- Việc cấu hình Multi-path cho FC card trên server giúp việc truy cập data trên server sẽ an toàn hơn trong trường hợp một trong 2 đường kết nối từ FC card trên server bị disconnect.
- Cấu hình multi-path cho FC card bằng lệnh sau:
# stmsboot -e
WARNING: stmsboot operates on each supported multipath-capable controller detected in a host. In your system, these controllers are
/pci@7c0/pci@0/pci@1/pci@0,2/SUNW,emlxs@1/fp@0,0
/pci@7c0/pci@0/pci@1/pci@0,2/SUNW,emlxs@2/fp@0,0
/pci@780/pci@0/pci@9/scsi@0
If you do NOT wish to operate on these controllers, please quit stmsboot and re-invoke with -D { fp | mpt | mpt_sas} to specify which controllers you wish to modify your multipathing configuration for.
Do you wish to continue? [y/n] (default: y)
- Việc cấu hình này cần reboot lại server để tính năng Multi-path được apply.
- Kiểm tra cấu hình Multi-path:
# luxadm probe
No Network Array enclosures found in /dev/es
Found Fibre Channel device(s):
Node WWN:200400a0b84700ce Device Type:Disk device
Logical Path:/dev/rdsk/c3t201400A0B84700CEd31s2
Node WWN:200400a0b84700ce Device Type:Disk device
Logical Path:/dev/rdsk/c4t600A0B8000330D0A00001A964ED581DDd0s2
#
#
# luxadm display
/dev/rdsk/c4t600A0B8000330D0A00001A964ED581DDd0s2
DEVICE PROPERTIES for disk: /dev/rdsk/c4t600A0B8000330D0A00001A964ED581DDd0s2
Vendor: STK
Product ID: FLEXLINE 380
Revision: 0660
Serial Num: SP74542576
Unformatted capacity: 512000.000 MBytes
Write Cache: Enabled
Read Cache: Enabled
Minimum prefetch: 0x3
Maximum prefetch: 0x3
Device Type: Disk device
Path(s):
/dev/rdsk/c4t600A0B8000330D0A00001A964ED581DDd0s2
/devices/scsi_vhci/ssd@g600a0b8000330d0a00001a964ed581dd:c,raw
Controller /devices/pci@7c0/pci@0/pci@1/pci@0,2/SUNW,emlxs@2/fp@0,0
Device Address 201400a0b84700ce,0
Host controller port WWN 10000000c9c25d7d
Class secondary
State STANDBY
Controller /devices/pci@7c0/pci@0/pci@1/pci@0,2/SUNW,emlxs@1/fp@0,0
Device Address 201500a0b84700ce,0
Host controller port WWN 10000000c9c25de9
Class primary
State ONLINE
#
- Từ kết quả trên, ta dễ dàng nhận thấy rằng volume được control bằng 2 đường FC, với trạng thái “Primary” là “Online” và “secondary” là “Standby”.
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