This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
------_=_NextPart_001_01C32618.DC9B6D30
Content-Type: text/plain
I don't think there is a "truly unique ID". It's all just the Volume label.
That why each media server must be managing a unique set of ID's. In other
words, if the media servers are sharing a common master, then the volume
ID's must be unique within that set of servers. Don't duplicate ID's.
The Vol DB then, on the master server, knows about all the tapes that can be
used by all the different media servers. When a tape is assigned to a media
server, then the volume ID entry is made in that media servers media
database. When the tape is unassigned, it'll be removed. Don't label two
pieces of media the same name if it's got a common master server.
I'd go on to say that if you've got more than one master server, to still
not duplicate labels. Operationally, you're just begging them to be mixed
up. "And which tape 000001 do you want inserted?".
-M
-----Original Message-----
From: MOYES-CLARK,SHANNON (HP-FtCollins,ex1) [mailto:shannonm AT hp DOT com]
Sent: Thursday, May 29, 2003 1:25 PM
To: 'Donaldson, Mark'; MOYES-CLARK,SHANNON (HP-FtCollins,ex1);
'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: [Veritas-bu] Media Unique ID - from Media GUID
Hi all
You are right, my bad - the media database not the Volume Database. The
GUID would be the unique id of the media. Can I label two pieces of media
with the same name via "bplabel"? How then does Net Backup tell them apart?
There must be some truly unique id on each piece of labeled media, right?
How would I get that unique name.
Shannon
Shannon J. Moyes Clark
Software Engineer
Storage Software Division
Hewlett Packard Company
shannon.moyes-clark AT hp DOT com < < mailto:shannon.moyes-clark AT hp DOT com
<mailto:shannon.moyes-clark AT hp DOT com> >>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
All of that legal stuff about the opinions expressed here being mine and not
those of HP.
-----Original Message-----
From: Donaldson, Mark [mailto:Mark.Donaldson AT experianems DOT com]
Sent: Thursday, May 29, 2003 12:21 PM
To: 'MOYES-CLARK,SHANNON (HP-FtCollins,ex1)';
'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: RE: [Veritas-bu] Media GUID's
The volume database is on the master server so it's common to the two media
servers. Each media server has it's own media database but that's
different. Use labels such that no two are the same between media servers.
GUID? I don't recognize the acronym.
Almost everything you want to know about a given piece of media is available
from the "vmquery" command which queries the Vol DB on the master server.
HTH - Mark
-----Original Message-----
From: MOYES-CLARK,SHANNON (HP-FtCollins,ex1) [mailto:shannonm AT hp DOT com]
Sent: Thursday, May 29, 2003 10:38 AM
To: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: [Veritas-bu] Media GUID's
Hi all,
So if I have two media servers and one master server and they each have
their own volume database, it is possible to get media with the same label.
Is it possible / how do I get the GUID for a given piece of media from the
command line?
Thanks,
Shannon
Shannon J. Moyes Clark
Software Engineer
Storage Software Division
Hewlett Packard Company
shannon.moyes-clark AT hp DOT com < < mailto:shannon.moyes-clark AT hp DOT com
<mailto:shannon.moyes-clark AT hp DOT com> >>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
All of that legal stuff about the opinions expressed here being mine and not
those of HP.
------_=_NextPart_001_01C32618.DC9B6D30
Content-Type: text/html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=US-ASCII">
<TITLE>Message</TITLE>
<META content="MSHTML 5.50.4926.2500" name=GENERATOR></HEAD>
<BODY>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff size=2>I
don't think there is a "truly unique ID". It's all just the Volume
label. That why each media server must be managing a unique set of
ID's. In other words, if the media servers are sharing a common master,
then the volume ID's must be unique within that set of servers. Don't
duplicate ID's.</FONT></SPAN></DIV>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff size=2>The
Vol DB then, on the master server, knows about all the tapes that can be used
by
all the different media servers. When a tape is assigned to a media
server, then the volume ID entry is made in that media servers media
database. When the tape is unassigned, it'll be removed. Don't
label
two pieces of media the same name if it's got a common master
server.</FONT></SPAN></DIV>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff size=2>I'd
go
on to say that if you've got more than one master server, to still not
duplicate
labels. Operationally, you're just begging them to be mixed up.
