TW200742995A - System of performing a cache backup procedure between dual backup servers - Google Patents
System of performing a cache backup procedure between dual backup serversInfo
- Publication number
- TW200742995A TW200742995A TW095117074A TW95117074A TW200742995A TW 200742995 A TW200742995 A TW 200742995A TW 095117074 A TW095117074 A TW 095117074A TW 95117074 A TW95117074 A TW 95117074A TW 200742995 A TW200742995 A TW 200742995A
- Authority
- TW
- Taiwan
- Prior art keywords
- cache
- data
- backup
- sas
- command
- Prior art date
Links
Abstract
The present invention discloses a system of performing a cache backup procedure between dual backup servers. The system comprises two backup servers, wherein each of the backup servers respectively has a Serial Attached SCSI (SAS) controller, such that two backup severs could be connected to each other via a SAS channel. In each of the SAS controllers, an initiator is defined with a command for executing a cache mirror, and a command for flushing the cache mirror. When one backup server receives a write command and data via an optical fiber cable or an iSCSI channel, the backup server would write the received data into its cache memory. Further, its SAS controller would create a command descriptor block (CDB) for the cache data, wherein the CDB uses the cache mirror command as an operation code, and the SAS controller would add a data header for the cache data, wherein the data header is comprised of messages such as a number of the storage device, and a block address and data length of the cache memory. Then, the data would be transmitted to the SAS controller of another backup server via the SAS channel, such that the SAS controller of another backup server would write the received data into its cache memory. Therefore, via a broadband of the SAS channel, the present invention could rapidly process massive cache data flow, so as to efficiently enhance the storage efficiency of the dual backup servers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095117074A TW200742995A (en) | 2006-05-15 | 2006-05-15 | System of performing a cache backup procedure between dual backup servers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095117074A TW200742995A (en) | 2006-05-15 | 2006-05-15 | System of performing a cache backup procedure between dual backup servers |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200742995A true TW200742995A (en) | 2007-11-16 |
TWI308278B TWI308278B (en) | 2009-04-01 |
Family
ID=45071794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095117074A TW200742995A (en) | 2006-05-15 | 2006-05-15 | System of performing a cache backup procedure between dual backup servers |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200742995A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI423020B (en) * | 2008-04-22 | 2014-01-11 | Lsi Corp | Method and apparatus for implementing distributed cache system in a drive array |
CN112346905A (en) * | 2019-08-08 | 2021-02-09 | 佛山市顺德区顺达电脑厂有限公司 | Data backup system |
-
2006
- 2006-05-15 TW TW095117074A patent/TW200742995A/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI423020B (en) * | 2008-04-22 | 2014-01-11 | Lsi Corp | Method and apparatus for implementing distributed cache system in a drive array |
CN112346905A (en) * | 2019-08-08 | 2021-02-09 | 佛山市顺德区顺达电脑厂有限公司 | Data backup system |
Also Published As
Publication number | Publication date |
---|---|
TWI308278B (en) | 2009-04-01 |
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Legal Events
Date | Code | Title | Description |
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MM4A | Annulment or lapse of patent due to non-payment of fees |