MHVTL - Linux Virtual Tape Library

by **nia** » Sun Jan 31, 2010 1:16 am

Let's start with verifying that we have tape devices:

Code: Select all: [root@centos-64 ~]# lsscsi -g [0:0:0:0] mediumx SPECTRA PYTHON 5500 - /dev/sg9 [0:0:1:0] tape QUANTUM SDLT600 5500 /dev/st0 /dev/sg0 [0:0:2:0] tape QUANTUM SDLT600 5500 /dev/st1 /dev/sg1 [0:0:3:0] tape QUANTUM SDLT600 5500 /dev/st2 /dev/sg2 [0:0:4:0] tape QUANTUM SDLT600 5500 /dev/st3 /dev/sg4

Let's check the library status using mtx:

Code: Select all: [root@centos-64 ~]# mtx -f /dev/sg9 status Storage Changer /dev/sg9:4 Drives, 26 Slots ( 4 Import/Export ) Data Transfer Element 0:Empty Data Transfer Element 1:Empty Data Transfer Element 2:Empty Data Transfer Element 3:Empty Storage Element 1:Full :VolumeTag=DD1001S3 Storage Element 2:Full :VolumeTag=DD1002S3 Storage Element 3:Full :VolumeTag=DD1003S3 Storage Element 4:Full :VolumeTag=DD1004S3 Storage Element 5:Full :VolumeTag=DD1005S3 Storage Element 6:Full :VolumeTag=DD1006S3 Storage Element 7:Full :VolumeTag=DD1007S3 Storage Element 8:Full :VolumeTag=DD1008S3 Storage Element 9:Full :VolumeTag=DD1009S3 Storage Element 10:Full :VolumeTag=DD1010S3 Storage Element 11:Full :VolumeTag=UD1011L4 Storage Element 12:Full :VolumeTag=UD1012L4 Storage Element 13:Full :VolumeTag=UD1013L4 Storage Element 14:Full :VolumeTag=UD1014L4 Storage Element 15:Full :VolumeTag=UD1015L4 Storage Element 16:Full :VolumeTag=UD1016L4 Storage Element 17:Full :VolumeTag=UD1017L4 Storage Element 18:Full :VolumeTag=UD1018L4 Storage Element 19:Full :VolumeTag=UD1019L4 Storage Element 20:Full :VolumeTag=UD1020L4 Storage Element 21:Full :VolumeTag=CLN100S3 Storage Element 22:Full :VolumeTag=CLN101L4 Storage Element 23 IMPORT/EXPORT:Empty Storage Element 24 IMPORT/EXPORT:Empty Storage Element 25 IMPORT/EXPORT:Empty Storage Element 26 IMPORT/EXPORT:Empty

Let's load a tape from slot 5 to drive 1

Code: Select all: [root@centos-64 ~]# mtx -f /dev/sg9 load 5 0

Let's verify that we have loaded the tape from slot 5 into drive 1

Code: Select all: [root@centos-64 ~]# mtx -f /dev/sg9 status| grep "Data Transfer Element 0" Data Transfer Element 0:Full (Storage Element 5 Loaded):VolumeTag = DD1005S3

Let's also verify that we have a tape loaded in drive 1 using mt:

Code: Select all: [root@centos-64 ~]# mt -f /dev/st0 status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 0 bytes. Density code 0x4a (no translation). Soft error count since last status=0 General status bits on (41010000): BOT ONLINE IM_REP_EN

Let's write some data using tar:

