Fujitsu Eternus DX600 S3 구성 매뉴얼 - 페이지 25

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Fujitsu Eternus DX600 S3에 대해서도 마찬가지입니다: 수동 서버 연결 구성 (12 페이지), 구성 매뉴얼 (13 페이지), 구성 매뉴얼 (18 페이지), 안전 주의사항 (12 페이지)

페이지 인쇄

1. Hardware

Chapter 8

Setting the Multipaths

8.2

Multipath Configuration using Native Multipath

8.2

Multipath Configuration using Native Multipath

"Native Multipaths" is an OS function available for HP-UX11iv3 onwards.

Native Multipaths can be used to set the I/O load balance policy (load_bal_policy) and enable ALUA

(alua_enabled).

Perform these settings to match the ETERNUS DX model and depending on whether the OS supports ALUA.

8.2.1

Setting the I/O Load Balance Policy (load_bal_policy)

Set the I/O load balance policy to match the ETERNUS DX model being used as shown below. The policy set-

ting is required for all LUNs in the ETERNUS DX.

I/O load balance policy setting vs ETERNUS DX model

•

ETERNUS DX

DX60 S3/DX100 S3/DX200 S3,

DX500 S3/DX600 S3,

DX200F,

DX80 S2/DX90 S2,

DX400/DX400 S2 series,

DX8000/DX8000 S2 series

DX60/DX60 S2, DX80

Example procedure of I/O load balance policy setting

•

Setting the I/O load balance policy to "round_robin"

# scsimgr save_attr -D /dev/rdisk/disk25 -a load_bal_policy=round_robin

Execute this "load_bal_policy" setting command for all LUNs in the ETERNUS DX.

If the I/O load balance policy is "preferred_path", a priority path must be set. Set the path that is used

when the I/O load is balanced as the priority path.

•

Example procedure priority path setting

Specify the hardware path of the "Lunpath" that is to be the priority path.

# scsimgr save_attr -D /dev/rdisk/disk25 -a preferred_path=64000/0x0/0x0.0x0.0x4

000000000000000

Lunpath hardware paths can be checked using the "ioscan -m lun" and "scsimgr lun_map" commands.

FUJITSU Storage ETERNUS DX Configuration Guide -Server Connection- (iSCSI) for HP-UX

I/O load balance policy setting

round_robin

preferred_path

P3AM-3402-14ENZ0