topic Best device file to take an ignite backup on 10.20 in Operating System - HP-UX

Best device file to take an ignite backup on 10.20

Sunil Garg — Mon, 12 Feb 2018 22:00:35 GMT

Hi there,

I had restored a server from other server's backup and now facing a challange of taking an Ignite backup to be future-safe.

Could anyone tell me, what is the best device file to take an ignite backup on this one, as other device files are not created in this case?

al2c5s:/> ioscan -fnC tape
Class     I H/W Path    Driver      S/W State H/W Type Description
=====================================================================
tape      0 8/16/5.0.0 stape       CLAIMED   DEVICE    HP      C1533A
                        /dev/rmt/c1t0d0BEST    /dev/rmt/c1t0d0BESTb   /dev/rmt/c1t0d0BESTn   /dev/rmt/c1t0d0BESTnb

Regards

Sunil

Re: Best device file to take an ignite backup on 10.20

Patrick Wallek — Mon, 12 Feb 2018 23:10:18 GMT

Use this one: /dev/rmt/c1t0d0BESTn

Re: Best device file to take an ignite backup on 10.20

Bill Hassell — Tue, 13 Feb 2018 06:29:25 GMT

Ignite (the make_tape_recovery command) requires the no-rewind device file. The naming convention using BEST was a very poor design, but you can look at the letters following. the word BEST. The letters are:

(no letter) = automatic rewind on close
b = Berkeley handling for tape (no automatic featuers)
n = no-rewind handling
nb = Berkeley and no-rewind

See the man page for mt (man 7 mt) for details.

Use /dev/rmt/c1t0d0BESTn for Ignite backup.

Re: Best device file to take an ignite backup on 10.20

Sunil Garg — Tue, 13 Feb 2018 18:04:25 GMT

Thanks Bill for the explanation!!