DLT8000 device needs tobe terminated right ?.
Hi All,
I just had DLT8000 in hand and did normal installation.
After doing booting with option -r , then I inserted one cartridge in to slot and tried to run comand mt -f /dev/rmt/1n status, the result showed that "the tape not loaded or drive offline".I tried to insert another ones that i supposed that it's better and also did the same step, the resault returned status of DLT8000 that it looked ok now but then, sometimes the resault returned the same as error messag "tape not laoded or Drive offline".
For all problems, i supposed that there was a incorrect configuration here that was causing by lacking of one Terminator to terminate the Scsi bus device at back of the device. Therefore, please teach me that whether DLT8000 is required mandatorily to be terminated correctly or NOT ? in this case (Platform: Sunlade2000, Solaris8)
Thanks
Solar.
[1017 byte] By [
solar_moon] at [2007-11-25 22:45:24]
# 1
Hi All, Do you know what is Sun exact Part# of Terminator for DLT8000 Tape device ?. Thanks Solar
# 2
Hi All,
After some posts before.
Now, i brief all our works done during past two day to get DLT8000 is in progress.
I connected Sun StorEdge FelixPack DLT8000 to Sun SPARC (Running Solaris <img src="images/smiley_icons/icon_cool.gif" border=0 alt="Cool"> with the only Standard SCSI connector on-board and using one Terminator (LVD/SE multi-mode) to terminate the remaining scsi connector at back of DLT8000.And turned on the DLT device. i also inserted one data cartridge afterthen.
Finally, i booted the system with -r.
At root prompt, i ran mt -t /dev/rmt/1 status, the result showed "Quantum DLT8000 Tape drive
Sense Key(0x0)=No addtitional sense residual=0 retires=0
File no=0 block no=0.".This sounds good, i also tried to backup one data file and it backed up ok but we has the problems when we backed up more one files to the same tape, the first file backedup file was overwritten by the next file and it seems that the tape or head could not move to new position in tape.
Because we also tried to run #mt -f /dev/rmt/1 fsf 1, the comand finisned without error but when we ran #mt -f /dev/rmt/1 stat, the result returned to the same as above without any changes of values "File No=?" (this value is steadily assigned to ZERO), this means that Tape/head could not forward futher another position of tape ?.
Pls help me to have one correct solution to fix this problem.
Thanks
Solar
"
# 3
in all this, you didn't mention what scsi address the tape drive is set at... and that flexipack is most likely self-terminating, but I don't think an external terminator will hurt.
how many drives in the SunBlade?
sometimes it is just better to have a tape attached to a pci scsi card...
haroldkarl
# 4
Well the tape head doesn't really move all that much, the tape moves. What command are you using to do the backup? You should use one of the items in /dev/rmt that ends with "n" (no-rewind)
# 5
Hi All,
Thanks for your replies, i set manually SCSI ID for Tape drive is 4 as the default.After booting with -r , i looked at into /dev/rmt/* using ls -l and saw that the device name that was mapped to the correct SCSI ID as the below:
1-->.../.../devices/<a href="mailto:pci@8" target="_blank">pci@8</a>,700000/<a href="mailto:scsi@6" target="_blank">scsi@6</a>,1/<a href="mailto:st@4" target="_blank">st@4</a>,0.
I supposed that there is no any conflicts for the scsi address settings on our system since it has just used internal disks and CD.As a result, i tried to run proble-scsi-all.
I also thought that using one differential scsi connector is so good but last time, on this system, we has gotten the same Sun Flexipack DLT8000 connected to the same standard scsi connector and it ran without any issues.
Jus have problems as mentioned when we removed the previous DLT8000 and installed one New one NOW).
For Xwindow's advice, as mentioned,
the comand #mt-t /dev/rmt/1 fsf 1 could not move tape so that we could backup the only file on each tape using #tar cvf /dev/rmt/1 <backupdatafile> and next backup file would be overwritten on the previous file stored on the tape.
Thanks.
Solar
# 6
Hi All,
I just attached DLT8000 to Sunblade 2000/Solaris 8 via standard scsi connector.Every installation works went fine.Now, i could use command #tar cvf /dev/rmt/1n <files> to backup some files to tape successfully but the problem is that when i ran command #mt -t /dev/rmt/1n fsf 1 at beginning of tape (BOT), then there was a error messgas issued:
/dev/rmt/1n fsfs 1 Failed: I/O Error
And i also looked at the output of command #mt -t /dev/rmt/1n fsf 1 that returned to :
================Output=============
Quantum DLT8000 Tape Drive
Sense Key(OxO)= No additional Sense residual =0 retires=0
File no=0 Block no=0.
======================================
Normally, Count of File No has been changed whenever the command #mt -t /dev/rmt/1n fsf 1 ran ok on one data tape with some files backed up.
If some one experinced on this issue, pls help me to get this done.
Thanks
Solar