"And
which tape 000001 do you want inserted?".</FONT></SPAN></DIV>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=733512519-29052003><FONT face=Arial color=#0000ff
size=2>-M</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> MOYES-CLARK,SHANNON
(HP-FtCollins,ex1) [mailto:shannonm AT hp DOT com]<BR><B>Sent:</B> Thursday,
May 29,
2003 1:25 PM<BR><B>To:</B> 'Donaldson, Mark'; MOYES-CLARK,SHANNON
(HP-FtCollins,ex1); 'veritas-bu AT mailman.eng.auburn DOT
edu'<BR><B>Subject:</B>
[Veritas-bu] Media Unique ID - from Media GUID<BR><BR></FONT></DIV>
<DIV><SPAN class=112441319-29052003><FONT face=Arial color=#0000ff size=2>Hi
all</FONT></SPAN></DIV>
<DIV><SPAN class=112441319-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=112441319-29052003><FONT face=Arial color=#0000ff size=2>You
are right, my bad - the media database not the Volume Database. The
GUID
would be the unique id of the media. Can I label two pieces of
media with the same name via "bplabel"? How then does Net Backup tell
them apart? There must be some truly unique id on each piece of labeled
media, right? How would I get that unique name.</FONT></SPAN></DIV>
<DIV><SPAN class=112441319-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=112441319-29052003><FONT face=Arial color=#0000ff
size=2>Shannon</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV> </DIV><!-- Converted from text/plain format -->
<P><FONT size=2>Shannon J. Moyes Clark<BR>Software Engineer<BR>Storage
Software Division<BR>Hewlett Packard Company<BR>shannon.moyes-clark AT hp DOT
com
< <<A
href="mailto:shannon.moyes-clark AT hp DOT com">mailto:shannon.moyes-clark AT
hp DOT com</A>>><BR>-
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<BR>All of
that legal stuff about the opinions expressed here being mine and not those
of
HP.<BR> </FONT> </P>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Donaldson,
Mark [mailto:Mark.Donaldson AT experianems DOT com] <BR><B>Sent:</B>
Thursday, May
29, 2003 12:21 PM<BR><B>To:</B> 'MOYES-CLARK,SHANNON (HP-FtCollins,ex1)';
'veritas-bu AT mailman.eng.auburn DOT edu'<BR><B>Subject:</B> RE:
[Veritas-bu]
Media GUID's<BR><BR></FONT></DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2>The volume database is on the master server so it's common to the
two
media servers. Each media server has it's own media database but
that's different. Use labels such that no two are the same between
media servers.</FONT></SPAN></DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2>GUID? I don't recognize the acronym.</FONT></SPAN></DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2>Almost everything you want to know about a given piece of media is
available from the "vmquery" command which queries the Vol DB on the master
server.</FONT></SPAN></DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=665461818-29052003><FONT face=Arial color=#0000ff
size=2>HTH - Mark</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> MOYES-CLARK,SHANNON
(HP-FtCollins,ex1) [mailto:shannonm AT hp DOT com]<BR><B>Sent:</B>
Thursday, May
29, 2003 10:38 AM<BR><B>To:</B>
'veritas-bu AT mailman.eng.auburn DOT edu'<BR><B>Subject:</B>
[Veritas-bu] Media
GUID's<BR><BR></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003>Hi all,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003> So if I have two media
servers
and one master server and they each have their own volume database, it is
possible to get media with the same label. Is it possible / how do
I
get the GUID for a given piece of media from the command
line?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003>Thanks,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=811043616-29052003>Shannon</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV><!--
Converted from text/plain format -->
<P><FONT size=2>Shannon J. Moyes Clark<BR>Software Engineer<BR>Storage
Software Division<BR>Hewlett Packard Company<BR>shannon.moyes-clark AT hp
DOT com
< <<A
href="mailto:shannon.moyes-clark AT hp DOT
com">mailto:shannon.moyes-clark AT hp DOT com</A>>><BR>-
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<BR>All
of that legal stuff about the opinions expressed here being mine and not
those of
HP.</FONT></P></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
------_=_NextPart_001_01C32618.DC9B6D30--
|
