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- High availability, 24/7 service no downtime if at all possible
- Disaster recovery, replication to secondary site
- Optimized for fast read/write access
- WebDAV
- Needs to handle large amounts of files that greatly vary in size
- handles distributed access
- Archiving solution (snapshot feature)
- Backup solution
- Flexible file structure
- Compatible with JSR 170
- DC goal is to get off of afs for r/w volumes
- migration strategy from AFS to SAN - possibly using symlinks on app servers
- need to be in a place to move off of AFS if we have a crisis
- continuous rsync needed
- some sort of sync match with the database
- short term solution for crisis prep may be different from (more ideal) long term solution
- Cost Issues: will OCFS2 really save us $200k and over what term?
Three uses of afs for smartsite
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- san switch must have hba ports for each of app servers
- hba switches for each of app servers
- alternate is iscusi as link into SAN - scusi over IP
What testing is needed?
- Sakai and OCFS2 via HBA?
- Sakai access to OCFS2 via iscusi (is it possible?)
- Migration strategy?
- Continuous rsync of AFS to SAN?