CentOS Mount 20T Array

Mount Storage to the centos server

Yum install–y iscsi-initiator-utils*// installing iSCSI Services

/ETC/INIT.D/ISCSI Start/ start service

Chkconfig iSCSI on; Let the service boot up

1,iscsiadm-mdiscovery-t sendtargets-p 192.168.86.161:3260//

Discover iqn.2012-07.com.ejitec:alias.tgt0000.9cf8555501000020

2,iscsiadm-m node-tiqn.2012-07.com.ejitec:alias.tgt0000.9cf8555501000020-p 192.168.86.161:3260–l// Discover the hard disk , will appear success words, this time fdisk–l will discover the newly added hard disk device;

Iscsiadm-m node-tiqn.2012-07.com.ejitec:alias.tgt0000.9cf8555501000020-p 192.168.86.161:3260--op update-n Node.sta RTUP-V Automatic// boot auto discovery hard drive

3, this time if you go to format hard disk. Fdisk/dev/sdb

this is because the hard disk is 20T , and the hard drive with the Linux format greater than 3T cannot be directly used with fdisk

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PARTED/DEV/SDB/ Default is the first hard drive, note;

Mklab GPT// Create a volume label for new devices

Mkpart primary 0% 50%// split a primary partition

Mkpart Primary 50% 100%// Division second primary partition

Quit

Partprobe(I'm useless)

Vi/etc/fstab new partition to join automatic mount;

Here are some of the previous errors; want to EXT4 format 20T hard drive to send a zone mount, in fact EXT4 the largest only support 16T, so did not hang up;

Mkfs.ext4dev/dev/sdb1

MKFS.EXT4DEV/DEV/SDB1 This time the error is because the Linux default block size is 4096, need to change the size of the block

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Mkfs.ext4–b 8192 DEV/DEV/SDB1

mount error ext4 maximum support 16T, my hard drive is 20T can't hang up so error

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CentOS Mount 20T Array