The document discusses FreeNAS, an open-source Network Attached Storage server based on FreeBSD, and describes its benefits including being free, secure, low-cost, and stable. It then provides information about the current primary and backup servers being used, noting issues with the backup server having insufficient storage space. A proposed solution is to replace the old backup server with a desktop PC that has a larger disk to better meet storage needs over the next 5 years.

1. FreeNAS backup solution a n opensource N etwork- A ttached S torage server based on freebsd kernel

2. Benefits of FreeNAS 1.free,open source 2.no virus(base on freebsd),high security,encrypt(AES 256 bit) 3.low cost of hardware device(only 64M ram consum ption) 4.easy management(based on web GUI) 5.most important--stable.

3. Architecture FreeNAS standby on virtualbox based on win 7

4. Current Information service provided : file sharing,samba hard disk system :single hard disk of HP desptop PC,no raid,no volume management. space information : 140G total,38G used(two years) stable information :2008--2010,stable as a rock HP Desktop

5. Backup Server Information Device information :old IBM x86 pc server,bought in 2003 or 2004 Space information : 33G total Backup information :trigger backup script at 10:00 pm every night and sync the data solution of "primary server" crash :change the backup server's IP to Primary server's IP to take over the file sharing service. user transparent guarantee : rsync daemon to sync primary server data,and switch over to backup server if primary goes down.

6. Problems 1.backup server : hard disk space is too small, 33G total ,all the disk space was used. 2.What happen if primary server goes down now ? (1)the backup server can take over in about 20 minutes, however,data lose will happen (2) Impact: more than 30 users and some critical server will be affected (3 )The workflow which use the freenas as samba disk mapping will be affected hard disk space is too small

7. what have been done 1.remind users to archive the redundant data 2.provide special services for users:burn DVD for user to store data which never be used again. 3.remind users to backup the most important data to local hard disk they are not enough to stop the data increasing

8. solution replace the old backup server with a desktop pc with a large disk space .Within 5 years, It will meet the uses request. resources I need to solve it 1.one desktop PC 2.several IP for test 3.a little space in our datacenter 5th floor

9. Thank you