Re: [Networker] Persistent Binding Issue (again)
2008-06-27 11:13:22
Hello,
Along with steps to do the Persistent binding with the registry values and
utilizing IBM drivers, take a look at Persistent binding on the FC HBA
parameter, this should also be employed to avoid re-sequiencing.
Thanks
Matthew Huff <mhuff AT OX DOT COM>
Sent by: EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
06/27/2008 09:57 AM
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Matthew Huff <mhuff AT OX DOT COM>
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Re: [Networker] Persistent Binding Issue (again)
If you take a look at the Readme.txt file on IBM's ftp site (use the
/Latest, not WHQL):
ftp://ftp.software.ibm.com/storage/devdrvr/Windows/Win2003/Latest/
4) Version 6.1.6.2 and later versions of the device driver have an option
for enforcing file names for
tape drives that will persist across reboots of the operating system.
For example, if your tape drive
has the name \\.\tape3 and the persistent naming option is used, then
\\.\tape3 will be reserved for
use by that device after an operating system reboot. To take advantage
of this feature, place a DWORD
value in the registry called PersistentNaming and assign it a value 1
at:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\ibmtp2k3
and reboot your system.
This isn't "Persistent binding" because the issues in Windows aren't
related to FC binding. Even if devices are correctly setup to persistent
bind, they will still have reordering issues under Windows. The issue is
the Window Plug & Play driver will dynamically assign storage devices
names starting with \\.\Tape0, etc.. Once you modify this registry setting
the devices will show up as \\.\Tape<SerialNumber> which will persist.
There is a similar fix on technet for non-ibm drivers. Again, it doesn't
have anything to do with FC binding (the reason for confusion is that
under unix persistent binding and persistent naming are the same, but not
in windows)
For windows 2003:
http://support.microsoft.com/kb/873337
For Windows 2000:
http://support.microsoft.com/kb/889330/
----
Matthew Huff | One Manhattanville Rd
OTA Management LLC | Purchase, NY 10577
www.otaotr.com | Phone: 914-460-4039
aim: matthewbhuff | Fax: 914-460-4139
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Alexander Kaasjager
Sent: Friday, June 27, 2008 10:29 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Persistent Binding Issue (again)
> ...
> >We had an incident yesterday following the reboot of our Networker
> >Server with the monthly MS patches where we could not
> control the tape
> >drives and Networker was confused as to which tape drive was
> which (the
> >persistent binding thorn in our sides).
> ...
>
>> Did you try Microsoft's hotfix for this problem?
>> KB #873337 (http://support.microsoft.com/kb/873337/) is
> Yes - we've tried that in the past and it apparently does not work...
Including the registry setting? It is somewhat below in the article,
I've
seen people read over it - unfortunately, that setting is exactly what
should solve it.
And is the Removable Storage service disabled?
Best of luck,
Alex
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