Veritas-bu

Re: [Veritas-bu] Multiplexing on VTLs

2008-04-30 19:12:27
Subject: Re: [Veritas-bu] Multiplexing on VTLs
From: "Mike Sparkes" <Mike.Sparkes AT Quantum DOT com>
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Wed, 30 Apr 2008 15:58:46 -0700
Your logic is correct. If your licensing allows many Virtual Tape Drives
then create them and run many parallel backup jobs. Even in a virtual
environment this will make your restores quicker. Also, if you ever move
to de-duplication, the act of multiplexing your backups ruins the
ability to detect duplicate blocks. Your de-dupe ratio will be terrible.

Mike Sparkes


-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
veritas-bu-request AT mailman.eng.auburn DOT edu
Sent: Wednesday, April 30, 2008 2:45 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Veritas-bu Digest, Vol 24, Issue 70

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Today's Topics:

   1. Re: NDMP Question (Mike Heck)
   2. Re: Anyone have any tweaks for LTO-4 and emulex cards under
      RHEL5? (Justin Piszcz)
   3. Re: Anyone have any tweaks for LTO-4 and emulex cards under
      RHEL5? (Justin Piszcz)
   4. Multiplexing on VTL's (Travis Kelley)
   5. Best setup for NetBackup in 2 sites across the WAN link
      (Aleksandr Nepomnyashchiy)
   6. Re: VMotion - Supported for NBU 6.5 VCB Backups? (Boris Kraizman)
   7. Re: Best setup for NetBackup in 2 sites across the WAN    link
      (Norman_Ellis AT discovery DOT com)
   8. Netbackup Enterprise Edition 6.5 compatibility (Leidy, Jason D)
   9. Re: Best setup for NetBackup in 2 sites across the WAN link
      (Justin Piszcz)
  10. Re: Netbackup Enterprise Edition 6.5 compatibility (Len Boyle)
  11. Re: Netbackup Enterprise Edition 6.5 compatibility
      (Haskins, Steve)
  12. Re: Anyone have any tweaks for LTO-4 and emulex cards under
      RHEL5? (Justin Piszcz)
  13. Re: Anyone have any tweaks for LTO-4 and emulex cards under
      RHEL5? (Justin Piszcz)
  14. Re: Best setup for NetBackup in 2 sites across the WAN    link
      (Norman_Ellis AT discovery DOT com)


----------------------------------------------------------------------

Message: 1
Date: Wed, 30 Apr 2008 10:30:27 -0700
From: "Mike Heck" <mike_heck AT symantec DOT com>
Subject: Re: [Veritas-bu] NDMP Question
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Message-ID:
        
<C6E6C7473242F040AA74160795C98EEF04537258 AT TUS1XCHCLUPIN01.enterprise DOT ver
itas.com>
        
Content-Type: text/plain;       charset="US-ASCII"

Christopher,

No NDMP backups cannot be multiplexed no matter where the tape side of
the backup exists. This is a limitation of NDMP.

Multi-streaming is possible with NDMP backups just not Multiplexing. 

Thanks 
Mike Heck


Date: Tue, 29 Apr 2008 13:18:45 -0700
From: "Costa, Christopher" <Christopher.Costa AT netapp DOT com>
Subject: Re: [Veritas-bu] NDMP Question
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Message-ID:
        
<81FBD71B9C043E42894EFCF640D3C53304253B1C AT SACEXMV03.hq.netapp DOT com>
Content-Type: text/plain; charset="us-ascii"

Question,

 

Normally when you dedicate a drive(s) to a NDMP host that host can only
use one tape drive per host and cannot multiplex data streams. If you
chose not to dedicate any tape drives to the NDMP host and chose to use
the remote NDMP backup method, can a single host use multiple tape
drives and multiplex data streams?

 

How is the performance of the remote NDMP backup?

 

Thanks

 

 

 

Christopher C. Costa

 

 

 

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------------------------------

Message: 2
Date: Wed, 30 Apr 2008 14:05:59 -0400 (EDT)
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Subject: Re: [Veritas-bu] Anyone have any tweaks for LTO-4 and emulex
        cards under RHEL5?
To: Jason Slagle <raistlin AT tacorp DOT net>
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID: <alpine.DEB.1.10.0804301405330.6854 AT p34.internal DOT lan>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

Yeah yeah that was it I figured it after I sent the e-mail I was in a
rush 
to get these new serves up and forgot about the SIZE_* vars, getting 
100MiB/s per tape drive now no problems.

