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Maurice | 8 Nov 2011 17:05

SSR2000

Though not a direct Novell question, I'm guessing some of you have 
experience with this topic;

Looking for some feedback from current (or previous) administrators of 
SSR2000’s…

I maintain one and as a department we are looking to replace it, 
finally, since it’s about 7~9 years past its shelf-life.
We use it to as our internal gateway router and it interconnects 4 LANs 
to our ‘primary’ LAN and each other, all via fiber…

Would you buy or build?
And would you change anything about the path you picked when replacing 
your SSR2000?

Thanks

--

-- 
-Maurice Pelletier
Child Development Services - Cumberland County
50 Depot Road
Falmouth, ME 04105
207-781-8881 (voice)
207-781-8855 (fax)

www.cds-cumberland.org

"Linux -- it's not just for breakfast anymore..."
-Moe
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Scott Campbell | 16 Nov 2011 04:07
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Re: Drives not fully mapping

Just reaching a little here, but do the computers exhibiting the behaviour happen to have an Intel NIC in
them?  And if so do you see events in the System event log with a source of e1kexpress saying something along
the lines of "Network link has been disconnected", you should see it reconnects a couple of seconds later.

--

I'd strongly suggest that you log a SR with Novell (10714075221).  We have one open but we can't duplicate the
issue consistently.  The more people with the SR open the greater the chance of Novell being able to get to
the bottom of the issue.

>>> On 22/10/2011 at 04:13, Peter Crozier <admin <at> acg.com> wrote:

Hi -

Has anybody found a solution to this problem.  We have one Windows 7 Pro
32-bit workstation with latest Novell 2.1 client that has this problem of a
drive letter mapped to a Netware server sometimes not appearing at all in
Windows Explorer or appearing for a while and then disappearing (but in both
instances shows up as being mapped if you try and manually connect to the
drive).  

End tasking explorer.exe and then restarting explorer.exe will make the
drive reappear.  This is not a permanent solution and I was hoping someone
may have found a permanent fix.

We have other Windows 7 Pro machines that map drives persistently without
problems and they use the same versions of Novell Client.  The only
difference I can see is that all the other Windows 7 Pro computers are
64-bit, whereas the problem computer is 32-bit.
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Scott Campbell | 16 Nov 2011 04:25
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How Robust is eDirectory?

Just how robust is the 8.8.x incarnation of eDir?

We are creating a formal DR plan and as part of that we are replicating VMware Guests to a server in another
city.  These replicated guests will be cold and bought up only to test or if we have a major disaster.

To minimise the impact on the email part of the services, we will have a couple of servers running on the
remote host which will have a r/w replica of the root of our tree.  In the event of a disaster the DR sites r/w
replica will be newer than the replicated guests which we would want to power up.  Infact any of the servers
that we want to bring up will have inconsistent views of the state of the tree.

So, is eDirectory smart enough to identify the server that has the most current state of the replica and then
have those replicated servers request the updates from the DR sites r/w replica?  Or would I need to promote
the DR sites r/w replica to master of root and then remove the directory services from each of my replicated servers?

Our tree has fairly minimal actively initiated changes - maybe add a couple of users a year, a dozen file
right changes.

I see that there is a section in the Novell documentation entitled "Disaster Recovery Plan using DSBK" but
that doesn't really seem to even touch on the potential issue - I gather I am just being a little too
paranoid? :-)

Cheers,
Scott
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joe.doupnik | 16 Nov 2011 10:56
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Re: How Robust is eDirectory?

	Your concern is not paranoid at all, just the opposite.
	I don't have good answers to your questions, but I do have an 
observation or two. They amount to this case: master replica holder 
suffered a problem and stopped communicating with other servers in the 
ring. Time passes while I travel, and eventually I discovered the 
situation. I rebooted the master and life resumed with no complaints.
	Were I in your shoes I would thoroughly test the delayed power up 
situation in the lab. I would not ignore DSBK completely, but I would 
get the backups, move them to the down servers on a regular basis and 
restore them when a server is started (finesse with lan connectivity, 
ifdown eth0 style, would be required to avoid exposing the old replica).
	The deep down problem, as I see it, is an old replica has pending 
updates which upon a server restart it tries to complete and they 
conflict with current conditions. To stop that I would remove a replica 
holder from the ring, shutdown the server, and later re-add it when 
ready. This should eliminate the pending transaction problem.
	Joe D.

