Dell PowerVault MD1000 SAS Solution Manual - Página 7

Procurar online ou descarregar pdf Manual para Armazenamento Dell PowerVault MD1000 SAS Solution. Dell PowerVault MD1000 SAS Solution 35 páginas.

A REFERENCE GUIDE FOR OPTIMIZING DELL™ MD1000 SAS SOLUTIONS

VER A00

http://support.dell.com/support/topics/global.aspx/support/notifications/en/index?c=us&l=en&s

=gen

Enable Background Read Patrol

Background Read Patrol, a function of the RAID controller, is an automatically scheduled

background task that scans and helps resolve possible physical disk errors that may lead to

physical disk failure and result in data integrity issues. Dell recommends implementing Background

Read Patrol in all configurations.

See section 5 for details.

Schedule and run periodic consistency checks / Background Initialization (BGI)

Consistency checks / BGI are performed by many RAID controllers to verify that all stripes in a

redundant virtual disk are consistent and to automatically correct stripes where inconsistencies are

found. BGI is a consistency check that automatically runs on all redundant arrays. Depending on

workload, Dell recommends that consistency checks should be run manually on the virtual disks at

least once every month to help ensure data integrity. Consistency checks and Background Read

Patrol are complementary and both should be used.

See section 5 for details.

Enable Hot Spares

Hot spare functionality provides extra security, availability and redundancy by automatically

replacing a failed disk in a RAID group and allowing the rebuild of the degraded array to begin

immediately. Dell PERC controllers support Hot Spare functionality and it is recommended

whenever possible.

See section 5 for details.

Document your configuration and keep the documentation current

Documenting your configuration facilitates faster and easier recovery should a failure occur. Make

sure to include RAID levels, physical disks included in your virtual disks, firmware and driver

versions and usage of hot spares in your documentation.

Perform periodic physical inspection of your connections and cabling

Damaged cables and loose connections may cause functional issues with your storage solution.

Dell recommends a physical equipment audit two times a year or anytime after re-cabling or re-

deploying your storage hardware.

3. Dell's SAS Product Offering

The PowerVault MD1000 is a feature-optimized storage expansion enclosure which utilizes the

latest industry standard storage interconnect technology, Serial Attached SCSI (SAS). This 3U

enclosure supports between 2 and 15 physical SAS drives. Along with Dell's host-based RAID

controller, PERC 5/E, the PowerVault MD1000 storage enclosure introduces new levels of

performance, capacity, and scalability. Major features of the PowerVault MD1000 and PERC 5/E

solution include:

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