) only and may be confidential. If they have come to you in
error you must take no action based on them, nor must you copy or show
them to anyone; please reply to this e-mail and highlight the error.

Viruses: Although we have taken steps to ensure that this e-mail and
attachments are free from any virus, we advise that in keeping with good
practice the recipient should ensure they are actually virus free.
********************** http://www.burallplastec.com ********************

On Friday, September 20, 2002 07:41:18 AM -0400 "Paul J. Bell"
<paul.bell@rbccm.com> wrote:
+------
| have you every tried to restore files backed up via nfs mounts?
[...]
| > Technically speaking (as we found out and are correcting) this is an
| > unsupported Legato configuration. They'll not help you out if there is
| > an issue. I consider this to be a marketing ploy as much as anything
| > to sell NDMP licences.
| >
| > Legato's position is that they do not support ANY backup of NFS attached
| > mounts (whether filer or another server).
| >
| > Practically speaking it works, but sometimes the load on the backup
| > servers is just too great and a few things "pop loose" for the users.
| >
| > Peter
| >
| > -----Original Message-----
| > From: devnull@adc.idt.com [mailto:devnull@adc.idt.com]
| > Sent: 19 September 2002 14:57
| > To: Toasters (E-mail)
| > Subject: Legato Backups.
| >
| > Dear Toasters,
| >
| > I was wondering if any of you guys were using Legato for backing up your
| > NetApps. I currently have 2 filers that i am backing up to a Legato
| > server running Solaris 2.8 over NFS. I mount the NetApp volumes onto
| > the legato server and then backup those mount points.
| >
| > I am not sure this is the best thing to do in terms of performance.
| >
| > Is there an alternate, easier solution.
+-----X8

NFS restores work quite well, the major problem that you are likely to
encounter is that if recover detects that you are restoring to an nfs
server then it believes that the nfs server is the client, it isn't that
hard to work around but it is necessary.

Before changing to ndmp remember that ndmp backups cannot be cloned and
that ndmp backups are not incremental. There are also some catches with
restores though they are minor.

/Michael
--
This space intentionally left non-blank.

Go with NDMP on Legato. As others stated, NDMP and Legato work very well. I
have setup a few environments with Legato Networker and NDMP via Netapp. The
nice thing about NDMP is you directly dump off the Netapp to tape which is
very quick. It will push LTO and SDLT tape drives to the full performance
capabilities. In addition, the CPU overhead required to do a NDMP backup vs
over NFS is much lower on the Netapp. Keep in mind though that the tape
drives dedicated to the Netapp for NDMP can not be shared by other non
Netapp Legato clients/storage nodes/servers (can be shared by other Netapps
though).
Mike


-----Original Message-----
From: devnull@adc.idt.com [mailto:devnull@adc.idt.com]
Sent: Thursday, September 19, 2002 9:57 AM
To: Toasters (E-mail)
Subject: Legato Backups.


Dear Toasters,

I was wondering if any of you guys were using Legato for backing up your
NetApps. I currently have 2 filers that i am backing up to a Legato server
running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato
server and then backup those mount points.

I am not sure this is the best thing to do in terms of performance.

Is there an alternate, easier solution.

Thanks,

/dev/null

devnull@adc.idt.com