IX3000产品在Solaris客户端的特殊配置

IX3000产品在Solaris客户端的特殊配置

 

一、 组网需求：

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二、 组网图：

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三、 配置步骤：

 

对于Solaris系统，最常遇到的问题就是创建分区后的容量和实际容量不一致。对于挂给solaris系统的卷，一定要用format命令检查显示的大小是否和实际的SAN资源的大小一致。如果不一致，需要用dd命令对开始的一段区间清0，直到大小一致。

用format命令检查SAN资源大小操作如下：

root@solaris1 # format

Searching for disks...done

 

 

AVAILABLE DISK SELECTIONS:

       0. c1t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>

          /pci@1c,600000/scsi@2/sd@0,0

       1. c9t36d0 <H3C-H3C ISCSI DISK-v1.0-488.28GB>

          /iscsi/disk@***.***.h3c-.ix3080-125.sunv240-123-00000,0

Specify disk (enter its number): 1

selecting c9t36d0

[disk formatted]

 

 

FORMAT MENU:

        disk       - select a disk

        type       - select (define) a disk type

        partition  - select (define) a partition table

        current    - describe the current disk

        format     - format and analyze the disk

        repair     - repair a defective sector

        label      - write label to the disk

        analyze    - surface analysis

        defect     - defect list management

        backup     - search for backup labels

        verify     - read and display labels

        inquiry    - show vendor, product and revision

        volname    - set 8-character volume name

        !<cmd>     - execute <cmd>, then return

        quit

format> p

 

 

PARTITION MENU:

        0      - change `0' partition

        1      - change `1' partition

        2      - change `2' partition

        3      - change `3' partition

        4      - change `4' partition

        5      - change `5' partition

        6      - change `6' partition

        select - select a predefined table

        modify - modify a predefined partition table

        name   - name the current table

        print  - display the current table

        label  - write partition map and label to the disk

        !<cmd> - execute <cmd>, then return

        quit

partition> p

Current partition table (original):

Total disk sectors available: 2457583582 + 16384 (reserved sectors)

 

Part      Tag    Flag     First Sector          Size          Last Sector

  0       root    wm                34       128.00MB           262177

  1       swap    wu            262178       128.00MB           524321

  2 unassigned    wm                 0            0                0

  3 unassigned    wm                 0            0                0

  4 unassigned    wm                 0            0                0

  5 unassigned    wm                 0            0                0

  6        usr    wm            524322         1.14TB           2457583581

  8   reserved    wm        2457583582         8.00MB           2457599965

 

partition>

设备c9t36d0实际容量只有500G不到，但format显示分区却有1.14TB。此问题通常是由于在存储（IX3000）的一个RAID上创建过1.14TB左右的SAN资源并分配给了Solaris，被删除后又在同一RAID上创建一个更小的SAN资源分配给Solaris，由于卷的头部信息仍然保留了旧的分区信息，从而导致这个现象。解决这个问题需要清掉头部信息后再重新format。

root@solaris1 # dd if=/dev/zero of=/dev/rdsk/c9t36d0 bs=1024k count=2048

2048+0 records in

2048+0 records out

root@solaris1 # format

Searching for disks...done

 

c9t36d0: configured with capacity of 488.28GB

 

 

AVAILABLE DISK SELECTIONS:

       0. c1t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>

          /pci@1c,600000/scsi@2/sd@0,0

       1. c9t36d0 <H3C-H3C ISCSI DISK-v1.0-488.28GB>

          /iscsi/disk@***.***.h3c-.ix3080-125.sunv240-123-00000,0

Specify disk (enter its number): 1

selecting c9t36d0

[disk formatted]

Disk not labeled.  Label it now? yes

 

 

FORMAT MENU:

        disk       - select a disk

        type       - select (define) a disk type

        partition  - select (define) a partition table

        current    - describe the current disk

        format     - format and analyze the disk

        repair     - repair a defective sector

        label      - write label to the disk

        analyze    - surface analysis

        defect     - defect list management

        backup     - search for backup labels

        verify     - read and display labels

        inquiry    - show vendor, product and revision

        volname    - set 8-character volume name

        !<cmd>     - execute <cmd>, then return

        quit

format> p

 

 

PARTITION MENU:

        0      - change `0' partition

        1      - change `1' partition

        2      - change `2' partition

        3      - change `3' partition

        4      - change `4' partition

        5      - change `5' partition

                                                                                                                                                  6      - change `6' partition

        select - select a predefined table

        modify - modify a predefined partition table

        name   - name the current table

        print  - display the current table

        label  - write partition map and label to the disk

        !<cmd> - execute <cmd>, then return

        quit

partition> p

Current partition table (original):

Total disk sectors available: 1023983582 + 16384 (reserved sectors)

 

Part      Tag    Flag     First Sector          Size          Last Sector

  0       root    wm                34       128.00MB           262177

  1       swap    wu            262178       128.00MB           524321

  2 unassigned    wu                 0            0                0

  3 unassigned    wm                 0            0                0

  4 unassigned    wm                 0            0                0

  5 unassigned    wm                 0            0                0

  6        usr    wm            524322       488.02GB           1023983581

  8   reserved    wm        1023983582         8.00MB           1023999965

使用dd命令清除头部信息后，再用format命令查看已是正常的488.02GB。

四、 配置关键点：

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