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1.1 Á¬½ÓISCSI

²Ù×÷ϵͳ£º÷è÷ëlinux£¨2.6.18-1.std£©

Iscsi°ü£º  iscsi-initiator-utils-6.2.0.742-0.5.el5.i386.rpm£¨Open-iSCSÌṩhttp://www.open-iscsi.org/£©

×¢Ò⣺ÒÔϲÙ×÷½öÕë¶ÔÒÔÉϰ汾Äں˺Íiscsi°ü

      ²¢ÇÒ½ö±£Ö¤¿ÉÓ㬲»±£Ö¤×îÓÅ¡£

www.ixdba.net


1.1.1 °²×°rpm°ü

½«iscsi°ücpµ½±¾µØÅÌ£¬²¢ÔڸðüËùÔÚµÄĿ¼ÏÂÔËÐÐÃüÁî

[root@linux ~]# rpm –ivh iscsi-initiator-utils-6.2.0.742-0.5.el5.i386.rpm

ÔËÐдËÃüÁîºó£¬»áÉú³ÉÒ»¸öĿ¼/etc/iscsi,¸ÃĿ¼ÏÂÓÐÁ½¸öÎļþ£º

Initiatorname.iscsiºÍiscsid.conf

1.1.2 Æô¶¯ISCSI·þÎñ

°²×°Íêiscsi·þÎñĬÈÏÊǹرյģ¬ÐèÒªÊÖ¹¤Æô¶¯

[root@linux ~]# cd /etc/init.d

[root@linux ~]# ./iscsi start

1.1.3 ËÑѰÅÌÕó

ÔËÐÐÒÔÏÂÃüÁîËÑѰtarget£¬¼´Ä¿±ê¶Ë£º7612i´æ´¢

[root@linux ~]#iscsiadm --mode discovery --type sendtargets --portal 192.168.1.221

ÒÔÉÏIP¼´ÊÇ7612iµÄiscsi¿ÚµÄIP,ÆäËü¹Ì¶¨¡£

1.1.4 ÏÔʾÅÌÕó

ÏÔʾ´æ´¢¶Ëtarget name

[root@linux ~]# iscsiadm --mode node

ÏÔʾ½á¹ûÓëÔÚ7612i´®¿Ú iscsi managementiscsi nodeÃû×ÖÏàͬ

1.1.5 µÇ½ÅÌÕó

target怫

[root@linux ~]#iscsiadm --mode node --targetname targetname --portal 192.168.1.221:3260 --login

    ÆäÖÐtargetname¼´ÊDz½Öè4Öнá¹û¡££¨×¢£ººá¸ËÊÇÖиܣ©

£¨×¢£º3£¬4£¬5ʵʩÖÐÊÇÔÚ/etc/iscsiÏÂÔËÐУ¬ÊÇ·ñ¿ÉÒÔÔÚ±ðµÄ·¾¶Ö´ÐУ¬¿É×ÔÐвâÊÔ¡£ÒÔÉÏ3¸öÃüÁî¸ñʽÊÇ´Óman iscsiadm²é³ö£©

1.1.6 ÉèÖÃ×Ô¶¯Æô¶¯ÅÌÕó·þÎñ

¾­¹ýÒÔÉϼ¸²½£¬fdisk –l¾Í¿ÉÒÔ¿´µ½Ëù¹Ò½Ó·ÖÇøÁË£¬ÎªÈ·±£ÖØÆôºóÒ²ÄÜ¿´µ½£¬ÔÙÐÞ¸ÄÒ»ÏÂ/etc/iscsi/iscsid.conf,½«µÚ5²½µÄÃüÁîiscsiadm --mode node --targetname targetname --portal 192.168.1.221:3260 --login

[root@linux ~]# vi /etc/iscsi/iscsid.conf

iscsiadm --mode node --targetname targetname --portal 192.168.1.221:3260 –login

??е??

*****************

# Startup settings

#*****************   æ¼´É¡

???????λ???.È»ºóÖØÆôµçÄÔºóÖ±½Ófdisk –l ÒÀÈ»¿ÉÒÔ¿´µ½Ëù¹Ò½ÓµÄ·ÖÇø¡£ÖÁ´ËiscsiËùÓвÙ×÷Íê³É,µ«¹ÒÔØµÄ·ÖÇø²»ÊÇlinuxËùʶ±ð£¬±ØÐëʹÓÃFDISK½øÐдÅÅÌ·ÖÇø¡£

1.2 ÉèÖ÷ÖÇø

1.2.1 ʹÓÃfdiskÃüÁî½øÐдÅÅÌ·ÖÇø

fdiskÊǸ÷ÖÖLinux·¢Ðа汾ÖÐ×î³£ÓõķÖÇø¹¤¾ß£¬ÊDZ»¶¨ÒåΪExpert¼¶±ðµÄ·ÖÇø¹¤¾ß¡£ÎÒÃÇ¿ÉÒÔͨ¹ýfdiskÀ´·ÖÇøÊ¹ÓÃiscsiÉ豸¡£Ëü»¹°üÀ¨Ò»¸ö¶þ¼¶Ñ¡µ¥£¬Ê×ÏÈÊäÈëÃüÁȻºó³öÏÖÎÊ´ðʽ½çÃæ£¬Óû§Í¨¹ýÔÚÕâ¸ö½çÃæÖÐÊäÈëÃüÁî²ÎÊýÀ´²Ù×÷fdisk¡£

££ fdisk /dev/hdb

ÔËÐкó³öÏÖfdiakµÄÃüÁîÌáʾ·û£º

Command (m for help):