Code: Select all: [root@centos-64 ~]# tar -cvvf /dev/st0 /root/mhvtl tar: Removing leading `/' from member names drwxr-xr-x root/root 0 2010-01-29 20:55:24 /root/mhvtl/ drwxr-xr-x root/root 0 2010-01-29 20:55:24 /root/mhvtl/mhvtl-0.18/ drwxr-xr-x / 0 2010-01-27 15:03:35 /root/mhvtl/mhvtl-0.18/etc/ -rw-r--r-- / 1021 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/etc/library_contents.sample -rw-r--r-- / 547 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/etc/Makefile -rw-r--r-- / 9444 2010-01-27 15:03:35 /root/mhvtl/mhvtl-0.18/etc/mhvtl -rw-r--r-- / 9447 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/etc/mhvtl.in -rw-r--r-- / 647 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/README drwxr-xr-x / 0 2009-12-17 16:53:04 /root/mhvtl/mhvtl-0.18/scripts/ -rwxr-xr-x / 31160 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/scripts/checkpatch.pl drwxr-xr-x / 0 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/ -rw-r--r-- root/root 11061 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/.mhvtl.mod.o.cmd drwxr-xr-x root/root 0 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/.tmp_versions/ -rw-r--r-- root/root 77 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/.tmp_versions/mhvtl.mod -rw-r--r-- / 3634 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/kernel/fetch27.c -rw-r--r-- root/root 273144 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/mhvtl.o -rw-r--r-- / 1236 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/kernel/Makefile -rw-r--r-- root/root 2360 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/mhvtl.mod.c -rw-r--r-- / 3692 2009-04-09 03:18:04 /root/mhvtl/mhvtl-0.18/kernel/fetch26.c -rw-r--r-- root/root 83696 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/mhvtl.mod.o -rw-r--r-- root/root 0 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/Module.markers -rw-r--r-- root/root 14519 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/.mhvtl.o.cmd -rw-r--r-- / 4539 2009-03-09 01:44:10 /root/mhvtl/mhvtl-0.18/kernel/fetch24.c -rw-r--r-- / 1070 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/kernel/vtl_common.h -rw-r--r-- root/root 188 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/.mhvtl.ko.cmd -rw-r--r-- root/root 0 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/Module.symvers -rw-r--r-- root/root 355203 2010-01-29 20:55:38 /root/mhvtl/mhvtl-0.18/kernel/mhvtl.ko -rw-r--r-- / 4437 2009-03-09 01:44:10 /root/mhvtl/mhvtl-0.18/kernel/fetch.c -rw-r--r-- / 45946 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/kernel/mhvtl.c -rw-r--r-- / 1788 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/Makefile drwxr-xr-x / 0 2009-02-24 19:03:14 /root/mhvtl/mhvtl-0.18/include/ -rw-r--r-- / 138 2009-02-24 19:03:14 /root/mhvtl/mhvtl-0.18/include/vtl_u.h -rw-r--r-- / 5240 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/INSTALL drwxr-xr-x / 0 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/ -rw-r--r-- / 2303 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/vtlcmd.1 -rw-r--r-- / 1309 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/mhvtl.conf.5 -rw-r--r-- / 1599 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/vtllibrary.1 -rw-r--r-- / 1380 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/vtltape.1 -rw-r--r-- / 1565 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/library_contents.5 -rw-r--r-- / 1371 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/mktape.1 -rw-r--r-- / 888 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/make_vtl_devices.1 -rw-r--r-- / 1081 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/build_library_config.1 -rw-r--r-- / 3328 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/man/mhvtl.1 drwxr-xr-x / 0 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/ -rw-r--r-- / 26805 2009-03-09 19:54:31 /root/mhvtl/mhvtl-0.18/doc/index.html drwxr-xr-x / 0 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/ -rw-r--r-- / 9774 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/device.conf -rw-r--r-- / 201 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/mhvtl.conf -rw-r--r-- / 1579 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.30 -rw-r--r-- / 1579 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.20 -rw-r--r-- / 1579 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.10 -rw-r--r-- / 1579 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.40 drwxr-xr-x / 0 2010-01-29 20:55:47 /root/mhvtl/mhvtl-0.18/usr/ -rw-r--r-- / 2580 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/dump_tape.c -rw-r--r-- root/root 27480 2010-01-29 20:55:42 /root/mhvtl/mhvtl-0.18/usr/spc.o -rw-r--r-- root/root 12632 2010-01-29 20:55:44 /root/mhvtl/mhvtl-0.18/usr/q.o -rwxr-xr-x root/root 63559 2010-01-29 20:55:43 /root/mhvtl/mhvtl-0.18/usr/libvtlscsi.so -rw-r--r-- / 3908 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/Makefile -rw-r--r-- root/root 66656 2010-01-29 20:55:42 /root/mhvtl/mhvtl-0.18/usr/vtllib.o -rwxr-xr-x root/root 55518 2010-01-29 20:55:45 /root/mhvtl/mhvtl-0.18/usr/dump_tape -rw-r--r-- / 727 2009-12-16 15:52:24 /root/mhvtl/mhvtl-0.18/usr/security_protocol.h -rw-r--r-- / 1677 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/q.h -rw-r--r-- / 10576 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/mktape.c -rwxr-xr-x / 2632 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/make_vtl_media.in -rw-r--r-- root/root 21792 2010-01-29 20:55:45 /root/mhvtl/mhvtl-0.18/usr/vtlcmd.o -rw-r--r-- / 4302 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/vtltape.h -rwxr-xr-x / 1715 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/make_vtl_devices -rw-r--r-- / 13132 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/vtllib.h -rw-r--r-- / 7220 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/vtlcmd.c -rwxr-xr-x root/root 62443 2010-01-29 20:55:46 /root/mhvtl/mhvtl-0.18/usr/mktape -rwxr-xr-x / 2530 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/build_library_config -rw-r--r-- / 65783 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/vtllibrary.c -rw-r--r-- root/root 13328 2010-01-29 20:55:44 /root/mhvtl/mhvtl-0.18/usr/dump_tape.o -rw-r--r-- root/root 7720 2010-01-29 20:55:45 /root/mhvtl/mhvtl-0.18/usr/dump_messageQ.o -rw-r--r-- root/root 238504 2010-01-29 20:55:44 /root/mhvtl/mhvtl-0.18/usr/vtltape.o -rw-r--r-- root/root 2630 2010-01-29 20:55:47 /root/mhvtl/mhvtl-0.18/usr/make_vtl_media -rw-r--r-- / 2702 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/q.c -rw-r--r-- root/root 73920 2010-01-29 20:55:44 /root/mhvtl/mhvtl-0.18/usr/vtlcart.o -rw-r--r-- / 1791 2009-05-25 17:44:47 /root/mhvtl/mhvtl-0.18/usr/be_byteshift.h -rw-r--r-- / 94339 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/vtltape.c -rw-r--r-- root/root 168760 2010-01-29 20:55:46 /root/mhvtl/mhvtl-0.18/usr/vtllibrary.o -rwxr-xr-x root/root 118880 2010-01-29 20:55:46 /root/mhvtl/mhvtl-0.18/usr/vtllibrary -rw-r--r-- / 425 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/spc.h -rw-r--r-- / 20086 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/vtlcart_v1.c -rwxr-xr-x root/root 17125 2010-01-29 20:55:45 /root/mhvtl/mhvtl-0.18/usr/dump_messageQ -rw-r--r-- / 6288 2010-01-07 16:15:39 /root/mhvtl/mhvtl-0.18/usr/scsi.h -rw-r--r-- / 27904 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/vtlcart.c -rw-r--r-- / 9200 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/spc.c -rw-r--r-- / 1522 2010-01-27 02:02:46 /root/mhvtl/mhvtl-0.18/usr/dump_messageQ.c -rwxr-xr-x root/root 25990 2010-01-29 20:55:45 /root/mhvtl/mhvtl-0.18/usr/vtlcmd -rw-r--r-- root/root 28208 2010-01-29 20:55:45 /root/mhvtl/mhvtl-0.18/usr/mktape.o -rw-r--r-- / 18480 2010-01-27 02:01:37 /root/mhvtl/mhvtl-0.18/usr/vtllib.c -rwxr-xr-x root/root 190515 2010-01-29 20:55:44 /root/mhvtl/mhvtl-0.18/usr/vtltape -rw-r--r-- / 1876 2009-04-07 16:17:32 /root/mhvtl/mhvtl-0.18/usr/make_scsi_dev -rw-r--r-- / 24994 2010-01-27 02:05:50 /root/mhvtl/mhvtl-0.18/mhvtl.spec -rw-r--r-- root/root 128605 2010-01-27 17:29:46 /root/mhvtl/mhvtl-2010-01-28.tgz

