On Mon, 8 Nov 2004, Horst Birthelmer wrote: > > On Nov 8, 2004, at 2:50 PM, Mike Burns wrote: > > > > > - Volume names longer than 22/31 characters. > > > > Is this a "must have" or just a "want to"... ??? >
This is a "want to". We have several hundred filesets with over 31 character names. We would have to get creative with naming some of the volumes. > > - Faster fileserver process start up and stop times. This has improved > > greatly from when we used to use AFS, but can still be slow for large > > number of volumes on a server. At some point after 10K-40K volumes > > are on > > a (Solaris 9) server start/stop times can jump from less than 30 > > seconds > > to a handful of minutes and even 10-20 minutes. We'll have a minimum > > of > > 160K volumes. We probably have enough file servers now to stay around > > 10K volumes per server, but if we decide to use .backup volumes that > > number will double and we may hit the performance inflection point. > > In your tests, did you use the --fastrestart switch on configure?? > No I did not. I think that when reading the description of what the fast restart option did, it implied I would have to pay more attention to restarts and manually running the salvager when it was needed rather than having it run automatically. > > > > - Incremental file level backups. I haven't looked into this with > > OpenAFS. We've always used IBM's TSM which supported backing > > up/restoring > > ACLs for files and directories with DFS and AFS. Do any backup > > products > > support this for OpenAFS or would we have to back up an entire volume > > at a > > time? > > > > That depends on what you want to backup and when. I think we don't have > the resources to compete with TSM. > Do we actually want to?? > > You cannot do a filelevel incremental backup when your atomic units of > the system are volumes unless you use AFS as a normal filesystem and > backup it like any other filesystem by use of the client. Maybe > somebody comes up with a clever idea on this one. You can backup your > partition for example from the fileserver or something like that. > I found a couple of references since sending this email. A product called TiBS and someone who had written a taracl program that saves the ACLs. > Horst > > - Mike -------------------------------------------------------------------------- Mike Burns Emerging Technologies Group [EMAIL PROTECTED] Academic Services and Emerging Technologies +1 814 863 5606 The Pennsylvania State University _______________________________________________ OpenAFS-info mailing list [EMAIL PROTECTED] https://lists.openafs.org/mailman/listinfo/openafs-info
