What's wrong with creating an additional storage unit?
---
W. Curtis Preston
Backup Blog @ www.backupcentral.com
VP Data Protection, GlassHouse Technologies
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Kevin
Whittaker
Sent: Wednesday, October 17,
Hello,
This is something I will be configuring ... Soon ...
Small changes to the environment at the moment, just upgraded and got an
un-expected DSU issue to clean first.
Adam.
-Original Message-
From: Curtis Preston [mailto:[EMAIL PROTECTED]
Sent: Thursday, 18 October 2007 4:07 PM
7500 MB/s! That's the most impressive numbers I've ever seen by FAR. I
may have to take back my 10 GbE is a Lie! blog post, and I'd be happy
to do so.
Can you share things besides the T2000? For example,
what OS and patch levels are you running?
Any IP patches?
Any IP-specific
At the risk of chasing windmills, I will continue to try to have this
discussion, although it appears to me that you're already made up your
mind. I again say that no one is saying that hash collisions can't
happen. We are simply saying that the odds of them happening are
astromically less than
Also, Very Interested,
My backup servers are 8core T2000's, we will be putting the SUN nxge
10Gbit cards into them.
I have only seen poor results from the card in back to back
configuration (the network is not at 10Gbit yet). so far i have been
misserable with results in line with Mr
I can think of an issue. When you create a storage unit, you need to
define what drives are in it. Let's say I have a tape library with 10
drives, but I only want to use 4 of them for disk staging. If I create a
storage unit, I am limited to those four physical drives. If I want to
leave
I change the # of drives over the weekend. On Saturday nights, I change
the MAX_STAGING_DRIVES from 2 to 5, if vaulting is almost done and there
is enough drives available. Then after it starts I change it right
back. I am concerned that have to deal with a storage unit will cause
issues with
I'm not yes seeing this as a problem,
Doesn't netbackup Storage units consider all available drives, of a particular
density eg HCART2, for the library eg ACS 0, that are configured in netbackup
say 10 of them, fair game for any storage unit.
if the storage unit staging_A is configured for a
Adam,
Nope you're right which reminds why I don't usually respond to these things
when I have been up all night working support issues and haven't had my
first cup of coffee yet! I was thinking too literal. Yes, you could easily
do that.
Reneé Carlisle
ServerWare Corporation
Devon,
Good to hear that T2000's are screamers.
What are the library/tape drive specs. Are the drives FC attached? or are
they attached via scsi to the media server?
Thanks,
Karl
From: [EMAIL PROTECTED] [mailto:veritas-bu-
[EMAIL PROTECTED] On Behalf Of Peters, Devon C
Sent: Wednesday,
test
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Complaints about blat are silly.
Code it in VB and support it your self.
http://www.freevbcode.com/ShowCode.asp?ID=6915
Jim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dustin
Damour
Sent: Wednesday, October 17, 2007 9:09 PM
To:
What you must grasp is that it is *impossible* to
represent/re-create/look up the values of 2^65536 bits in fewer than
2^65536 bits--unless you concede that each checksum/hash/fingerprint
will represent many different values of the original data--any more
than
you can represent three bits of
So I need to change the expiration date on a bunch of images to infinity
(for legal reasons). I plan to write a script to parse a text file taken
from a catalog search for the backupids of the needed images. I tested
out changing the expiration date of an image to infinity manually first.
When I
This is the end of time for unix. The end of the unix clock.
http://en.wikipedia.org/wiki/Unix_time
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ellis,
Jason
Sent: Thursday, October 18, 2007 10:08 AM
To: Veritas-bu@mailman.eng.auburn.edu
I guess I should try a Google search first, of course I didn't expect
this to be that easy to find either:
http://seer.entsupport.symantec.com/docs/235014.htm
Jason Ellis
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 18, 2007
On Thu, 18 Oct 2007, Ellis, Jason wrote:
So I need to change the expiration date on a bunch of images to infinity
(for legal reasons). I plan to write a script to parse a text file taken
from a catalog search for the backupids of the needed images. I tested
out changing the expiration date
Jason
Well the date is identical to what I see on the windows master Server -
19-01-2038 :-)
Veritas configured date perhaps? Life cycle of OS time perhaps?
either way, I wont wanna touch this product at that time of my life :-)
Regards
Simon Weaver
3rd Line Technical Support
Windows
Hints and answers in-line below...