Let's rewind the tape using mt:

Code: Select all: [root@centos-64 ~]# mt -f /dev/st0 rewind

Let's confirm data written to tape:

Code: Select all: [root@centos-64 ~]# tar -tvvf /dev/st0 drwxr-xr-x root/root 0 2010-01-29 20:55:24 root/mhvtl/ drwxr-xr-x root/root 0 2010-01-29 20:55:24 root/mhvtl/mhvtl-0.18/ drwxr-xr-x 1000/1000 0 2010-01-27 15:03:35 root/mhvtl/mhvtl-0.18/etc/ -rw-r--r-- 1000/1000 1021 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/etc/library_contents.sample -rw-r--r-- 1000/1000 547 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/etc/Makefile -rw-r--r-- 1000/1000 9444 2010-01-27 15:03:35 root/mhvtl/mhvtl-0.18/etc/mhvtl -rw-r--r-- 1000/1000 9447 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/etc/mhvtl.in -rw-r--r-- 1000/1000 647 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/README drwxr-xr-x 1000/1000 0 2009-12-17 16:53:04 root/mhvtl/mhvtl-0.18/scripts/ -rwxr-xr-x 1000/1000 31160 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/scripts/checkpatch.pl drwxr-xr-x 1000/1000 0 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/ -rw-r--r-- root/root 11061 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/.mhvtl.mod.o.cmd drwxr-xr-x root/root 0 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/.tmp_versions/ -rw-r--r-- root/root 77 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/.tmp_versions/mhvtl.mod -rw-r--r-- 1000/1000 3634 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/kernel/fetch27.c -rw-r--r-- root/root 273144 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/mhvtl.o -rw-r--r-- 1000/1000 1236 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/kernel/Makefile -rw-r--r-- root/root 2360 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/mhvtl.mod.c -rw-r--r-- 1000/1000 3692 2009-04-09 03:18:04 root/mhvtl/mhvtl-0.18/kernel/fetch26.c -rw-r--r-- root/root 83696 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/mhvtl.mod.o -rw-r--r-- root/root 0 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/Module.markers -rw-r--r-- root/root 14519 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/.mhvtl.o.cmd -rw-r--r-- 1000/1000 4539 2009-03-09 01:44:10 root/mhvtl/mhvtl-0.18/kernel/fetch24.c -rw-r--r-- 1000/1000 1070 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/kernel/vtl_common.h -rw-r--r-- root/root 188 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/.mhvtl.ko.cmd -rw-r--r-- root/root 0 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/Module.symvers -rw-r--r-- root/root 355203 2010-01-29 20:55:38 root/mhvtl/mhvtl-0.18/kernel/mhvtl.ko -rw-r--r-- 1000/1000 4437 2009-03-09 01:44:10 root/mhvtl/mhvtl-0.18/kernel/fetch.c -rw-r--r-- 1000/1000 45946 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/kernel/mhvtl.c -rw-r--r-- 1000/1000 1788 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/Makefile drwxr-xr-x 1000/1000 0 2009-02-24 19:03:14 root/mhvtl/mhvtl-0.18/include/ -rw-r--r-- 1000/1000 138 2009-02-24 19:03:14 root/mhvtl/mhvtl-0.18/include/vtl_u.h -rw-r--r-- 1000/1000 5240 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/INSTALL drwxr-xr-x 1000/1000 0 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/ -rw-r--r-- 1000/1000 2303 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/vtlcmd.1 -rw-r--r-- 1000/1000 1309 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/mhvtl.conf.5 -rw-r--r-- 1000/1000 1599 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/vtllibrary.1 -rw-r--r-- 1000/1000 1380 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/vtltape.1 -rw-r--r-- 1000/1000 1565 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/library_contents.5 -rw-r--r-- 1000/1000 1371 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/mktape.1 -rw-r--r-- 1000/1000 888 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/make_vtl_devices.1 -rw-r--r-- 1000/1000 1081 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/build_library_config.1 -rw-r--r-- 1000/1000 3328 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/man/mhvtl.1 drwxr-xr-x 1000/1000 0 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/ -rw-r--r-- 1000/1000 26805 2009-03-09 19:54:31 root/mhvtl/mhvtl-0.18/doc/index.html drwxr-xr-x 1000/1000 0 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/ -rw-r--r-- 1000/1000 9774 