钱枫工资:AIX中如何确定磁带库设备和操作系统设备文件的对应关系

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在实际中配置备份软件、命令操作等情况下,我们经常要使用磁带库设备的element号,有时还需要使用相应的设备文件。为此我们通常通过测试观察的方法确定他们的对应关系。在设备过多或条件不允许的情况下如何确定磁带库设备和操作系统设备文件的对应关系?

  我们介绍一种方法:

  1)查看有那些磁带设备:

  p615:/>lsdev -Cc tape

  rmt0 Available 1H-08-01 IBM 3580 Ultrium Tape Drive (FCP)

  rmt1 Available 1H-08-01 IBM 3580 Ultrium Tape Drive (FCP)

  smc0 Available 1H-08-01 IBM 3583 Library Medium Changer (FCP)

  smc1 Available 1H-08-01 IBM 3583 Library Medium Changer (FCP)

  2)查看磁带库中的磁带位置情况:

  p615:/>tapeutil -f /dev/smc0 invent | more

  Reading element status...

  Robot Address 1 /*机械臂*/

  Robot State .................... Normal

  ASC/ASCQ ....................... 0000

  Media Present .................. No

  Source Element Address Valid ... No

  Media Inverted ................. No

  Volume Tag .....................

  Import/Export Station Address 16 /*I/O口*/

  Import/Export State ............ Normal

  ASC/ASCQ ....................... 0000

  Media Present .................. No

  Import Enabled ................. Yes

  Export Enabled ................. Yes

  Robot Access Allowed ........... Yes

  Source Element Address Valid ... No

  Media Inverted ................. No

  Volume Tag .....................

  ……

  Drive Address 256 /*机械臂*/

  Drive State .................... Normal

  ASC/ASCQ ....................... 0000

  Media Present .................. No

  Robot Access Allowed ........... Yes

  Source Element Address Valid ... No

  Media Inverted ................. No

  Same Bus as Medium Changer ..... Yes

  SCSI Bus Address ............... 1

  Logical Unit Number Valid ...... No

  Volume Tag .....................

  ……

  Slot Address 4096 /*槽位*/

  Slot State ..................... Abnormal

  ASC/ASCQ ....................... 8300

  Media Present .................. Yes

  Robot Access Allowed ........... Yes

  Source Element Address ......... 4096

  Media Inverted ................. No

  Volume Tag ...................../*我们知道这里有1合lto1没有条码标签*/

  Slot Address 4097

  Slot State ..................... Normal

  ASC/ASCQ ....................... 0000

  Media Present .................. Yes

  Robot Access Allowed ........... Yes

  Source Element Address ......... 4099

  Media Inverted ................. No

  Volume Tag ..................... CLNU54L1/*清洗带*/

  Slot Address 4098

  Slot State ..................... Normal

  ASC/ASCQ ....................... 0000

  Media Present .................. Yes

  Robot Access Allowed ........... Yes

  Source Element Address ......... 4096

  Media Inverted ................. No

  Volume Tag ..................... A00004L2

  ……

  3)查看rmtx和element号之间的对应关系:

  3、1)物理位置和sn的关系

  3583的控制面板上status/drivers可以看到驱动器的物理位置和sn;wwn:

  设备 sn wwn

  ------ ------ ------

  lib 1319585

  drv1 1110119982 500308C1426A1001

  drv2 1110140955 500308C1426A1004

  3、2)物理位置和element的关系

  每种带库的都有自己的对应关系,请查阅手册(setup and operation guide):

  

  3、3)sn和element关系:

  综合1,2可知

  drvx sn element

  ---- ------ ------

  drv1 1110119982 256

  drv2 1110140955 257

  3、4)rmtx和sn的关系:

  使用命令

  p615:/>lscfg -vps -l rmt0

  rmt0 U0.1-P1-I5/Q1-W500308C1426A1001-L0

  IBM 3580 Ultrium Tape Drive (FCP)

  Manufacturer................IBM

  Machine Type and Model......ULT3580-TD2

  Serial Number...............1110119982

  Device Specific.(FW)........38D0

  p615:/>lscfg -vps -l rmt1

  rmt1 U0.1-P1-I5/Q1-W500308C1426A1004-L0

  IBM 3580 Ultrium Tape Drive (FCP)

  Manufacturer................IBM

  Machine Type and Model......ULT3580-TD2

  Serial Number...............1110140955

  Device Specific.(FW)........38D0

  3、6)rmtx和element的关系:

  综合3,4可知

  rmtx drvx sn element

  ---- ---- ------ ------

  rmt0 drv1 1110119982 256

  rmt1 drv2 1110140955 257

  另外,如果是光纤设备,wwn也是一个识别的方法。