I agree with you on the extra space required arguments. One thing that I
think starts to become more apparent is when you talk large amounts of data
(PBs) and number of devices required. Inline vendors will require you to buy
many devices to keep up with the performance required to backup all
There are some vendors that de-duplicate based on a sliding window out
of a stream of data that can be adversely affected by multiplexing also.
If you take a fixed block the statement I've gotten from the vendors is
that if you mix streams of data using multiplexing the de-dupe ratio can
decrease.
The only downside to not multiplexing is the number of drives you have
to create and configure as well as the number of virtual media you have
to create as well. Depending on the VTL, media can be created by
allocating all the virtual cart space up front of allocating space on
demand. So, if you
Yes, if you do remote NDMP backups to a media server storage unit then
that storage unit will take multiplex streams as normal. Performance is
not spectacular, though. I only use this method in some of our larger
remote offices that have small filers (2TB) and only 2-4 tape drives to
backup the
What's the multiplexing # set to on the schedule? Also, Allow multiple
data streams is checked on the policies, right?
You can have an unlimited number of policies using a storage unit group
as far as I know. We've got well over 100 policies using a storage unit
group with 2-4 storage units in it
The bpdbm parent process spawns a child for just about everything it
does. So, if you have script or reporting tools that are running
bpimagelist, bpmedialist, bpmedia, bpexpdate, etc. it will create child
bpdbm processes for all of those.
Aptare is infamous for creating lots of these and driving
The virus scanner should exclude the bpbkar32.exe process. But, I don't
think that's your root issue here, but rather the millions of files.
Once you start breaking the 1-2 million mark performance goes off a
cliff when doing normal backups.
The best way for you to speed up your backups at this
When you say you used 'bpimport' I'm assuming you did an import of a
media itself. If that piece of media has multiple images on it, like a
Full and a few Incrementals, then you get the total number of files and
sizes for all of those images on the media.
As for getting a file list for an image,
We've been battling this same issue since upgrading to 6.5.1 on our
masters. The VRTSat package is related to this and it's not sure if that
package is creating the directory or NBU processes are. Some things of
note so far is that the '/var/VRTSat/.VRTSat/profile/VRTSatlocal.conf'
file is being
Short answer = SnapMirror, then backup that mirror filer for days/weeks
if you need to. Once your initial mirror is done, it's only the
block-level changes from that point. Also, if you are using NDMP direct
backups, where the filer has tape connectivity, then synthetic backups
are not available.
There's no way to do this in CMD/BATCH scripting that I am aware of. As
a result, I created a .VBS and used LCase to turn the variable into
lower case characters. Someone else on this list might know of a way to
do it within CMB/BATCH by possibly calling an external command or
something, but the
bpgetconfig will allow you to connect to a host and get the version as
well as a multitude of other interesting information.
bpsetconfig is the partner command to make changes.
Regards,
Trey
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ben
.
From: Len Boyle [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 07, 2007 5:06 PM
To: Tharp, Trey; VERITAS-BU@mailman.eng.auburn.edu
Subject: RE: Re: [Veritas-bu] aptare forum?
Hello Trey
Can you tell us how big your database has become. I assume from you note
below that there is only
The alternative to this configuration is to do 'Remote NDMP backups'
This is where the NAS box doesn't have access to the tape drives, but
your media server does. Since in your case you have a SCSI-attached
library this is the method you would have to use. This means all the
NDMP traffic would go
We have just over 6500 clients and 35,000 jobs per day and our database
server is getting buried right now. We plan to upgrade it at the
beginning of next year and hope that will help with the response times
and slowness.
From: [EMAIL PROTECTED]
[mailto:[EMAIL
You can, but it's not officially supported.
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of mark
wragge
Sent: Thursday, October 25, 2007 10:07 AM
To: veritas-bu@mailman.eng.auburn.edu
Subject: [Veritas-bu] how can i back up NT4
I have a sudden
Here's what you need to do to resolve this from the customer side. On
the master that you are running the 'bpmedia -movedb' command create a
host entry for the old_server name and put the IP address of that as the
master. What you need to do is have bpmedia able to talk to a NBU host,
it doesn't
On our HP-UX machines running Oracle the MINCACHE setting is set to
DIRECT and we have not seen any performance issues w/ NetBackup. I
wouldn't be too concerned about it.
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of net
backup
Sent: Monday,
You can use 256KB buffers in Windows with either STK or the Veritas tape
drives. For the Veritas tape drives it works with no issue. For the STK
drivers you have to have an updated tape.sys from Microsoft that's
included in SP2 or as a hotfix for SP1. With this updated tape.sys file
the 256KB
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