On Wed, 30 Apr 2008, Jason Slagle wrote:

>
> Having just gone through that (Albiet with Qlogic) this is what I did:
>
> Make sure the st driver is set to a reasonable buffer size (I did this
in 
> /etc/modprobe.conf):
> options st buffer_kbs=1024
>
> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS
> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS_DISK
> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS
> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS_DISK
>
> echo "kernel.shmmax = 268435456" >>/etc/sysctl.conf
>
> echo "65536" >/usr/openv/netbackup/NET_BUFFER_SZ
>
> Doing this, I am able to hit 70-80MB/s to the tape from my DSSU, and I
think 
> I COULD actually go faster, but my DSSU is limiting it.
>
> Someone else amy have better values for these to improve it more - I
would 
> love to hear them also.
>
> Jason
>
> -- 
> Jason Slagle
> /"\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
> \ /   ASCII Ribbon Campaign  .
> X  - NO HTML/RTF in e-mail  .
> / \ - NO Word docs in e-mail .
>
>
> On Wed, 30 Apr 2008, Justin Piszcz wrote:
>
>> I am only seeing 8-10MiB/s directly from RAM (/dev/shm) where if I
write
>> the same data to an LTO-3, I see regular speeds, 60-90MiB/s no
problems?
>> _______________________________________________
>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>> 
>


------------------------------

Message: 3
Date: Wed, 30 Apr 2008 14:06:06 -0400 (EDT)
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Subject: Re: [Veritas-bu] Anyone have any tweaks for LTO-4 and emulex
        cards under RHEL5?
To: Jason Slagle <raistlin AT tacorp DOT net>
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID: <alpine.DEB.1.10.0804301406040.6854 AT p34.internal DOT lan>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

Thanks btw ;)

On Wed, 30 Apr 2008, Justin Piszcz wrote:

> Yeah yeah that was it I figured it after I sent the e-mail I was in a
rush to 
> get these new serves up and forgot about the SIZE_* vars, getting
100MiB/s 
> per tape drive now no problems.
>
> On Wed, 30 Apr 2008, Jason Slagle wrote:
>
>> 
>> Having just gone through that (Albiet with Qlogic) this is what I
did:
>> 
>> Make sure the st driver is set to a reasonable buffer size (I did
this in 
>> /etc/modprobe.conf):
>> options st buffer_kbs=1024
>> 
>> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS
>> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS_DISK
>> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS
>> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS_DISK
>> 
>> echo "kernel.shmmax = 268435456" >>/etc/sysctl.conf
>> 
>> echo "65536" >/usr/openv/netbackup/NET_BUFFER_SZ
>> 
>> Doing this, I am able to hit 70-80MB/s to the tape from my DSSU, and
I 
>> think I COULD actually go faster, but my DSSU is limiting it.
>> 
>> Someone else amy have better values for these to improve it more - I
would 
>> love to hear them also.
>> 
>> Jason
>> 
>> -- 
>> Jason Slagle
>> /"\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
>> \ /   ASCII Ribbon Campaign  .
>> X  - NO HTML/RTF in e-mail  .
>> / \ - NO Word docs in e-mail .
>> 
>> 
>> On Wed, 30 Apr 2008, Justin Piszcz wrote:
>> 
>>> I am only seeing 8-10MiB/s directly from RAM (/dev/shm) where if I
write
>>> the same data to an LTO-3, I see regular speeds, 60-90MiB/s no
problems?
>>> _______________________________________________
>>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
>>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>>> 
>> 
>


------------------------------

Message: 4
Date: Wed, 30 Apr 2008 14:40:35 -0400
From: "Travis Kelley" <rhatguy AT gmail DOT com>
Subject: [Veritas-bu] Multiplexing on VTL's
To: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID:
        <87c0fb330804301140y6e35ebccrbd45c9f1d2441b1f AT mail.gmail DOT com>
Content-Type: text/plain; charset=ISO-8859-1

We recently purchased a VTL to backup some short retention backups to.
 The backups will expire on the VTL and will not be duplicated to tape
or anywhere else for that matter.  We also have capacity licensing so
we can create as many virtual tape drives as necessary.  I don't
believe multiplexing is necessary in a situation like this and that we
would be better off configuring enough tape drives to handle the
number of streams we need and turn multiplexing off.  Does anyone know
of any reason this logic would be flawed...and if not is there any
documentation out there to support that multiplexing is not a good
idea when using VTL's?


