Email Subscription Notifications Suspended Temporarily
We are in the process of making navigation in the Servers and Operating Systems forums simpler and more direct. While doing this, we have to temporarily suspend email notifications for subscriptions. If you are subscribed to one or more discussion boards or blogs in the community, please check them daily to see new content. Notifications will be turned back on in a few days. We apologize for any inconvenience this may cause. Thanks, Warren_Admin
StoreEver Tape Storage
cancel
Showing results for 
Search instead for 
Did you mean: 

Why can't my system access my tape drive

SOLVED
Go to solution
Joe Bozen
Advisor

Why can't my system access my tape drive

I've just attached a tape drive unit to my rx5670 (hp 11.23) and when I perform an IOSCAN I get this result:

0/5/1/1.2.0 tape QUANTUM DLT8000

In my /dev/rmt directory I see all the special device files. However, when I try to perform a tape command, I get errors that make me believe my system still can't see/access my tape library.

mt -f /dev/rmt/2m status
on tape open: No such device or address

# tar -cf /dev/rmt/2m //
tar: cannot open /dev/rmt/2m

I did try each device in the /dev/rmt directory but non of them worked. I was thinking about deleting all the files in the /dev/rmt directory and rebooting server and tape drive.

Any other thoughts!

tape-less
11 REPLIES
Michael Tully
Honored Contributor
Solution

Re: Why can't my system access my tape drive

Could you verify the driver, it should be stape not tape.
Anyone for a Mutiny ?
Hoang Chi Cong_1
Honored Contributor

Re: Why can't my system access my tape drive

Hi.
Normaly, the correct permission of the device file is:

666 bin:bin

You please check again.
If you want to know more about the device, post again

Hope this helps.

Jim
Looking for a special chance.......
Luk Vandenbussche
Honored Contributor

Re: Why can't my system access my tape drive

What is the complete output off
ioscan -fnC tape
florence mathon lermusi
Trusted Contributor

Re: Why can't my system access my tape drive

stupid but it can happens : is there a tape in your drive ?
Joe Bozen
Advisor

Re: Why can't my system access my tape drive

Thanks for the responses.

1. The permissions on the files were ok.

2. I'll need to check on the tape but I believe it was loaded but I was doing so many different things it could have been unloaded.

3. Results from ioscan
# ioscan -fnC tape
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 2 0/5/1/1.2.0 stape NO_HW DEVICE QUANTUM DLT8000
/dev/rmt/2m /dev/rmt/2mnb /dev/rmt/c7t2d0BESTn
/dev/rmt/2mb /dev/rmt/c7t2d0BEST /dev/rmt/c7t2d0BESTnb
/dev/rmt/2mn /dev/rmt/c7t2d0BESTb
Luk Vandenbussche
Honored Contributor

Re: Why can't my system access my tape drive

Something physicaly is wrong.
The Sw state says NO.
Your you sure it is connected to a good SCSI controller. Is your drive supported on the scsi controller? What is the HP partno off your drive
Joe Bozen
Advisor

Re: Why can't my system access my tape drive

Got my tape drive to work. I followed the same routine when I built my daughters bike and nothing worked, I read the directions :)

After I found the owners manual on my tape drive here at the HP web, I found out that I needed to connect a couple more cabels and SCSI terminators to my device. After I made sure my tape drive looked like the picture I downloaded :LOL: my tape drive came online.

Thanks again to all the suggestions and ideas!

joe...
Joe Bozen
Advisor

Re: Why can't my system access my tape drive

Btw,

When I look at my /dev/rmt directory, I see a bunch of different device files and from what I've seen, the files in my directory aren't any different from those in others. So, of those files, which one should I be using (ATT or BERKELEY)

# lssf 0m
stape card instance 5 SCSI target 1 SCSI LUN 0 at&t best density available at address ??? 0m
# lssf 0mb
stape card instance 5 SCSI target 1 SCSI LUN 0 berkeley best density available at address ??? 0mb

thanks,

joe...

Hoang Chi Cong_1
Honored Contributor

Re: Why can't my system access my tape drive

Hi Joe.
Thank for your reply. I can learn some importance from your reply.

Anyway, I have a short documentation. If you want, please see in the attachment.
This may you already known but I hope that it can bring to you some useful information.
Very glad to help you and goodluck to you.

Regards,

Jimkery

Looking for a special chance.......
Hoang Chi Cong_1
Honored Contributor

Re: Why can't my system access my tape drive

Oh...sorry!
I forgot the attachment file.

Hope this helps.

Regard,
Jimkery
Looking for a special chance.......
Kurt Beyers.
Honored Contributor

Re: Why can't my system access my tape drive

Joe,

Use the ATT device file on HP-UX.

A Berkeley device file is used on Sun Solaris servers.

Kurt