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JBOD, EBOD, SBOD

通常會看到 JBOD, EBOD, SBOD

JBOD, Just a Bunch Of Disks
不具有 RAID 的功能.通常會搭配 HBA 卡來使用,安全點就用 RAID HBA.

EBOD,Extended Bunch of Disks (storage networking)
Storage 的裝置需要額外的硬碟時,會透過 storage 上的 Expander ICs 再去串接 JBOD,就被稱為 EBOD ,通常介面有 SAS 或是 FC.

SBOD,Switched Bunch of Disks (storage networking)
Switched JBOD 通常是指 FC 的 EBOD ,但功能更完善???

Vitesse Semiconductor Corp 對於 SBOD 的說明
Fibre Channel Switch to deploy a high-performance Fibre Channel disk enclosure known as an SBOD � Switched Bunch Of Disks.

The technologies from Vitesse and Vixel will enable point-to-point switched connectivity between the controller and individual disk drives in the storage array, creating an SBOD which dramatically enhances storage system Reliability, Availability.

我想大概的意思是說 SBOD 捨棄傳統 Arbitrary Loop 的方式,改使用 point-to-poin 的聯接方式.

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