ʹÓÃnÃüÁî´´½¨Ò»¸ö·ÖÇø£¬»á³öÏÖÑ¡ÔñÖ÷·ÖÇø£¨p primary partition£©»¹ÊÇÀ©Õ¹·ÖÇø£¨l logical£©µÄÌáʾ£¬Í¨³£Ñ¡ÓÃÖ÷·ÖÇø¡£È»ºó°´ÕÕÌáʾÊäÈë·ÖÇøºÅ£¨Partion number(1£­4)£º£©¡¢Ð·ÖÇøÆðʼµÄ´ÅÅÌ¿éÊý£¨First Cylinder£©ºÍ·ÖÇøµÄ´óС£¬¿ÉÒÔÊÇÒÔMBΪµ¥Î»µÄÊý×Ö£¨Last cylindet or +siza or +sizeM or +sizeK£º£©¡£ÀýÈ磺

[root@linux ~]#fdisk /dev/sdb

²é¿´·ÖÇø£¬Èç¹ûÊǵÚÒ»´Î²Ù×÷ʱ£¬ÏÔʾΪÎÞ¡£

Command (m for help):p

 

Disk /dev/sdb:255 heads, 63 sectors, 4427 cylinders

Units = cylinders of 16065 * 512 bytes

 

Device Boot    Start       End    Blocks   Id  System

½¨Á¢·ÖÇø

Command (m for help):n

Command action

e   extended

p   primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-4427, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-4427, default 4427):

Using default value 4427

±£´æ·ÖÇøÐÅÏ¢

Command (m for help)£ºw

The partition table has been altered!

 

Calling ioctl() to re-read partition table.

 

WARNING:If you have created or modified any DOS 6.x

partitions, please see the fdisk manual page for additional

information.

Syncing disks.

1.2.2 ÏÖÔÚÑé֤зÖÇø£º

[root@linux ~]# fdisk /dev/sdb

 

The number of cylinders for this disk is set to 4427.

There is nothing wrong with that, but this is larger than 1024,

and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs

(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help):p

 

Disk /dev/sdb:255 heads, 63 sectors, 4427 cylinders

Units = cylinders of 16065 * 512 bytes

 

Device Boot    Start       End    Blocks   Id  System

/dev/sdb1             1      4427  35559846   83  Linux

 

Command (m for help):q

1.2.3 ¸ñʽ»¯·ÖÇø

[root@localhost ~]# mkfs -t ext3 /dev/sdb1

mke2fs 1.39 (29-May-2006)

Filesystem label=OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

214761472 inodes, 429495759 blocks

21474787 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=0

13108 block groups

32768 blocks per group, 32768 fragments per group

16384 inodes per group

Superblock backups stored on blocks:

            32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,

            4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,

            102400000, 214990848

 

Writing inode tables: done                           

Creating journal (32768 blocks): done

Writing superblocks and filesystem accounting information: done

 

This filesystem will be automatically checked every 31 mounts or

180 days, whichever comes first.  Use tune2fs -c or -i to override.

 

1.2.4 É趨¼ÓÔØµã£º

Îļþϵͳ±ØÐëÓÐÒ»¸ö¹ÒÔØµã£¬ËüÖ»ÊÇÒ»¸ö¿ÕµÄĿ¼£¬ÐÂÎļþϵͳÔÚÕâÀïÓëϵͳĿ¼Ê÷ÏàÁ¬¡£¾­¹ýÒÔÉϵIJÙ×÷£¬ÎÒµÄ Linux·þÎñÆ÷ÒѾ­Á¬½Óµ½ iSCSI ´¢´æÉ豸£¬ ²¢ÇÒÈçͬLinux ±¾»úÉÏÃæµÄÒ»¸ö SCSI Ó²ÅÌÒ»Ñù¡£ ʹÓõķ½Ê½¼¸ºõһģһÑù¡£

¼ÙÉèiSCSI Ö÷»ú¹ÒÔØµ½ /cluster/raid Ŀ¼Ï£º

[root@linux ~]# mkdir /cluster/raid

[root@linux ~]# mount  /dev/sda1 /cluster/raid

[root@linux ~]# df

Filesystem       1K-blocks          Used    Available  Use%  Mounted on

/dev/hda1         10080488       2950408     6618012   31%   /

tmpfs              5036316         81172     4699312   0%    /dev/shm

/dev/sda1       1914788196      27040372  1790482212   2%    /cluster/raid

1.2.5 É趨×Ô¶¯¹ÒÔØ£º

ÔÚ»úÆ÷ÖØÐÂÆô¶¯ºó×Ô¶¯¼ÓÔØ·ÖÇø£¬Äã±ØÐëÔÚ/etc/fstabÖмÓÈëÏàÓ¦·ÖÇø£¬µ«·ÖÇøÀàÐͱØÐëÊÐ"_netdev".ÀýÈç¼ÓÔØµÄ·ÖÇøsdb1:

 

[root@linux ~]# vi /etc/fstab

/dev/sdb1   /cluster/raid   ext3    ­_netdev     0   0

/dev/sdc1   /data/sdc1      ext3    _netdev     0   0

/dev/sdd1   /data/sdd1      ext3    _netdev     0   0

1.2.6 ²é¿´¹ÒÔØ·ÖÇø£º

[root@localhost ~]# df -h

Îļþϵͳ              ÈÝÁ¿    ÒÑÓà     ¿ÉÓà     ÒÑÓ㥠     ¹ÒÔØµã

/dev/sda1              64G    5.6G      55G     10%         /

tmpfs                 1.7G       0     1.7G      0%         /dev/shm

/dev/sdb1             1.6T    197M     1.5T      1%         /data/sdb1

/dev/sdc1             1.6T    197M     1.5T      1%         /data/sdc1

ÔĶÁ¸ü¶àÄÚÈÝ£º1 ¡¤ 2 ¡¤ ÏÂÒ»Ò³>>


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