Pluswell dual-Machine fault-tolerant and Veritas backup scheme

The operation of modern enterprises and institutions is more and more dependent on computer systems, if the data processing center can not operate normally, or because of other circumstances caused by the loss or damage, it will cause business pauses, and for enterprises to bring irreparable losses. Landtek Teda with its rich research and development experience, to provide you with high availability products and quality services, launched the Landtek Taida dual fault-tolerant solutions, the purpose is to ensure that the data will never be lost and the system never stop, while saving a lot of money for users.

Landtek Teda Dual Fault tolerant system combines the security reliability of the disk array storage system and the professional backup and recovery software system with the advantages of high availability of the dual fault tolerant technology and the advantages of the three. To provide users with high availability and high security data storage, service system.

Second: Customer demand analysis and technical solutions

The user needs the system function request now:

Fibre Channel disk array cabinets:

Storage capacity >=1T, dual RAID controller redundancy, the controller requires 4 host channel and 4 hard drive channel. The number of single cabinet supported hard drives is greater than 13. Support for online capacity expansion, RAID level support: 0, 1, 5, 0+1, 10, Hotspare.

The host connects the disk array cabinet through the HBA card.

Dual-Machine hot standby software:

Requires support for active/active, Active/standby, support for load balancing, support for application restart, automatic/manual switching, automatic event triggering, and switching to client transparency.

To load the tape drive automatically:

Requires the tape slot to be greater than or equal to 8 and driven to SDLT (320). Tapes require SDLT (320) *8, cleaning belt SDLT.

Professional backup software:

Application environment: 5 servers including 1 sets of two-machine hot standby SQL database server, two independent SQL database servers, the operating system is Windows 2003 server. Requires backup software to support open file backup, database online backup, dual-computer system backup, disaster recovery.

The system runs stably, the double Machine mutual aid, the data security, the timely backup, simple easy operation maintenance, the product request quality reliable, the Post-sale service is prompt quickly.

(1) Demand analysis:

Integrated customer requirements, we believe that the use of Pluswell cluster dual-machine hot standby software through the server's HBA card (2gb/s Fibre Channel pci-x HBA) to connect the Dell AS-CX300 disk array to achieve the SQL database server dual-computer fault-tolerant system.

Data backup aspects: Using the Dell Power Vault 122T tape drive to Veritas Backup Exec backup software to achieve data backups.

According to the analysis, we think the network topology of this scheme is as follows:

(2) Solution

(1) Soft/hardware selection

The Dell CX300 entry-level DELL/EMC RAID storage System with 2Gbps Fibre Channel host interfaces and Fibre Channel disk drives to support direct attached storage (DAS), storage Area Network (SAN), or Dell PowerVault Network attached storage (NAS). Up to 18TB of Fibre Channel 2 (FC2) drive storage capacity or 18.9TB ATA Drive storage capacity (with Dae2-ata drives), with 4 front-end optical ports per array. Each storage processor (SP) is equipped with 2 2Gb front-end optical ports and each optical port provides up to 200mb/s Fibre Channel throughput (see Appendix 2 for specific parameters). You can fully meet the fast access to your large amount of data. The powervaulttm122t SDLT320 automatic mount tape drive supports up to 8 SDLTTAPE1TM data cartridges, backward-compatible readable DLT 8000, DLT 7000, DLT 4000 and DLT VS80, backward-compatible readable writable SDLT 220. Maximum storage data available: Uncompressed: 1.28TB or compressed: 1 2.56TB. Transfer rate and Backup rate: uncompressed maximum up to 16mb/seconds or compressed up to 32mb/seconds (see Appendix 2 for specific parameters). To meet the needs of your large data storage.

Landtek Taida Pluswell Dual-machine software certified by Dell and widely used by the dual-computer hot backup software, with Dell Gold service. Support for SCO UNIX (Open server and UnixWare), Linux (Red hat,turbolinux,xteamlinux,suse, etc.) and Windows 2000/2003 operating systems, support Active/active, Hot standby of Active/standby mode. With multiple detection function, can the system, network and database detection and monitoring, to achieve automatic service switching (see Appendix 2 for specific parameters).

Professional backup software Veritas Backup Exec can provide certified, comprehensive, and cost-effective protection for Microsoft Windows server environments. Compatible with Microsoft 100%: Provides high reliability and 100% data exchange with backup utilities embedded in Windows nt/2000. Choose a different module depending on your needs. SQL database module can realize the online backup of database, open file module can realize the backup of open file. The disaster recovery module enables data recovery after data failure (see Appendix 2 for specific parameters).

(2) Dual-Machine hot standby form:

Active/standby mode is a traditional dual-computer hot backup solution, the main machine running, standby state, when the host failure, the standby immediately start to replace the service. Because the standby platform does not have other traffic, so the user access speed after the failover will not have a big impact, such a fault-tolerant way is mainly applicable to the user only one application, the main standby equipment configuration is not the same, and the user access to a large number of cases.

(3) Data backup mode:

The network is backed up by backup software on the backup server, Veritas Backup Exec, to back up data on the network to the tape drive.