I am trying to write menu for operator so they can do following task
only in Netbackup .. If any body has script , please forward me. We are
having NBU 6.5
1). Check backup status whether failed , missed and completed for a host
in last 24 hours ?
bperror
Hardware compression on your tape drives buys more than saved tapes - it
buys reduced backup times. I found that out way back when on DDS
tapes. We do compression on our stuff (and I have at many jobs) and
have yet to see a restore fail that wasn't due to an issue traced to the
original backup
Dear All,
How many tape drives can be used on my server?
I was under impression that you need license for each drive while
get_license_key reports Feature:Library Based Tape Drives.
Thank you,
Aleks
[EMAIL PROTECTED] ~ # /netbackup/openv/netbackup/bin/admincmd/get_license_key
January 19, 2038 is the end of Unix time and is the unix equivalent of what
Y2K was to other operating systems and applications coded in Cobol and
Fortran.
http://en.wikipedia.org/wiki/Year_2038_problem
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
So you're OK with hash-based de-dupe, which everyone acknowledges has a
chance (although quite small) that you could have a hash-collision and
potentially corrupt a block of data somewhere, sometime, when you least
expect it...
But you're NOT ok with the long-running industry standard of
So I need to run a command and then store the output of that command in
a variable for later use. In UNIX this is easy, just put the command
into back-quotes and place it in the variable you want the results to be
stored in. It doesn't work this was in the Windows shell.
Is there anybody out
I'd be be glad to share...
The OS is sol10 11/06, and I'm running the recommended patch cluster
that was available on 9/12 - kernel patch is 125100-10.
For tunables, I've tested quite a few different permutations of settings
for tcp, but I didn't find a whole lot to be gained from this.
Microsoft's Document
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/ntcmds_shelloverview.mspx?mfr=true
SET VARNAME=123
ECHO %VARNAME%
-Jonathan
From: [EMAIL PROTECTED] on behalf of Ellis, Jason
Sent: Thu 10/18/2007 2:21 PM
Actually I want to do this (done in UNIX)...
varname=`command`
...in windows.
This runs 'command' and the resulting output of 'command' is stored in
varname.
Jason Ellis
Technical Consultant
IT Storage - Data Protection
Office: 714/520-3414 | Mobile: 714/889-8734
Fax: 714/520-3470
Sorry, but I just can't keep from jumping in at this point.
Not taking either side, but...
Are you seriously suggesting that a quote from Wikipedia constitutes
empirical scientific research? I could place a posting on there that
either concurs with, or totally rejects the position of that
for /F tokens=* %%I in ('command') do set output=%%I
Remember, two %s in a batch file, one % on the command line.
C:\for /F tokens=* %I in ('time /T') do set var=%I
C:\set var=3:01p
C:\echo %var%
3:01p
C:\
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
Devon,
What is your data type your backing up? How much data?
Thanks,
Chris Hall
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peters,
Devon C
Sent: Thursday, October 18, 2007 3:10 PM
To: [EMAIL PROTECTED];
The data is oracle database files and archive logs, and they compress
real well. The largest single database is about 4TB.
-devon
From: Hall, Christian N. [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 18, 2007 12:22 PM
To: Peters, Devon C; [EMAIL
2038 is the end of UNIX epoch in 32bit systems. In 64bit systems is some
ridiculous value after the sun explodes etc
Question is if you import those images from a 32 bits NetBackup to a 64 bit
NetBackup, will they still expire in 2038 or automatically change to the 2^64 ?
- Mensaje
Is rss enabled? Not sure what you're asking here...
RSS is receive-side scaling, which apparently helps improve performance:
http://www.microsoft.com/whdc/device/network/ndis_rss.mspx
I actually just learned about it the other day talking to a 10 GbE NIC vendor.