------------------------------

Message: 5
Date: Wed, 30 Apr 2008 15:05:56 -0400
From: "Aleksandr Nepomnyashchiy" <anepomn AT gmail DOT com>
Subject: [Veritas-bu] Best setup for NetBackup in 2 sites across the
        WAN link
To: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID:
        <26924da90804301205g19f07250lb1f5523fdab450c5 AT mail.gmail DOT com>
Content-Type: text/plain; charset=ISO-8859-1

Dear Gurus,
What is the best setup for NetBackup in 2 sites across the WAN link?

I will have a tape library on each site.


- Should I purchase 2 NetBackup servers and manage them separately?
- Is it better (or cheaper) to purchase NetBackup server for a primary
site and media manager for the remote site?


Thank you,
Aleksandr


------------------------------

Message: 6
Date: Wed, 30 Apr 2008 16:18:43 -0400
From: "Boris Kraizman" <sysadminzone AT gmail DOT com>
Subject: Re: [Veritas-bu] VMotion - Supported for NBU 6.5 VCB Backups?
To: "David Attreed" <backuplover AT gmail DOT com>
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID:
        <7454e3bf0804301318h6e1b493dtab6405b015e0d4fe AT mail.gmail DOT com>
Content-Type: text/plain; charset="iso-8859-1"

Did you try to use the Virtual Center instead ESX hosts?

On Tue, Apr 15, 2008 at 1:16 PM, David Attreed <backuplover AT gmail DOT com>
wrote:

> First post so be gentle. Am testing out VCB backups with NBU 6.5 which
> work absolutely fine. However, when we VMotion the host to a different
ESX,
> NetBackup does not keep track of that action and promptly fails the
next
> backup with a 156. Only fix I have found so far is to edit the backup
> policy, delete the host from the clients list, refresh the ESX list
and then
> add the host back in from its new location.
>
> The only mention anywhere in Symantec-land of VMotion is this small
> snippet from the VMware Best Practices Guide - "The configuration is
> Distributed Resource Scheduling (DRS) and VMotion aware."
>
> Am I missing something?
>
> TIA,
> BackupLover
>
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>
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Message: 7
Date: Wed, 30 Apr 2008 16:54:46 -0400
From: Norman_Ellis AT discovery DOT com
Subject: Re: [Veritas-bu] Best setup for NetBackup in 2 sites across
        the WAN link
To: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID:
        
<OFEC8EC183.13B3436A-ON8525743B.007210B0-8525743B.0072DE9B AT us DOT dci.discov
ery.com>
        
Content-Type: text/plain; charset="us-ascii"

Based on what you describe, it seems you only want to backup servers in
a 
remote site but are not looking for a "DR" solution. It would be far 
cheaper to have a single master server and a media server in the remote 
site. This obviously keeps the license costs down and centralizes the 
management.





"Aleksandr Nepomnyashchiy" <anepomn AT gmail DOT com> 
Sent by: veritas-bu-bounces AT mailman.eng.auburn DOT edu
04/30/2008 03:05 PM

To
veritas-bu AT mailman.eng.auburn DOT edu
cc

Subject
[Veritas-bu] Best setup for NetBackup in 2 sites across the WAN link






Dear Gurus,
What is the best setup for NetBackup in 2 sites across the WAN link?

I will have a tape library on each site.


- Should I purchase 2 NetBackup servers and manage them separately?
- Is it better (or cheaper) to purchase NetBackup server for a primary
site and media manager for the remote site?


Thank you,
Aleksandr
_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu



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Message: 8
Date: Wed, 30 Apr 2008 14:05:23 -0700
From: "Leidy, Jason D" <Leidy.Jason AT con-way DOT com>
Subject: [Veritas-bu] Netbackup Enterprise Edition 6.5 compatibility
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Message-ID:
        <653C42F4FD63004B85290DD3D422E8A609C0C256 AT ri-cnfqe173.cnf DOT com>
Content-Type: text/plain; charset="us-ascii"

Will a Netbackup 6.5 Master\Media server backup Windows NT clients?

