Enterprise Accident

In the face of various risks, a higher availability backup strategy is essential.

Hard Drive Failure

Several hard disks failed at the same time, causing data corruption.

Data Deletion

Important data is deleted by human actions.

File System Crash

An unexpectedcrash occurred in the system.

Virus Attack

Hackers and ransomware are indiscriminate attacks.

Unexpected Power Outage

There is no warning of a power failure. The UPS system has failed.

Natural Disaster

Encounter various natural disasters that cause downtime.

Data Protection Risk

A.
  • Traditional local-side backup, it difficult to recover from error data deletion, hard disk failure, virus attack, and data corruption caused by file system damage, requires a long recovery time, which greatly affects the normal operation of the enterprise.
    • B.
  • Suppose a company with multiple branches or data centers in different locations. In the event of a major accident or natural disaster, recovery may take longer than expected. This may also involve rebuilding a new data center.

    • Storage Disaster Recovery Solution

    Data Protection Solution

    A.
  • Enterprise Local Backup

    • When using a data volume for temporary data backup, setting up quick snapshots for local backups will minimize data recovery time. The well-configured local backup solution can resolve hard driver failures, virus attacks, and file system crashes in a very short time and bring the service back online immediately.

    B.
  • Enterprise Remote Replication

    • The remote site backup solution is ideal for data volumes that contain important data such as contract records, purchase orders. These data volumes are stored in an online database storage which is not accept any downtime.{0} By installing remote replication, it can bypass unknown interruptions and data loss due to disasters. Data security can also be improved by using remote backup data volumes as a temporary service or as a direct replacement.

    Availability Percentage

    The following table illustrates QSAN’s installation suggestions for different applications to match their availability rates of data volumes.
    Availability Percentage{0}(Yearly Downtime) Applications1 Installation Suggestions
    99%
    		 · Archiving{0}· General data backup
    99.9%
    		 · Employee data backup{0}· Branch data pool
    99.99%
    		 · Email service{0} · Surveillance data{1} · Database
    99.999%
    		 · Online nonstop service{0} · Confidential data{1} · Tax data
  • The application’s availability rate may differ in various environments. Please estimate the importance of your data volumes before arranging the installation plan.
  • When using large capacity SATA hard drives (>=500GB) for building RAID volume, QSAN suggests using RAID 6 or SAS hard drives to reduce failure rate. Single SATA hard drive BER (Bit Error Ratio) is around 1 out of 10^14 and the AFR (Annual Failure Rate) is depending on the hard drive type (desktop or enterprise), when a RAID 5 volume is built with 8 x 1TB enterprise SATA hard drives (AFR=0.0075), the error rate of 1 hard drive rebuilding is 56% which is too risky. And the error rate increases with larger hard drives.
  • Plan to reach application’a availability rate to 99.99%, you can estimate to enable Remote Replication or not. Plan to reach application’a availability rate to 99.999%, you can estimate to enable Local Clone or not.

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    ‧ How to use the QReplica
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    ‧ Try RAID calculator to estimate your needs
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    The Highly Available Solution Advantages

  • Built-in storage array{0}
  • No performance impact{0}
  • Multipath and failover{0}
  • No extra software fee or installation{0}
  • Support 3rd party backup{0}
  • Fast rollback when virus attacks or accident deletes{0}
  • Reduce the risks of hard drive failure{0}
  • Protect data against disasters{0}
  • Increase application availability{0}
  • Automatically schedule data backup{0}
  • Traffic shaping feature to avoid traffic congestion{0}
  • Flexible configurations for different storage plans.