Term
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Definition
| A Fibre Channel topology that consists of up to 127 devices, connected in a loop, similar to that of a token ring network. The loop can be physical, with each device connected to the next device, or virtual with each device connected to a hub that implements the loop. |
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Term
| ATA (Advance Technology Attachment) |
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Definition
| A disk interface that uses parallel communications to connect multiple hard disk drives and other devices to a computer. |
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Term
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Definition
| The default disk type in Windows Server 2008. A basic disk supports up to four partitions, typically three primary and one extended, with logical drives to organize data. |
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Term
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Definition
| In storage area networking, a type of storage in which a computer accesses the stored data one block at a time. |
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Term
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Definition
| Hard disk drives and other storage media connected to a computer using one of the standard disk interface, as opposed to network-connected storage. |
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Term
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Definition
| A fault tolerance mechanism in which the computer stores duplicate data on two seperate disks, each on a seperate host adapter, so that the data remains available if one disk fails. |
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Term
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Definition
| A fault tolerance mechanism in which the computer stores duplicate data on two seperate disks so that the data remains available if a disk fails. |
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Term
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Definition
| A Windows Server 2008 command line program that you can use to perform disk management tasks. |
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Term
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Definition
| The alternative to the basic disk type in Windows Server 2008. Dynamic disks can have an unlimited number of volumes using variu=ous configurations. The process of converting a basic disk to a dynamic disk creates a single partition that occupies the entire disk. You can create an unlimited number of volumes of the space in that partition. |
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Term
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Definition
| Hard disk drives and other storage media connected to a computer using a network medium, such a Ethernet or Fibre Channel. |
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Term
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Definition
| A High-speed serial networking technology that was originally designed for use with supercomputers, but is now associated primarily with storage area networking. |
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Term
| Fibre Channel Protocol (FCP) |
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Definition
| The protocol that Fibre Channel storage area networks use to transmit SCSI traffic between devices. |
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Term
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Definition
| In storage area networking, a type of storage in which a computer accesses the stored data one file at a time. |
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Term
| Internet Storage Name Service (iSNS) |
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Definition
| In storage area networking, a software component that registers the presence of iSCSI initiators and targets on a SAN and responds to queries from iSNS clients. |
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Term
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Definition
| In storage area networking, a hardware or software device running on a computer that accesses the storage devices on the SAN. |
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Term
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Definition
| In storage area networking, a component integrated into a drive array or computer that receives SCSI command from the initiator and passes the to a storage device. |
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Term
| JBOD (Just a Bunch of Disks) |
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Definition
| A colloquial term for a drive array that is not configured to use RAID or any other type of special fault tolerance mechanism. |
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Term
| logical unit number (LUN) |
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Definition
| An indentifier assigned to a specific component within a SCSI device, such as an individual disk drive in an array, which enables the SCSI host adapter to send commands to that component. |
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Term
| Network Attached Storage (NAS) |
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Definition
| A dedicated file server device, containing disk drives, that connects to a network and provides clients with direct, file-based access to storage resources. Inlike a storage area network, NAS devices include a rudimentary operating system and a file system implementation. |
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Term
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Definition
| The method that Windows operating systems use to organize partitions on a disk. Two hard disk partition styles can be use in Windows Server 2008: master boot record (MRB) and GUID partition table (GTP). |
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Term
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Definition
| A newer version of the ATA disk interface that uses serial instead of parallel communications, improves transmission speeds, and provides the ability to queue commands at the drive. |
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Term
| Small Computer System Interface (SCSI) |
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Definition
| A storage interface that enables computers to transfer data to multiple storage devices connected to a bus. |
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Term
| Storage Area Network (SAN) |
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Definition
| A dedicated, high-speed network that connects block-based storage devices to servers. Unlike NAS devices, SANs do not provide clients with access to the storage resources. |
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Term
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Definition
| A Fibre Channel topology that consists of up to 16,777,216(224)devices, each of which is connected to a Fibre Channel switch. |
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Term
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Definition
| In storage area networking, a software component that enables you to use the Storage Manager for SANs snap-in to manage LUNs on an external storage device. |
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