#acl merlyn:read,write All:read
<<TableOfContents()>>

= ISM Day 3 =
== SDDC ==

== EMC ViPR Controller, ECS and ScaleIO ==

== Network Stack Comparison ==
  I. SCSI --> SCSI->Physical
  I. FCIP --> SCSI->FC->FCIP-TCP-IP->Ethernet->FCIP->Physical (远程FC SAN环境容灾场景)
  I. FCoE --> SCSI->FE_>FCoE-Ethernet->FCoE->Physical
  I. FC   --> SCSI->FC->Physical

== FC Protocol Stack ==

== FC Flow Control ==
  I. BB_Credit保证

== NPV ==
  I. NPV交换机跟NPIV交换机连接的那个端口叫NP_port（NPIV交换机端口还是F_port）
  I. 支持NPV的交换机用作直通设备(不需要ID domain，不执行连接结构服务）
  I. 解决了连接结构中的Domain_ID数量激增问题。

== iSCSI Addresses and Name ==
  i. IQN: iSCSI Qualified Name
  i. EUI: Extended Unique Identifier
  i. NAA: Network Address Authority

== Link aggregation ==
  i. 提高吞吐量
  i. 分发流量

== 延伸VLAN(Stretched VLAN) ==
  i. A VLAN that spans multiple sites and enables OSI Layer 2 communication between a group of nodes over an OSI Layer 3 WAN infrastructure, independent of their physical location.

== FCIP ==
=== Merged Fabric ===
E-->FCIP gateway E--> VE--VE --> FCIP gateway E-->Storage SAN-E

== CEE ==
{{{

}}}

  I. PFC: Priority-Based Flow Control( 8 virtual links on a single physical link )
  I. ETS: Enhanced Transmission Selection
  I. CN: Congestion Notification( )
  I. DCBX:

== Measuring Information Availability( 衡量信息可用性 ) ==
  I. Mean Time Between Failure( MTBF )
  I. Mean Time to Repair( MTTR )

== BC ==
=== RPO ===
  * Point-in-time to which systems and data must be recovered after an outage.
  * Amount of data loss that a business can endure
=== RTO ===
  * Time within shich systems and applications must be recovered after an outage
  * Amount of downtime that a business can endure and survice.

== iSCSI ==
  * 在iSCSI存储环境，主机端不需要做网卡绑定，而是通过多路径软件去管理，类似于存储。

== HA-AP VS Vplex http://www.loxoll.com/web/technology.html ==