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分类: LINUX

测试iscsi服务是否正常

[root@FocusBackup ~]# service iscsi restart

停止 iscsi                                               [确定]

[root@FocusBackup ~]# chkconfig iscsi on

[root@FocusBackup ~]# iscsiadm -m discovery -t sendtargets -p 10.30.21.131

正在启动 iscsid                                          [确定]

10.30.21.131:3260,1 iqn.2016-01.com.openfiler:tsn.vmlocalbackup

[root@FocusBackup ~]# iscsiadm -m node -T iqn.2016-01.com.openfiler:tsn.vmlocalbackup -p 10.30.21.10 -l

Logging in to [iface: default, target: iqn.2016-01.com.openfiler:tsn.vmlocalbackup, portal: 10.30.21.131,3260] (multiple)

Login to [iface: default, target: iqn.2016-01.com.openfiler:tsn.vmlocalbackup, portal: 10.30.21.131,3260] successful.

查看硬盘设备

[root@FocusBackup ~]# fdisk -l

 

Disk /dev/sda: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x000a4673

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1          26      204800   83  Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2              26        1332    10485760   82  Linux swap / Solaris

/dev/sda3            1332       26109   199023616   83  Linux

/dev/sda4           26109       39163   104857600    5  Extended

/dev/sda5           26109       39163   104856576   83  Linux

 

Disk /dev/sdb: 2199.0 GB, 2199023254528 bytes

255 heads, 63 sectors/track, 267349 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x000bfa7a

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1               1      267349  2147480811   83  Linux

 

Disk /dev/sdd: 1099.5 GB, 1099511627776 bytes

255 heads, 63 sectors/track, 133674 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

 

Disk /dev/sdd doesn't contain a valid partition table

 

Disk /dev/sdc: 2199.0 GB, 2199023254528 bytes

255 heads, 63 sectors/track, 267349 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x26e7758c

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sdc1               1      267349  2147480811   83  Linux

 

WARNING: GPT (GUID Partition Table) detected on '/dev/sde'! The util fdisk doesn't support GPT. Use GNU Parted.

 

 

Disk /dev/sde: 6597.0 GB, 6596969103360 bytes

255 heads, 63 sectors/track, 802035 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sde1               1      267350  2147483647+  ee  GPT

  

对超过2TB的硬盘进行分区需要使用parted

 

[root@FocusBackup ~]# parted /dev/sde

GNU Parted 2.1

使用 /dev/sde

Welcome to GNU Parted! Type 'help' to view a list of commands.

(parted) mklabel gpt

警告: The existing disk label on /dev/sde will be destroyed and all data on this disk will be lost. Do you want to continue?

/Yes//No? y                                                          

(parted) print                                                           

Model: OPNFILER VIRTUAL-DISK (scsi)

Disk /dev/sde: 6597GB

Sector size (logical/physical): 512B/512B

Partition Table: gpt

 

Number  Start  End  Size  File system  Name  标志

 

(parted) mkpart primary 0KB 6597GB                                       

警告: You requested a partition from 0.00B to 6597GB.                    

The closest location we can manage is 17.4kB to 6597GB.

Is this still acceptable to you?

/Yes//No? y                                                          

警告: The resulting partition is not properly aligned for best performance.

忽略/Ignore/放弃/Cancel? i                                               

(parted) print                                                           

Model: OPNFILER VIRTUAL-DISK (scsi)

Disk /dev/sde: 6597GB

Sector size (logical/physical): 512B/512B

Partition Table: gpt

 

Number  Start   End     Size    File system  Name     标志

 1      17.4kB  6597GB  6597GB               primary

 

(parted) quit                                                            

信息: You may need to update /etc/fstab.                                 


对创建好的大分区进行格式化

[root@FocusBackup ~]# fdisk -l

 

Disk /dev/sda: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x000a4673

 

   Device Boot      Start         End      Blocks   Id  System

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