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/device.conf -rw-r--r-- 1000/1000 201 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/mhvtl.conf -rw-r--r-- 1000/1000 1579 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.30 -rw-r--r-- 1000/1000 1579 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.20 -rw-r--r-- 1000/1000 1579 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.10 -rw-r--r-- 1000/1000 1579 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/doc/4_library_example/library_contents.40 drwxr-xr-x 1000/1000 0 2010-01-29 20:55:47 root/mhvtl/mhvtl-0.18/usr/ -rw-r--r-- 1000/1000 2580 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/dump_tape.c -rw-r--r-- root/root 27480 2010-01-29 20:55:42 root/mhvtl/mhvtl-0.18/usr/spc.o -rw-r--r-- root/root 12632 2010-01-29 20:55:44 root/mhvtl/mhvtl-0.18/usr/q.o -rwxr-xr-x root/root 63559 2010-01-29 20:55:43 root/mhvtl/mhvtl-0.18/usr/libvtlscsi.so -rw-r--r-- 1000/1000 3908 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/Makefile -rw-r--r-- root/root 66656 2010-01-29 20:55:42 root/mhvtl/mhvtl-0.18/usr/vtllib.o -rwxr-xr-x root/root 55518 2010-01-29 20:55:45 root/mhvtl/mhvtl-0.18/usr/dump_tape -rw-r--r-- 1000/1000 727 2009-12-16 15:52:24 root/mhvtl/mhvtl-0.18/usr/security_protocol.h -rw-r--r-- 1000/1000 1677 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/q.h -rw-r--r-- 1000/1000 10576 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/mktape.c -rwxr-xr-x 1000/1000 2632 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/make_vtl_media.in -rw-r--r-- root/root 21792 2010-01-29 20:55:45 root/mhvtl/mhvtl-0.18/usr/vtlcmd.o -rw-r--r-- 1000/1000 4302 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/vtltape.h -rwxr-xr-x 1000/1000 1715 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/make_vtl_devices -rw-r--r-- 1000/1000 13132 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/vtllib.h -rw-r--r-- 1000/1000 7220 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/vtlcmd.c -rwxr-xr-x root/root 62443 2010-01-29 20:55:46 root/mhvtl/mhvtl-0.18/usr/mktape -rwxr-xr-x 1000/1000 2530 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/build_library_config -rw-r--r-- 1000/1000 65783 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/vtllibrary.c -rw-r--r-- root/root 13328 2010-01-29 20:55:44 root/mhvtl/mhvtl-0.18/usr/dump_tape.o -rw-r--r-- root/root 7720 2010-01-29 20:55:45 root/mhvtl/mhvtl-0.18/usr/dump_messageQ.o -rw-r--r-- root/root 238504 2010-01-29 20:55:44 root/mhvtl/mhvtl-0.18/usr/vtltape.o -rw-r--r-- root/root 2630 2010-01-29 20:55:47 root/mhvtl/mhvtl-0.18/usr/make_vtl_media -rw-r--r-- 1000/1000 2702 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/q.c -rw-r--r-- root/root 73920 2010-01-29 20:55:44 root/mhvtl/mhvtl-0.18/usr/vtlcart.o -rw-r--r-- 1000/1000 1791 2009-05-25 17:44:47 root/mhvtl/mhvtl-0.18/usr/be_byteshift.h -rw-r--r-- 1000/1000 94339 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/vtltape.c -rw-r--r-- root/root 168760 2010-01-29 20:55:46 root/mhvtl/mhvtl-0.18/usr/vtllibrary.o -rwxr-xr-x root/root 118880 2010-01-29 20:55:46 root/mhvtl/mhvtl-0.18/usr/vtllibrary -rw-r--r-- 1000/1000 425 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/spc.h -rw-r--r-- 1000/1000 20086 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/vtlcart_v1.c -rwxr-xr-x root/root 17125 2010-01-29 20:55:45 root/mhvtl/mhvtl-0.18/usr/dump_messageQ -rw-r--r-- 1000/1000 6288 2010-01-07 16:15:39 root/mhvtl/mhvtl-0.18/usr/scsi.h -rw-r--r-- 1000/1000 27904 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/vtlcart.c -rw-r--r-- 1000/1000 9200 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/spc.c -rw-r--r-- 1000/1000 1522 2010-01-27 02:02:46 root/mhvtl/mhvtl-0.18/usr/dump_messageQ.c -rwxr-xr-x root/root 25990 2010-01-29 20:55:45 root/mhvtl/mhvtl-0.18/usr/vtlcmd -rw-r--r-- root/root 28208 2010-01-29 20:55:45 root/mhvtl/mhvtl-0.18/usr/mktape.o -rw-r--r-- 1000/1000 18480 2010-01-27 02:01:37 root/mhvtl/mhvtl-0.18/usr/vtllib.c -rwxr-xr-x root/root 190515 2010-01-29 20:55:44 root/mhvtl/mhvtl-0.18/usr/vtltape -rw-r--r-- 1000/1000 1876 2009-04-07 16:17:32 root/mhvtl/mhvtl-0.18/usr/make_scsi_dev -rw-r--r-- 1000/1000 24994 2010-01-27 02:05:50 root/mhvtl/mhvtl-0.18/mhvtl.spec -rw-r--r-- root/root 128605 2010-01-27 17:29:46 root/mhvtl/mhvtl-2010-01-28.tgz

