關(guān)于看槽位的理解：
最近在 tsm 的虛擬帶庫(kù)上建了兩個(gè)庫(kù)，有發(fā)現(xiàn)：
TSM:TSM_SVR1>?
show slots vtl01
ANR2017I Administrator SERVER_CONSOLE issued command: show slots vtl01
PVR slot information for library VTL01.
Library????????? : VTL01?
Product Id?????? : Scalar i500??????
Support module?? : 2

Mount count????? : 0

Drives?????????? : 4?
Slots??????????? : 4?
Changers???????? : 1?
Import/Exports?? : 0

Device?????????? : /dev/tsmscsi/lb0

Drive?? 0, element 2051?
Drive?? 1, element 2052?
Drive?? 2, element 2053?
Drive?? 3, element 2054

Changer 0, element 0

Slot 0, status Allocated, element number 1, barcode not present, barcode value <>, devT=ANY,
mediaT=-1, elemT=ANY
Slot 1, status Allocated, element number 2, barcode not present, barcode value <>, devT=ANY,
mediaT=-1, elemT=ANY
Slot 2, status Allocated, element number 3, barcode not present, barcode value <>, devT=ANY,
mediaT=-1, elemT=ANY
Slot 3, status Full, element number 4, barcode not present, barcode value <>, devT=ANY, mediaT=-1,
elemT=ANY

slot element range 1 - 4

發(fā)現(xiàn)上面slot3 和slot 0,1,2 的狀態(tài)不一樣，就是說(shuō)一共4個(gè)槽位，vtl01 帶庫(kù)就占了3 個(gè)，
再結(jié)合：
看帶庫(kù)中的磁帶：
TSM:TSM_SVR1>?
q libv
ANR2017I Administrator SERVER_CONSOLE issued command: QUERY LIBVOLUME

Library Name??? Volume Name??? Status????????????? Owner???????? Last Use???? Home?????? Device
????????????????????????????????????????????????????????????????????????????? Element??? Type??
------------??? -----------??? ----------------??? ----------??? ---------??? -------??? ------
VTL01?????????? AD0001???????? Private?????????????????????????? Data???????? 1????????????????
VTL01?????????? AD0002???????? Private??????????????????????????????????????? 2????????????????
VTL01?????????? AD0003???????? Private??????????????????????????????????????? 3????????????????
VTL02?????????? AD0004???????? Scratch??????????????????????????????????????? 4???????????????

發(fā)現(xiàn)：vtl01 是占了3 個(gè)， vtl02 是只有一個(gè)：
再看一下 vtl02 的情況：
TSM:TSM_SVR1>?
show slots vtl02
ANR2017I Administrator SERVER_CONSOLE issued command: show slots vtl02
PVR slot information for library VTL02.
Library????????? : VTL02?
Product Id?????? : Scalar i500??????
Support module?? : 2

Mount count????? : 0

Drives?????????? : 4?
Slots??????????? : 4?
Changers???????? : 1?
Import/Exports?? : 0

Device?????????? : /dev/tsmscsi/lb0

Drive?? 0, element 2051?
Drive?? 1, element 2052?
Drive?? 2, element 2053?
Drive?? 3, element 2054

Changer 0, element 0

Slot 0, status Full, element number 1, barcode not present, barcode value <>, devT=ANY, mediaT=-1,
elemT=ANY
Slot 1, status Full, element number 2, barcode not present, barcode value <>, devT=ANY, mediaT=-1,
elemT=ANY
Slot 2, status Full, element number 3, barcode not present, barcode value <>, devT=ANY, mediaT=-1,
elemT=ANY
Slot 3, status Allocated, element number 4, barcode not present, barcode value <>, devT=ANY,
mediaT=-1, elemT=ANY

slot element range 1 - 4

發(fā)現(xiàn)vt02 是占了第四個(gè)槽位。

還有就是會(huì)發(fā)現(xiàn)?
tsm:> q v 和tsm:> q libv 的磁帶看到的不一樣：
TSM:TSM_SVR1>?
q libv
ANR2017I Administrator SERVER_CONSOLE issued command: QUERY LIBVOLUME

Library Name???? Volume Name???? Status?????????????? Owner????????? Last Use????? Home??????? Device
?????????????????????????????????????????????????????????????????????????????????? Element???? Type??
------------???? -----------???? ----------------???? ----------???? ---------???? -------???? ------
VTL01??????????? AD0001????????? Private???????????????????????????? Data????????? 1?????????????????
VTL01??????????? AD0002????????? Private?????????????????????????????????????????? 2?????????????????
VTL01??????????? AD0003????????? Private?????????????????????????????????????????? 3?????????????????
VTL02??????????? AD0004????????? Scratch?????????????????????????????????????????? 4????????????????

TSM:TSM_SVR1>

Storage Management Server for Linux/i386 - Version 5, Release 5, Level 1.0

TSM:TSM_SVR1>?
q v
ANR2017I Administrator SERVER_CONSOLE issued command: QUERY VOLUME

Volume Name????????????????? Storage???????? Device???????? Estimated?????? Pct????? Volume?
???????????????????????????? Pool Name?????? Class Name????? Capacity????? Util????? Status?
------------------------???? -----------???? ----------???? ---------???? -----???? --------
/opt/tivoli/tsm/server/-???? ARCHIVEPOOL???? DISK?????????????? 5.0 M?????? 0.0???? On-Line?
?bin/archive.dsm????????????????????????????????????????????????????????????????????????????
/opt/tivoli/tsm/server/-???? BACKUPPOOL????? DISK????????????? 10.0 M?????? 0.0???? On-Line?
?bin/backup.dsm?????????????????????????????????????????????????????????????????????????????
AD0001?????????????????????? BA_TAPE_PO-???? LTO2?????????????? 1.0 G?????? 0.8???? Filling?
????????????????????????????? OL????????????????????????????????????????????????????????????
AD0002?????????????????????? BA_TAPE_PO-???? LTO2?????????????? 0.0 M?????? 0.0????? Empty??
????????????????????????????? OL????????????????????????????????????????????????????????????
AD0003?????????????????????? AR_TAPE_PO-???? LTO2?????????????? 0.0 M?????? 0.0????? Empty??
????????????????????????????? OL????????????????????????????????????????????????????????????
AS0001?????????????????????? BA_T_POOL?????? LTO3?????????????? 0.0 M?????? 0.0????? Empty??
AS0004?????????????????????? BA_T_POOL?????? LTO3?????????????? 0.0 M?????? 0.0????? Empty??
TT0003?????????????????????? AR_TAPE_PO-???? LTO2?????????????? 0.0 M?????? 0.0????? Empty??
????????????????????????????? OL????????????????????????????????????????????????????????????
TT0004?????????????????????? AR_TAPE_PO-???? LTO2?????????????? 0.0 M?????? 0.0????? Empty??
????????????????????????????? OL???????????????????????????????????????????????????????????
??????????????????????????????
發(fā)現(xiàn)只有貼了標(biāo)簽的磁帶：就是被label 過(guò)的才是進(jìn)帶庫(kù)的。
才是可用的。
q v 看到的是進(jìn)入 spool 池的磁帶，很多是不能用的。會(huì)報(bào)can not access 的。

轉(zhuǎn)載于:https://www.cnblogs.com/Study-Blog/p/8650106.html

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