topic Re: DLT bar code in Operating System - HP-UX

DLT bar code

Anthony khan — Fri, 10 May 2002 12:00:12 GMT

Hi,

I have DLT 7000 1/8, I am doing backup using tar...Is there any way DLT can scan the bar code the one I put on tape, or is it possible that we can bar code in tape header and after that tar can start writing on tape.

Re: DLT bar code

Duncan Edmonstone — Fri, 10 May 2002 12:06:17 GMT

tar doesn't have any concept of a volume label - you might want to look at fbackup, which does allow you to specify the volume label. As for finding the barcodes:

1. Identify the robotics device file using ioscan:

ioscan -fnC autoch

2. Use the mc command to find info about the contents of the 1/8:

mc -p /dev/ -r SID

HTH

Duncan

Re: DLT bar code

Sanjay_6 — Fri, 10 May 2002 12:50:39 GMT

Hi Anthony,

The bar code for DLT's come into play when you use autoloader or libraries. To make use of barcode in those configuration you should be using some backup application like Omniback, Veritas netbackup, Legato or something like that.

There is no way to read the bar code when you use DLT drives.

Hope this helps.

Regds

Re: DLT bar code

MANOJ SRIVASTAVA — Fri, 10 May 2002 13:00:40 GMT

Hi Anthony ,

There are essentially 3 pieces of equipment .

1. DLT drive .
2. Autochanger or the ROBOT ARM
3. The media

Now the bar code is put on the ouside case of the media dn the same is sensed bu a sensor which is on the autochanger or the robot arm so that it can sense to put a speicifc no. of media from a specific no of slot to a spcifc no. of drive that is to manage the media . Tar is a unix command which writer to the media in the device files specified , so incase you want to include the serial no or the bar code on the media it is not possible , however if you are working with Omni back the media manager takes care of it.

Manoj Srivastava

Re: DLT bar code

Helen French — Fri, 10 May 2002 13:04:28 GMT

Hi Anthony:

Yes, you can check the bar code information by using 'mc' command with -r option:

# mc -p device -n drive_number -r element_type
eg:
# mc -p device -n (slot number) -r IDSM

This was an addition to the 'mc' command, from HP-UX 11.01 version and for old versions, you need to have this patch:
10.20 - PHCO_16194
11.00 - PHCO_16195

# man mc - for more details.

HTH,
Shiju