This post is more than 5 years old
300 Posts
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2230
January 7th, 2011 15:00
.ckpt access only available at filesystem root in DART 6.0 w/SMB2?
Happy New Year folks!
Our NS80 was upgraded to DART 6.0 last week. This week, I discover that clients connected via SMB2 (Vista and Win 7) can only access the .ckpt directory from the filesystem root, i.e. \home_fs01\.ckpt, not \home_fs01\klewis\.ckpt. This is NOT true for XP, Win2003, Mac OS and Linux - they can access .ckpt from any directory just fine.
I have a case open, but I wanted to see if anyone else had seen this. 70% of my environment is Win 7 and most folks just use Previous Versions, but I find this really unexpected.
Karl
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bergec
275 Posts
0
January 11th, 2011 07:00
In fact, it is documented in the Snapsure documentation for NAS 6.0 (pages 52 and 53)
Note that it should work if you disable caching in the redirector as explained in the doc as well:
You can use cd .ckpt with SMB2 by adding an entry to the registry. However, this may affect
performance. You can disable the directory caching feature of the SMB2 client by adding the
following registry entry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters
DirectoryCacheLifetime=0 (REG_DWORD)
Claude
jukokkon
51 Posts
1
January 8th, 2011 09:00
We have the same phenomenon with dart 5.9.49 (at least from there on now running 5.6.50 and still there). It's not actually fs root. I think it's share root. Happens with w2008 (and r2) and win7.
Shares go something like this
fs_root$
fs_root\share
You can access the .ckpt in fs_root$ and fs_root\share levels. But not in fs_root\share\user level.
With xp, 2003, mac and linux .ckpt is accessible anywhere. Win users use previous versions so it's not really that big problem. Wouldn't harm if it gets fixed though.
--
Jussi
bergec
275 Posts
0
January 10th, 2011 09:00
Have you a Service Request number?
Claude
umichklewis_ac7b91
300 Posts
0
January 10th, 2011 10:00
Thanks, Claude - it's 38578758.
umichklewis_ac7b91
300 Posts
0
January 11th, 2011 08:00
Thanks for the solution, Claude!
Unfortunately, requesting a registry change on over 1000 lab workstations and laptops that can have a potential performance impact will be an interesting excercise. I'll just request it and see what happens.
I was just rather surprised that this was not in the DART 6.0 release notes - which I read religiously in December before my upgrade. I was surprised to find a feature I'd used since DART 5.3 was suddenly... different. I just wish this had been more clearly expressed in the release notes - I re-read the CAVA documentation, based on the CEE changes described in the release notes. I read the Replicator v2 documents, based on the changes in the release notes. I was just disappointed to be surprised - that's all.
All-in-all, I suspect we'll just change our documentation to tell Windows users of all flavors to use Previous Versions and our Mac and Linux users to use .ckpt now.
Thanks for looking into this!
Karl