[教學] 用多個iSCSI Targets + LUNs 創建一個extended datastore 來儲存VMs ?

本帖最後由 KamHung 於 2015-1-9 15:27 編輯

有人嘗試過嗎?是不是真的有用?

Detail quote:
When a LUN is connected to the ESXi hosts, iSCSI will be represented as a single iSCSI queue on the NAS. When the LUN is shared among multiple virtual machine disks, all I/O has to serialize through the iSCSI queue and only one virtual disk's traffic can traverse the queue at any point in time. This leaves all other virtual disks' traffic waiting in line. The LUN and its respective iSCSI queue may become congested and the performance of the VMs may decrease. Therefore, you can create multiple targets with LUNs as an extended datastore to allow more iSCSI queues to deal with VMs access. In this practice, we will use four LUNs as an extended datastore in VMware.



Source:
Use multiple targets with LUNs to create an extended datastore to store the VMs
http://www.qnap.com/i/en/trade_t ... =showone&cid=64