Let's unload the tape using mtx:

Code: Select all: [root@centos-64 ~]# mtx -f /dev/sg9 unload 5 0 Unloading Data Transfer Element into Storage Element 5...done

by **dieth** » Wed Apr 07, 2010 3:33 am

can you share your /etc/mhvtl/*.conf files?

by **nia** » Wed Apr 07, 2010 12:25 pm

download/file.php?id=45

by **seamap3d** » Tue Jul 27, 2010 11:19 pm

Hi,

thanks for the detailed report. We are trying to use mhvtl for testing access to scsi tape devices
We have mhvtl version 0.18.9 up and running (as it seems) using the default device.conf files etc.
Operating system is Ubuntu 9.10 , 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 02:39:34 UTC 2010 x86_64 GNU/Linux

lsscsi -g gives us:

[0:0:0:0] disk ATA WDC WD5000AAKS-7 12.0 /dev/sda /dev/sg0
[1:0:0:0] cd/dvd Optiarc DVD+-RW AD-5170S 101B /dev/sr0 /dev/sg1
[8:0:0:0] mediumx SPECTRA PYTHON 550V /dev/sch0 /dev/sg10
[8:0:1:0] tape IBM ULT3580-TD5 550V /dev/st0 /dev/sg2
[8:0:2:0] tape IBM ULT3580-TD5 550V /dev/st1 /dev/sg3
[8:0:3:0] tape IBM ULT3580-TD4 550V /dev/st2 /dev/sg4
[8:0:4:0] tape IBM ULT3580-TD4 550V /dev/st3 /dev/sg5
[8:0:8:0] mediumx SPECTRA PYTHON 550V /dev/sch1 /dev/sg11
[8:0:9:0] tape IBM ULT3580-TD4 550V /dev/st4 /dev/sg6
[8:0:10:0] tape IBM ULT3580-TD4 550V /dev/st5 /dev/sg7
[8:0:11:0] tape IBM ULT3580-TD4 550V /dev/st6 /dev/sg8
[8:0:12:0] tape IBM ULT3580-TD4 550V /dev/st7 /dev/sg9