He asked me that question
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I would say no as Wikipedia is like an encyclopedia and is a good spot
to start but it isn't peer reviewed published articles so in research it
would not be considered a valid source.
Dustin D'Amour
Wireless Switching
Plateau Wireless
-Original Message-
From: [EMAIL PROTECTED]
I am trying to move our master server running 5.1MP6 to another Solaris
machine. Domain names are staying the same, so only one server could be
up at a time. The L700 tape library robotics are SCSI controlled. The
active server would have the robot connected. CrossRoad routers are
connected to
Glad to have another person in the party. What's your birthday? ;)
Are you seriously suggesting that a quote from Wikipedia constitutes
empirical scientific research?
NO. He said that I was misusing the Birthday Paradox, and I merely
pointed to the Wikipedia article that uses it the same way.
It's not just a Unix thing. It's anyone who measures time the way Unix
measures time, which is the number of seconds since January 1, 1970. A
32-bit number can only count to 2038.
NBU counts that way, which is why all the dates are in this weird number
format (09838938733) unless you
That sounds pretty similar to what ip_squeue_fanout does for Solaris10 - and
using it made a noticable performance improvement:
ip_squeue_fanout
Description
Determines the mode of associating TCP/IP connections with squeues
A value of 0 associates a new TCP/IP connection with the CPU
Standalone tape drives are free. Only ones in a Library/Autoloader will cost
you.
You pay for each tape drive in a library you USE with netbackup.
Whether or not Netbackup checks licensing is up to you to determine.
Jim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL
On Thu, Oct 18, 2007 at 01:44:03PM -0400, Curtis Preston wrote:
So you're OK with hash-based de-dupe, which everyone acknowledges has a
chance (although quite small) that you could have a hash-collision and
potentially corrupt a block of data somewhere, sometime, when you least
expect it...
On 10/18/07, Iverson, Jerald [EMAIL PROTECTED] wrote:
...
that is why i have turned off all hardware and software compression on
my tape drives. imagine trying to store more than 400GB of data onto a
single lto3 tape! they say that you can store up to and even more
than 800GB, but i don't
Devon, just a few more questions:
So you *are* using jumbo frames? I saw that it was enabled in ndd,
but you haven't mentioned it outright.
Also, what network switching equipment are you using for these tests?
Also, I'm curious, how is it that 4Gb/s LTO-3 drives can write
faster than 2 Gb/s
Hi
Try MS Unix Services : A free addon from microsoft - its their version of
cygwin
Then again use cygwin. The MS version is simpler to play with.
From MS
Seamless sharing of data between Windows and UNIX network protocols.
Remote command-line access to both Windows–based computers and
discussion, although it appears to me that you're already made up your
mind.
I'd prefer to say I have little interest in a technology which, by
design, will retrieve a completely different chunk of data than what was
written, with no notice whatsoever. BTW, before you bring out tape
errors
It will import to the value set by the Retention level. The image has the
retention level as an integer. The master server interprets the expiration
based on the retention level.
If you have ret level 13 set at infinity, when you import the tape, it will
still be level 13. The master will
Yep, I'm using jumbo frames. The performance was around 50% lower
without it. I'm not currently using any switches for 10GbE, the servers
are connected directly together.
Re 4Gb vs 2Gb tape drives - since the data is compressed at the drive,
we still need to be able to transfer the data to the
this is not sharing the drives so SSO would not be necessary.
Yes, if one master is shut down and you have both zoned to the tape drives,
then you can do it this way.
Some sites do a poor man's cluster this way. It is really no big deal.
Bobby Williams
2205 Peterson Drive
you need SSO for this to work
=
Carl Stehman
IT Distributed Services Team
Pepco Holdings, Inc.
202-331-6619
Pager 301-765-2703
[EMAIL PROTECTED]
Carl Mathews [EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED]
10/18/2007 04:49 PM
Please respond to
Carl Mathews [EMAIL
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