Restore from hcart2 media using hcart tape drive

[ajalboush]

currently my tape drive are LTO4, i need to restore from hcart2 media which was taken using LTO2 tape drives.

as I know if i want to do this i need to change the LTO4 tape drive from Hcart to Hcat2, but when I apply this change it give me: unable to update drive information, Invalid usage. 

any help please. 

[mph999]

How are you making the change ?

[Marianne]

Correct - you need to change the drive density to hcart2.

Did you use the the GUI or cmd? If cmd - it looks like you made a small typo error....

If you tried the GUI, please go through the steps again and take screenshots of each step.

Please post the screenshots as attachments.

[ajalboush]

i go devices, drive, right click drive change, then i choose hcat2 instead of hceart, then ok. then i recieved the error mentioned. 

[Will_Restore]

Media and Device Management > Devices > Drives

  highlight a drive and click Edit, Change

  modify Drive type from 1/2" Cartridge (hcart) to 1/2" cartridge (hcart2)

[Mark_Solutions]

If this is a restore from an older tape it may be easier for you to change your old tape density to hcart rather then mess with your currently configured tape drives - it will then work in your new drives:

vmchange -h EMMServer -new_mt hcart -m ABC123

Just put your EMM Server name (usually the Master) and correct barcode in the above

[ajalboush]

what about the data on the media i think it will be destroyed when changing media density, i read this in a forum. 

are you sure???

[ajalboush]

I use GUI, I attahced the screen shot. 

[Will_Restore]

No, but you should set write-protect tab though, so tape does not accidentally get overwritten

[ajalboush]

I am still sure chnaging the Tape Drive should work, so we will try until it work. 

[Will_Restore]

look at the bottom pane -- blank and MISSING drive paths

that needs to be cleaned up

[Mark_Solutions]

I see that your tapes drives have multiple paths so perhaps one of your media servers specified is not available

There are no issues with changing the density using the vmchange command

This will avoid your system loosing one of its drives for all of its other functions (backups and duplications) and will also allow the tape to be used in any drive

[ajalboush]

how it can be cleaned, i tried delete but does not work 

[Mark_Solutions]

I do see that one path is not enabled - are any missing?

It may also be that the drive is in use somewhere (writing a backup or duplication) in which case you would not be able to change it.
 

My reccomendation still stands to use the vmchange command rather than perform a major NetBackup reconfiguration

[ajalboush]

Any help on how to delete the missing path. 

[Mark_Solutions]

You will need to use tpconfig - see the commands guide for full details

tpconfig -l

will list all of your drives and paths showing any that have errors

You can then use tpconfig -delete -drive -path -noverify adding in all required options as laid out in the guide:

http://www.symantec.com/docs/DOC3684

[ajalboush]

i deleted the miising path, now when changing type and press ok, i get the follwoing error:

netbackup unable to update drive path information. protocol error (20)

is there a command line that can be used to chnage the drive type. 

[Will_Restore · Accepted solution]

tpconfig -update  -drive drvindex  -type drvtype  -path drivepath