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- Primary
- Netscaler 7000 (x2) for load balancing
- Sun Fire 4100 (x3) for sakai process
- Sun Fire 4150 (x2) for Oracle database (and manual failover)
- 1 2 TB Hitachi SAN for sakai main data store (independent disk arrays for redundancy - currently 1T LUNS each)
- Secondary
- BlueArc Titan NAS Storage System for backup data storage
- CAS/Kerberos VMware hosts for authentication
- Middleware Accounts Database system (PostgreSQL) for provisioning
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- Currently, we do not purge. Sakai's current version does not offer a tool to do this conveniently. There is hope that in 2 years, Version 3 will correct this problem.
Note Salah Dami
Assistant Director of Technical Services
Information Technology
Essex County College
Tel: 973-877-3502
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- Sakai Servers:
- Sunfire 4100
- 3 - Dual Core AMD Opteron(tm) Processor 275
- 8 GB RAM
- 8 DAS SAS drives (2 OS raid 10, 6 Data disks RAID 5)
- Redundant port 4 GB HBA to SAN Fabric using RDAC for failover to 1 TB LUN
- Database Server:
- Sunfire 4150
- 2 - Dual core AMD Opteron Processor 2.8 GHz (production system and cold backup)
- 8 DAS SAS drives (2 OS raid 10, 6 Data disks RAID 10 for performance)
17) What type of storage do you use for the servers?
- 1 2 TB Hitachi SAN for files mounted from application servers, DAS for database servers (6 each Raid 10 320GB drives)
18) What type of backup system do you use?
- Data is backed up to a secondary storage area (rsync), which is then backed up to tape
- Database is 'Dataguard'ed to another server.
- We also have configured a warm fail over for the database and application servers for high reliability. Recovery from backups are only deemed viable in a DR scenario.
19) Where are the servers hosted? (any cloud computing)
- The servers are hosted at in our primary data center. We are not using any external cloud providers for this service.
20) How do you load balance access to the system?
- We use a Netscaler 7000 with Sticky Sessions, Automatic load balancing and automatic failover. This also allows us to remove one server at a time from use in order to apply any rolling patches if needed. The load balancing is for the application servers only. There is no load balancing provision for the database due to costs.
21) What is your Internet connectivity? (T1, DS3, DSL )
- We have 3 one gig ethernet links to two ISPs, a 10g connection to the Texas educational backbone, I2 etc..
22) What is your client connectivity speed? Unsure what you are asking here, can you clarify?
23) Any issues with client software when accessing the system? (eg. Internet Explorer 8, Firefox, toolbars)
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