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Galaxy Web GUI User Reference Manual

2-10 Logout

2.4. Logout

To end a management session, you can either close the browser or use the

Logout button on the navigation tree. If you use the logout button, the

management session will return to the User Login screen.

2.5. Background Information

Redundant Arrays of Independent Disks (RAID) is a storage technology used

to improve the processing capability of storage systems. This technology is

designed to provide reliability (i.e., “fault tolerance”) in disk array systems and

to take advantage of the performance gains multiple disks can offer.

RAID comes with a redundancy feature that ensures fault-tolerant,

uninterrupted disk storage operations. In the event of a disk failure, disk

access will still continue normally with the failure transparent to the host

system.

RAID has several levels and multi-level configurations including RAID 10, 30,

50 and 60. RAID levels 1, 3 and 5 are the most commonly used levels; while

the highest fault-tolerance, RAID level 6 are also available. Appendix C,

RAID Levels, gives information about these levels and the benefits of each.

Galaxy disk array controllers support hot-swapping so that a failed drive can

be replaced while the disk array system continues to function. Spares can

also be assigned so that, as soon as a drive fails, the spare is automatically

configured into the array and reconstruction will commence.

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Rorke Data The Galaxy 65 Especificaciones Pagina 32