 

Jason Leidy

Con-way Enterprise Services

Windows Server Group

503-450-3958

 

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Message: 9
Date: Wed, 30 Apr 2008 17:12:22 -0400 (EDT)
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Subject: Re: [Veritas-bu] Best setup for NetBackup in 2 sites across
        the WAN link
To: Aleksandr Nepomnyashchiy <anepomn AT gmail DOT com>
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID: <alpine.DEB.1.10.0804301712090.7843 AT p34.internal DOT lan>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed



On Wed, 30 Apr 2008, Aleksandr Nepomnyashchiy wrote:

> Dear Gurus,
> What is the best setup for NetBackup in 2 sites across the WAN link?
>
> I will have a tape library on each site.
>
>
> - Should I purchase 2 NetBackup servers and manage them separately?
> - Is it better (or cheaper) to purchase NetBackup server for a primary
> site and media manager for the remote site?
>
>
> Thank you,
> Aleksandr
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>

2 masters and manage separately so if one environment goes down, the
other 
will continue to run



------------------------------

Message: 10
Date: Wed, 30 Apr 2008 17:22:38 -0400
From: Len Boyle <Len.Boyle AT sas DOT com>
Subject: Re: [Veritas-bu] Netbackup Enterprise Edition 6.5
        compatibility
To: "Leidy, Jason D" <Leidy.Jason AT con-way DOT com>,
        "veritas-bu AT mailman.eng.auburn DOT edu"
        <veritas-bu AT mailman.eng.auburn DOT edu>
Message-ID:
        
<F17752FC8F21B8428FF70A2DA2B2E246053F4A0598 AT MERCMBX11.na.sas DOT com>
Content-Type: text/plain; charset="us-ascii"

yes what levels of windows are you looking at

You can go to support.veritas.com and check for levels supported.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Leidy,
Jason D
Sent: Wednesday, April 30, 2008 5:05 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Netbackup Enterprise Edition 6.5 compatibility

Will a Netbackup 6.5 Master\Media server backup Windows NT clients?

Jason Leidy
Con-way Enterprise Services
Windows Server Group
503-450-3958

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Message: 11
Date: Wed, 30 Apr 2008 14:31:34 -0700
From: "Haskins, Steve" <Steve.Haskins AT bannerhealth DOT com>
Subject: Re: [Veritas-bu] Netbackup Enterprise Edition 6.5
        compatibility
To: "Leidy, Jason D" <Leidy.Jason AT con-way DOT com>,
        <veritas-bu AT mailman.eng.auburn DOT edu>
Message-ID:
        
<5A5A59FDAFF12744A1DF88A54D26868802020DDE AT PHX01106.bhs.bannerhealth DOT com>
        
Content-Type: text/plain; charset="us-ascii"

Jason, 

 

  I understood that with version 6.# Windows NT 4.0 would not be
supported and migrated the few we have remaining to another backup
product before migrating to 6.5. I wasn't brave enough to test them with
6.5.

 

Regards.

 

________________________________

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Leidy,
Jason D
Sent: Wednesday, April 30, 2008 2:05 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Netbackup Enterprise Edition 6.5 compatibility

 

Will a Netbackup 6.5 Master\Media server backup Windows NT clients?

 

Jason Leidy

Con-way Enterprise Services

Windows Server Group

503-450-3958

 

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Message: 12
Date: Wed, 30 Apr 2008 17:37:48 -0400 (EDT)
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Subject: Re: [Veritas-bu] Anyone have any tweaks for LTO-4 and emulex
        cards under RHEL5?
To: Jason Slagle <raistlin AT tacorp DOT net>
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID: <alpine.DEB.1.10.0804301737140.7843 AT p34.internal DOT lan>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

Btw there was a good HP doc, 32 for the NUMBER_DATA_BUFFERS and 256k for

the SIZE_DATA_BUFFERS is the best.

> 32 (48) was not any better, but 32 > 16 was a definite gain in 
performance.


Justin.

On Wed, 30 Apr 2008, Jason Slagle wrote:

>
> Having just gone through that (Albiet with Qlogic) this is what I did:
>
> Make sure the st driver is set to a reasonable buffer size (I did this
in 
> /etc/modprobe.conf):
> options st buffer_kbs=1024
>
> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS
> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS_DISK
> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS
> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS_DISK
>
> echo "kernel.shmmax = 268435456" >>/etc/sysctl.conf
>
> echo "65536" >/usr/openv/netbackup/NET_BUFFER_SZ
>
> Doing this, I am able to hit 70-80MB/s to the tape from my DSSU, and I
think 
> I COULD actually go faster, but my DSSU is limiting it.
>
> Someone else amy have better values for these to improve it more - I
would 
> love to hear them also.
>
> Jason
>
> -- 
> Jason Slagle
> /"\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
> \ /   ASCII Ribbon Campaign  .
> X  - NO HTML/RTF in e-mail  .
> / \ - NO Word docs in e-mail .
>
>
> On Wed, 30 Apr 2008, Justin Piszcz wrote:
>
>> I am only seeing 8-10MiB/s directly from RAM (/dev/shm) where if I
write
>> the same data to an LTO-3, I see regular speeds, 60-90MiB/s no
problems?
>> _______________________________________________
>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>> 
>