On 16/11/2011 03:25, Scott Campbell wrote:
> Just how robust is the 8.8.x incarnation of eDir?
>
> We are creating a formal DR plan and as part of that we are replicating VMware Guests to a server in another
city.  These replicated guests will be cold and bought up only to test or if we have a major disaster.
>
> To minimise the impact on the email part of the services, we will have a couple of servers running on the
remote host which will have a r/w replica of the root of our tree.  In the event of a disaster the DR sites r/w
replica will be newer than the replicated guests which we would want to power up.  Infact any of the servers
that we want to bring up will have inconsistent views of the state of the tree.
>
> So, is eDirectory smart enough to identify the server that has the most current state of the replica and
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Joe Acquisto | 16 Nov 2011 19:47
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delete linux file that begins with special character

I have a directory that contains a zero length file with this name "<table
border=5>" (no quotes).  Cannot delete it.  Know how to delete files
starting with - but those techniques to not seem to work on this one. So
far, Google is not my friend.

joe a.
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Joe Doupnik | 16 Nov 2011 19:49
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Re: delete linux file that begins with special character

On 16/11/2011 18:47, Joe Acquisto wrote:
> I have a directory that contains a zero length file with this name "<table
> border=5>" (no quotes).  Cannot delete it.  Know how to delete files
> starting with - but those techniques to not seem to work on this one. So
> far, Google is not my friend.
>
> joe a.
>
----------
     Man rm. See the -i option to invoke interactive mode. rm -i *table* 
would be useful.
Similarly, escape the special characters, using a backslash prefix.
     Joe D.
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Scott Campbell | 16 Nov 2011 20:06
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Re: How Robust is eDirectory?

Thanks for the comments Joe.

Definitely appreciate the testing aspect which will happen, though the concern around that is 'what I
don't see going wrong under the covers'.

Our DR servers will regularly be updated with a snapshot, so at worst they will be 7 days old, though if
bandwidth permits we want 1 day.  The DR guests will be kept powered off except for testing purposes which
will occur in an isolated environment.

If we activate our DR server guests then this constitutes a catastrophic event at our main site, as such the
original servers will be isolated - if they survive then when we get access to the site they would be wiped
and our DR server guests would be moved back on to the production hosts.

So my primary concern is

ServerA snapshot occurs at 01:00 and gets copied ta ServerA_DR - at this point ServerA_DR is an 'exact copy
of ServerA production'
ServerB snapshot occurs at 01:10 and gets copied as ServerB_DR - at this point ServerB_DR is an 'exact copy
of ServerB production'

We now have a difference of 10 minutes worth of eDir activity between ServerA_DR and ServerB_DR. 

Catastrophy hits at 01:30, ServerA and ServerB for all intents and purposes are destroyed.

I manually start ServerA_DR then I manually start ServerB_DR.  At this point ServerB_DR has eDir activity
to 01:10, but ServerA_DR has eDir activity up to 01:00.  

- Will ServerA_DR be smart enough to recognise that ServerB_DR has a more recent updates and sync those
updates from ServerB_DR?
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James Taylor | 16 Nov 2011 21:35

Re: delete linux file that begins with special character

I assume you have tried deleting with quotes and/or escaping the special characters?

I have seen file names that had hidden characters that were extremely difficult to remove.
One thing that has worked for me is to list the file in a gui file manager and rename it.
It will often allow you to rename that way because you are not having to type in the exact name or matching
wildcard string to replace it.
-jt

James Taylor
678-697-9420
james.taylor <at> eastcobbgroup.com

>>> Joe Acquisto <joe.acquisto <at> gmail.com> 11/16/2011   12:47 PM >>> 
I have a directory that contains a zero length file with this name "<table
border=5>" (no quotes).  Cannot delete it.  Know how to delete files
starting with - but those techniques to not seem to work on this one. So
far, Google is not my friend.

joe a.
_______________________________________________
Novell mailing list
Novell <at> netlab1.oucs.ox.ac.uk
http://netlab1.usu.edu/mailman/listinfo/novell
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Joe Acquisto | 16 Nov 2011 22:03
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Re: delete linux file that begins with special character

Yes, I had tried escaping, etc.  no joy.

If the suggestion Joe D made had not worked, I would have tried to fire up
a gui file manager and a work some visual voodoo.

But, as stated earlier, without his suggestion, it might have been some
time before it dawned on me that it would offer the file, using the wild
cards.  That's one for near term storage.

joe a.

On Wed, Nov 16, 2011 at 3:35 PM, James Taylor <
James.Taylor <at> eastcobbgroup.com> wrote:

> I assume you have tried deleting with quotes and/or escaping the special
> characters?
>
> I have seen file names that had hidden characters that were extremely
> difficult to remove.
> One thing that has worked for me is to list the file in a gui file manager
> and rename it.
> It will often allow you to rename that way because you are not having to
> type in the exact name or matching wildcard string to replace it.
> -jt
>
>
>
> James Taylor
> 678-697-9420
> james.taylor <at> eastcobbgroup.com
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Paul Gear | 16 Nov 2011 22:50
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Re: delete linux file that begins with special character

On 17/11/11 07:03, Joe Acquisto wrote:
> Yes, I had tried escaping, etc.  no joy.
>
> If the suggestion Joe D made had not worked, I would have tried to fire up
> a gui file manager and a work some visual voodoo.
>
> But, as stated earlier, without his suggestion, it might have been some
> time before it dawned on me that it would offer the file, using the wild
> cards.  That's one for near term storage.

Another technique that will nearly always work is using single quotes
(unless the file name itself contains single quotes), because that
prevents all shell variable substitutions, special characters, and
wildcard expansions.

If you ever accidentally create a file beginning with a hyphen, you'll
find that hard to delete as well.  The trick in that case is to indicate
the end of the rm options list by using a double hyphen:
    rm -- -my-file-name-beginning-with-hyphen-

Paul
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