我有一台带有多个磁盘和分区的服务器。对于特定磁盘,我想知道它是本地磁盘还是 SAN 磁盘。
我运行了一些命令:
[root@server]# ls -l /sys/block/*/device
lrwxrwxrwx 1 root root 0 Jul 22 12:15 /sys/block/hda/device -> ../../devices/pci0000:00/0000:00:1f.1/ide0/0.0
lrwxrwxrwx 1 root root 0 Jul 22 12:15 /sys/block/sda/device -> ../../devices/pci0000:00/0000:00:03.0/0000:01:00.0/0000:02:0e.0/host0/target0:2:0/0:2:0:0
lrwxrwxrwx 1 root root 0 Jul 22 12:15 /sys/block/sdb/device -> ../../devices/pci0000:00/0000:00:03.0/0000:01:00.0/0000:02:0e.0/host0/target0:2:1/0:2:1:0
lrwxrwxrwx 1 root root 0 Jul 22 12:15 /sys/block/sdc/device -> ../../devices/platform/host3/target3:0:0/3:0:0:0
我如何才能确切地知道哪个设备是本地的、哪个设备连接到 SAN?
答案1
您可以采取几种不同的方法。有些方法可能对您的特定设置更好或更坏。请记住,严格来说,光纤通道驱动器并不一定意味着“SAN”或“存储阵列”。它可能只是一个实际的 FC 连接驱动器。
您可以检查驱动器位于哪个 SCSI 主机上,并且如果您知道所有服务器都有(即)QLogic 卡,则可以按此方式进行过滤:
# lsscsi -H; lsscsi -g
[0] qla2xxx
[1] qla2xxx
[2] mptsas
[3] ata_piix
[4] ata_piix
[0:0:0:0] disk IBM 1814 FAStT 0916 /dev/sda /dev/sg0
[0:0:0:1] disk IBM 1814 FAStT 0916 /dev/sdb /dev/sg1
[0:0:0:2] disk IBM 1814 FAStT 0916 /dev/sdd /dev/sg3
[0:0:0:31] disk IBM Universal Xport 0916 - /dev/sg4
[1:0:0:0] disk IBM 1814 FAStT 0916 /dev/sdc /dev/sg2
[1:0:0:1] disk IBM 1814 FAStT 0916 /dev/sde /dev/sg5
[1:0:0:2] disk IBM 1814 FAStT 0916 /dev/sdf /dev/sg6
[1:0:0:31] disk IBM Universal Xport 0916 - /dev/sg7
检查di
相关设备的 VPD 页面以查看其使用的协议。
# sg_vpd -p di /dev/sda
Device Identification VPD page:
Addressed logical unit:
designator type: NAA, code_set: Binary
0x600a0b80002664e2000026c349dda1ee
Target port:
designator type: NAA, code_set: Binary
transport: Fibre Channel (FCP-2)
0x200600a0b8266f7f
designator type: Relative target port, code_set: Binary
transport: Fibre Channel (FCP-2)
Relative target port: 0x1
Target device that contains addressed lu:
designator type: NAA, code_set: Binary
transport: Fibre Channel (FCP-2)
0x200600a0b8266f7e
使用特定存储阵列的路径管理工具检查该设备是否在该阵列上。例如:
# sg_rdac /dev/sda
RDAC Legacy page
Controller serial: 1T63717016
Alternate controller serial: 1T64109650
RDAC mode (redundant processor): alternate controller present; Dual active mode
RDAC mode (alternate processor): alternate controller present; Dual active mode
Quiescence timeout: 75
RDAC option 0x6
LUN Table:
0: a a x x x x x x
1: x x x x x x x x
2: x x x x x x x x
3: x x x x x x x x
相对:
# sg_rdac /dev/sda
invalid field in cdb (perhaps subpages or page control (PC) not supported)
答案2
SAN LUN 不会表现为 IDE 驱动器。