------------------------------

Message: 13
Date: Wed, 30 Apr 2008 17:39:11 -0400 (EDT)
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Subject: Re: [Veritas-bu] Anyone have any tweaks for LTO-4 and emulex
        cards under RHEL5?
To: Jason Slagle <raistlin AT tacorp DOT net>
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Message-ID: <alpine.DEB.1.10.0804301737580.7843 AT p34.internal DOT lan>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

Also for net_buffer_sz I use 1megabyte..
Also the one everyone forgets:

NUMBER_DATA_BUFFERS_RESTORE

This definitely can speed up restores as well I use 32 for that too)

On Wed, 30 Apr 2008, Jason Slagle wrote:

>
> Having just gone through that (Albiet with Qlogic) this is what I did:
>
> Make sure the st driver is set to a reasonable buffer size (I did this
in 
> /etc/modprobe.conf):
> options st buffer_kbs=1024
>
> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS
> echo "1048576" >/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS_DISK
> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS
> echo "16" >/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS_DISK
>
> echo "kernel.shmmax = 268435456" >>/etc/sysctl.conf
>
> echo "65536" >/usr/openv/netbackup/NET_BUFFER_SZ
>
> Doing this, I am able to hit 70-80MB/s to the tape from my DSSU, and I
think 
> I COULD actually go faster, but my DSSU is limiting it.
>
> Someone else amy have better values for these to improve it more - I
would 
> love to hear them also.
>
> Jason
>
> -- 
> Jason Slagle
> /"\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
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> On Wed, 30 Apr 2008, Justin Piszcz wrote:
>
>> I am only seeing 8-10MiB/s directly from RAM (/dev/shm) where if I
write
>> the same data to an LTO-3, I see regular speeds, 60-90MiB/s no
problems?
>> _______________________________________________
>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
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>> 
>


------------------------------

Message: 14
Date: Wed, 30 Apr 2008 17:44:20 -0400
From: Norman_Ellis AT discovery DOT com
Subject: Re: [Veritas-bu] Best setup for NetBackup in 2 sites across
        the WAN link
To: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Cc: veritas-bu AT mailman.eng.auburn DOT edu,
        veritas-bu-bounces AT mailman.eng.auburn DOT edu
Message-ID:
        
<OF6DF9B29F.6EB260C2-ON8525743B.0075FD61-8525743B.00776842 AT us DOT dci.discov
ery.com>
        
Content-Type: text/plain; charset="us-ascii"

Well if money is no object and you really want a DR solution then the
best 
in my humble opinion is to have a dual node VCS global HA/DR cluster 
between the two sites and configure NBU as a cluster resource. This also

assumes you have libraries and or storage devices with like media drives

so that in the event of a disaster of your primary site, you can recall 
your media and place it in the library in the DR site. This way your NBU

catalog is as good as the last replication cycle of the VCS. If you are 
using strictly disk between the sites with cross replication then of 
course you are as good as the last replication cycle there as well. But 
truthfully the best DR solution is one that's right for your companies 
business requirements and if that's what you seek you should spend the
$$ 
for proper consulting with NBU. Or I bet Curtis could be hired for the 
right price ;-)





Justin Piszcz <jpiszcz AT lucidpixels DOT com> 
Sent by: veritas-bu-bounces AT mailman.eng.auburn DOT edu
04/30/2008 05:12 PM

To
Aleksandr Nepomnyashchiy <anepomn AT gmail DOT com>
cc
veritas-bu AT mailman.eng.auburn DOT edu
Subject
Re: [Veritas-bu] Best setup for NetBackup in 2 sites across the WAN link








On Wed, 30 Apr 2008, Aleksandr Nepomnyashchiy wrote:

> Dear Gurus,
> What is the best setup for NetBackup in 2 sites across the WAN link?
>
> I will have a tape library on each site.
>
>
> - Should I purchase 2 NetBackup servers and manage them separately?
> - Is it better (or cheaper) to purchase NetBackup server for a primary
> site and media manager for the remote site?
>
>
> Thank you,
> Aleksandr
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>

2 masters and manage separately so if one environment goes down, the
other 

will continue to run

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