Dell PowerVault MD1000 SAS Solution Manual

Dell PowerVault MD1000 SAS Solution Manual Manual pdf 9 page image

A REFERENCE GUIDE FOR OPTIMIZING DELL™ MD1000 SAS SOLUTIONS VER A00PAGE 9 5/06/2005For the latest information on support for specific physical disks, see the Dell Storage web site at:http://www.us.dell.com/storage/3rd Party Hardware supportTo help provide the best possible customer experience, Dell supports only hardware purchaseddirect from Dell for the PowerVault MD1000 and PERC 5/E controller. Dell-developed server andstorage solutions include many thousands of person-hours of engineering testing and validation tohelp ensure the highest product quality. For example, physical disks purchased direct from Dellmay include features not generally available to the rest of the industry. As such, Dell supports onlyDell tested and qualified hardware. Hardware purchased direct from Dell carries the full Dellsystem limited warranty1 and helps ensure full compatibility. Materials purchased from 3rd partyvendors for use in Dell systems are not covered under Dell’s limited warranty and may not deliveran acceptable customer experience.Server SupportThe PowerVault MD1000 storage enclosure and PERC 5/E solution are supported on thePowerEdge 1850, 2850, 6800, and 6850 servers.4. PowerVault MD1000 Storage Enclosure DetailsEnclosure ModesThe enclosure can be set to either unified or split mode through the use of a two-position switchlocated on the front panel of the enclosure. The enclosure can be configured into the selectedmode only at power up. Any changes to the mode switch made while the enclosure is powered onwill not take effect until the enclosure is powered off and back on again.Note: Any time you power on the PowerVault MD1000 storage enclosure, ensure the mode switchis set in the desired position. If the position of the switch changes inadvertently, data loss couldoccur as the controller may recognize an inaccurate number of attached physical disks versus theprevious mode. In order to cycle power on your MD1000, all attached servers, must be turned off.Unified TopologyIn unified mode, a single server has access to all fifteen physical disks in the PowerVault MD1000storage enclosure through a single SAS cable. The unified mode can also provide a single serveraccess to a maximum of forty five physical disks by daisy-chaining up to three enclosures from asingle host port. The main advantage of unified mode is that it provides a high degree of physicaldisk scalability.1 For a copy of our guarantees or limited warranties, please write Dell USA L.P., Attn: Warranties, One Dell Way, RoundRock, TX 78682. For more information, visit www.dell.com/warranty.