Dear All,
We've just purchased ClearCase and I want to create VOB on filer F720. But I met difficulties .
When I run making vob command, there are some error showed.
#cleartool mkvob -tag /proj/view -public /proj/test.vbs cleartool: Error: Unable to contact albd_server on host 'cptlfiler'
cleartool: Error: Unable to create view
"/data/project/view/test1.vws".
We have mounted a diretory of cptlfiler on /proj.
Someone tell me that technical reason is that we can not do NFS mount over NFS. There is no way to created a view on filer without ClearCase.
Have anyone met this qestion like me? How do you deal with it? if it not feasible to create vob on filer, we can't benefit from snapshot any more for vob. Sincere thank for you help.
BR
Amy
As I remember (check Rational's help site - there are help pages specifically for using the netapps) you can only put the storage pools on the toaster. This is done using the "-pooltalk" option. The vob has to reside on a vobserver. This has to do with the MVFS filesystem design - vobs are mounted as an MVFS file system, and the toaster doesn't support this. Hence, the need to put the vob on a system that can serve up the vob. (sorry this sounds disjointed - I haven't had my coffee yet ;p )
On Wed, 23 Feb 2000, Amy Cheng (r46990) wrote:
Dear All,
We've just purchased ClearCase and I want to create VOB on filer F720. But I met difficulties .
When I run making vob command, there are some error showed.
#cleartool mkvob -tag /proj/view -public /proj/test.vbs cleartool: Error: Unable to contact albd_server on host 'cptlfiler'
cleartool: Error: Unable to create view
"/data/project/view/test1.vws".
We have mounted a diretory of cptlfiler on /proj.
Someone tell me that technical reason is that we can not do NFS mount over NFS. There is no way to created a view on filer without ClearCase.
Have anyone met this qestion like me? How do you deal with it? if it not feasible to create vob on filer, we can't benefit from snapshot any more for vob. Sincere thank for you help.
BR
Amy
----------- Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO
Amy> We've just purchased ClearCase and I want to create VOB on filer Amy> F720. But I met difficulties .
You can't do this. All you can do is put the View Storage Pools onto a Filer or Filers. We used to do this here, but we're moving to just putting the views on arrays attached to the servers. It's easier to manage.
Amy> When I run making vob command, there are some error showed.
Amy> #cleartool mkvob -tag /proj/view -public /proj/test.vbs Amy> cleartool: Error: Unable to contact albd_server on host 'cptlfiler'
cleartool: Error: Unable to create view
Amy> "/data/project/view/test1.vws".
Amy> We have mounted a diretory of cptlfiler on /proj.
Amy> Someone tell me that technical reason is that we can not do NFS Amy> mount over NFS. There is no way to created a view on filer Amy> without ClearCase.
The problem is that the MVFS filesystem that ClearCase uses for versioning control won't work over NFS, it has to be local to the server.
Amy> Have anyone met this qestion like me? How do you deal with it? if Amy> it not feasible to create vob on filer, we can't benefit from Amy> snapshot any more for vob. Sincere thank for you help.
You can't snapshot a VOB anyway, since a snapshot happens at a random time, and there's no way to make sure that the snapshot would be consistent. This is just like using a database with Snapshots, you need to do this:
1. Lock the database (VOB) 2. Take the snapshot 3. Unlock the database.
Any other way will lead to madness and insanity. Before I got here we had been doing backups by just dumping the VOBs to tape. We lost a major VOB from a system crash and retored from our last backup. Needless to say, it was not internally consistent and lots of info got lost. We now make sure to lock the VOBs before we do any sort of backups.
In summary:
1. VOBs cannot be on NetApps 2. VIEWS can't really be on NetApps, though you can put the View Storage Pools onto a NetApp and leave the View DB on the server. 3. You can NOT snapshot a VOB without first locking the VOB to make sure it is consistent.
John John Stoffel - Senior Unix Systems Administrator - Lucent Technologies stoffel@lucent.com - http://www.lucent.com - 978-952-7548 john.stoffel@ascend.com - http://www.ascend.com
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Amy Cheng (r46990) -
Jay Orr -
John Stoffel