Also we get:

mtx -f /dev/sg10 status

Storage Changer /dev/sg10:4 Drives, 34 Slots ( 4 Import/Export )
Data Transfer Element 0:Empty
Data Transfer Element 1:Empty
Data Transfer Element 2:Empty
Data Transfer Element 3:Empty
Storage Element 1:Full :VolumeTag=DD1001S3
Storage Element 2:Full :VolumeTag=DD1002S3
Storage Element 3:Full :VolumeTag=DD1003S3
Storage Element 4:Full :VolumeTag=DD1004S3
Storage Element 5:Full :VolumeTag=DD1005S3
Storage Element 6:Full :VolumeTag=DD1006S3
Storage Element 7:Full :VolumeTag=DD1007S3
Storage Element 8:Full :VolumeTag=DD1008S3
Storage Element 9:Full :VolumeTag=DD1009S3
Storage Element 10:Full :VolumeTag=DD1010S3
Storage Element 11:Full :VolumeTag=UD1011L4
Storage Element 12:Full :VolumeTag=UD1012L4
Storage Element 13:Full :VolumeTag=UD1013L4
Storage Element 14:Full :VolumeTag=UD1014L4
Storage Element 15:Full :VolumeTag=UD1015L4
Storage Element 16:Full :VolumeTag=UD1016L4
Storage Element 17:Full :VolumeTag=UD1017L4
Storage Element 18:Full :VolumeTag=UD1018L4
Storage Element 19:Full :VolumeTag=UD1019L4
Storage Element 20:Full :VolumeTag=UD1020L4
Storage Element 21:Full :VolumeTag=CLN100S3
Storage Element 22:Full :VolumeTag=CLN101L4
Storage Element 23:Full :VolumeTag=CLN102L5
Storage Element 24:Full :VolumeTag=UD1024L5
Storage Element 25:Full :VolumeTag=UD1025L5
Storage Element 26:Full :VolumeTag=UD1026L5
Storage Element 27:Full :VolumeTag=UD1027L5
Storage Element 28:Full :VolumeTag=UD1028L5
Storage Element 29:Full :VolumeTag=UD1029L5
Storage Element 30:Full :VolumeTag=UD1030L5
Storage Element 31 IMPORT/EXPORT:Empty
Storage Element 32 IMPORT/EXPORT:Empty
Storage Element 33 IMPORT/EXPORT:Empty
Storage Element 34 IMPORT/EXPORT:Empty

so far looking pretty good.
However, when we try to load a tape we get this:

mtx -f /dev/sg10 load 5 0

Loading media from Storage Element 5 into drive 0...mtx: Request Sense: Long Report=yes
mtx: Request Sense: Valid Residual=yes
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Hardware Error
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Residual = 00 00 00 00
mtx: Request Sense: Additional Sense Code = 04
mtx: Request Sense: Additional Sense Qualifier = 03
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
MOVE MEDIUM from Element Address 1028 to 1 Failed

We've looked through the forum, but didn't find anything related.

Any thoughts ? Doesn't seem we are far away from getting this up and running ...

Cheers

by **ap2010** » Wed Jul 28, 2010 5:56 am

Yes,

seen on the tape label extension S3 you have defined SDLT tapes for the first 10 elements, the labels ending in L4 are LTO4 tapes. As you have defined all your tapedrives as LTO5 and LTO4 drives (names ending in -TD5 and -TD4) you are trying to insert an SDLT tape into an LTO5 drive.

mtx -f /dev/sg10 load 11 2

would work, as you are trying to insert an LTO4 tape into an LTO4 drive.

So your problem is in the configuration.

Cheers,

Albert

by **seamap3d** » Wed Jul 28, 2010 7:37 pm

Wow,
thanks for that Albert and thanks for your quick reply !

I tried what you suggested and it worked just fine.

mtx -f /dev/sg10 load 11 2
Loading media from Storage Element 11 into drive 2...done

All the other tests posted above (nia) work just fine from here too.

Sorry I wasn't familiar with the tape labeling schemes ...

Cheers,
Christof

MHVTL - Linux Virtual Tape Library

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