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Chapter 8

Setting Up XenServer

8.1

Setting Up the Fibre Channel Cards

Perform the following driver parameter settings for each model of ETERNUS DX/AF that is to be connec-

ted.

Driver parameter

lpfc_lun-queue-depth

lpfc_topology

lpfc_link-speed

lpfc_max-luns

*1: Recommended value = 1024 ¸ (number of Fibre Channel ports that are connected to a single CA

port) ¸ number of LUNs

(Round the result down)

Use the value of "8" if the actual result is lower. Use the maximum value if the actual result ex-

•

ceeds the maximum value for the driver.

To achieve maximum system performance, this value can be changed according to the server

•

load and the peak operating times.

The number of simultaneous command executions per CA port for the ETERNUS DX/AF is limited

•

to 1024. This value is used by multiple servers that share the CA port. A maximum of 1024 com-

mands can be executed per CA port.

*2: Use the following "lpfc_link-speed" values.

Fibre

Channel

card

transfer

rate

32Gbit/s

16Gbit/s

8Gbit/s

4Gbit/s

•

After the driver parameter settings are complete for XenServer 7.0, create an initial RAM disk.

Create an initial RAM disk image file to match the kernel being used. Refer to the Emulex Fibre

Channel card manual for details on the creation method.

•

Creating an initial RAM disk is not required for XenServer 7.1 and later.

Shut down the server.

After the driver parameter settings are complete, shut down the XenServer host, and then connect the

ETERNUS DX/AF to the XenServer host with cables.

FUJITSU Storage ETERNUS DX, ETERNUS AF Configuration Guide -Server Connection- (Fibre Channel) for Citrix

ETERNUS DX/AF

Arbitrary (*1)

(Up to 1024 for each FC port of the ETERNUS DX/AF)

For direct connections: 4

•

For switch connections: 2

When a direct connection is used and the LinkSpeed is 16Gbit/s or more, select "2".

(*2)

512

Switch connection

Fibre Channel switch transfer rate

32Gbit/s

16Gbit/s

8Gbit/s

–

Direct connection

CA transfer rate

4Gbit/s

2Gbit/s

32Gbit/s

–

16Gbit/s

8Gbit/s

4Gbit/s

–

XenServer

P3AM-4572-19ENZ0