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    CentOS6.5掛載iSCSI存儲詳細(xì)教程

    CentOS6.5掛載iSCSI存儲詳細(xì)教程

    1.客戶端安裝iscsi的相關(guān)安裝包,并啟動

    使用yum方式安裝必須能夠訪問外網(wǎng)。

    [root@localhost~]#yum install binutils iscsi-initiator-utils kmod-xfs xfsprogs -y

    [root@localhost~]#service iscsi start

    [root@localhost~]#chkconfig iscsi on

    [root@localhost~]# chkconfig iscsid on

    其中kmod-xfs xfsprogs為xfs文件系統(tǒng)的組件。

    2. 發(fā)現(xiàn)target

    [root@localhost~]# iscsiadm -m discovery -t sendtargets -p 1.1.1.1

    1.1.1.1:3260,0iqn.2001-06.cn.com.toyou:isum420g5-000ce0cb0:dev0

    3.配置initiatiorname(可選這是更改服務(wù)器本身的iqn號,存儲映射LUN的時候指定的主機(jī),如果映射的時候主機(jī)是全部,這個步驟不需要)

    將initiatorname.iscsi 里添加target的名稱

    [root@localhost~]#vi /etc/iscsi/initiatorname.iscsi

    InitiatorName=iqn.sphy.com.toyou:isum420g5-000ce0cb0:dev0

    ?

    4.登陸target

    [root@localhost~]#iscsiadm -m node -T iqn.2001-06.cn.com.toyou:isum420g5-000ce0cb0:dev0 ?-p 1.1.1.1 –login

    Logging in to [iface:default, target: iqn.2001-06.cn.com.toyou:isum420g5-000ce0cb0:dev0, portal:1.1.1.1,3260] (multiple)

    Login to [iface: default,target: iqn.2001-06.cn.com.toyou:isum420g5-000ce0cb0:dev0, portal:1.1.1.1,3260] successful.

    5.查看存儲是否掛載上

    [root@localhost~]# fdisk -l

    Disk /dev/sda:1999.0 GB, 1998998994944 bytes

    255 heads, 63sectors/track, 243031 cylinders

    Units = cylindersof 16065 * 512 = 8225280 bytes

    Sector size(logical/physical): 512 bytes / 4096 bytes

    I/O size(minimum/optimal): 4096 bytes / 4096 bytes

    Disk identifier:0x000bb04e

    ?? Device Boot????? Start???????? End????? Blocks??Id? System

    /dev/sda1?? *??????????1????????? 26????? 204800??83? Linux

    Partition 1 doesnot end on cylinder boundary.

    /dev/sda2????????????? 26??????? 2066???16384000?? 82? Linux swap / Solaris

    /dev/sda3??????????? 2066????? 243032?1935557632?? 83? Linux

    Disk /dev/sdb:16002.0 GB, 16001974403072 bytes(此處為掛載的硬盤)

    255 heads, 63sectors/track, 1945462 cylinders

    Units = cylindersof 16065 * 512 = 8225280 bytes

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

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

    Disk identifier:0x00000000

    6.用parted進(jìn)行分區(qū)

    [root@localhost~]# parted? /dev/sdb

    GNU Parted 2.1

    使用 /dev/sdb

    Welcome to GNUParted! Type 'help' to view a list of commands.?????????????????????????????????????????????????

    (parted) mklabelgpt(磁盤容量大于2T要用gpt分區(qū))

    (parted)mkpart? primary 0% 100%?????????????????????????????????????????

    (parted) print

    Model: TOYOU iSUM420G5(scsi)

    Disk /dev/sdb: 16.0TB

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

    Partition Table: gpt

    Number? Start??End???? Size??? File system?Name???? 標(biāo)志

    ?1?????1049kB? 16.0TB? 16.0TB?????????????? primary

    (parted) quit????????????????????????????????????????????????????????????

    信息: You may need toupdate /etc/fstab.?????

    注:fdisk支持小于2TB的磁盤,大于2TB的磁盤需要用parted

    7.格式化分區(qū)

    [root@localhost~]#mkfs.ext4 -T largefile /dev/sdb1

    注:-T largefile對格式化大文件速度要快很多

    查看磁盤的uuid

    [root@localhost~]#blkid /dev/sdb1

    /dev/sdb1:UUID="3fa56f3f-e905-42e5-94cf-e39c49dffc2e" TYPE="ext4"

    8.掛載硬盤(注意:掛載分區(qū)到錄像資源/usr/iactive/rec_resource下會刪除原來的存儲的錄像數(shù)據(jù))

    [root@localhost~]#mount? -t ext4 /dev/sdb1 ?/usr/iactive/rec_resource??

    9.開機(jī)自動掛載

    先在/etc/rc.local進(jìn)行登陸

    [root@localhost~]#vi /etc/rc.lcoal

    iscsiadm -m node-T iqn.2001-06.cn.com.toyou:isum420g5-000ce0cb0:dev0 ?-p 1.1.1.1 –login

    [root@localhost~]#vi ?/etc/fstab

    UUID=3fa56f3f-e905-42e5-94cf-e39c49dffc2e? /usr/iactive/rec_resource? ext4?defaults? 0? 0

    修改完要用mount –a命令檢查fstab文件是否有錯誤。(fstab文件有錯誤會導(dǎo)致系統(tǒng)無法啟動)

    注:default后面的一定要注意,第一個0為是否支持dump(檢查一個文件系統(tǒng)應(yīng)該以多快頻率轉(zhuǎn)儲,不需要則為0),第二個0問支持fsck,這個在啟動后會fsck /dev/sdb1(檢查掛載的分區(qū)文件,0不檢查)。

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