[Veritas-bu] Netbackup Datacenter using 8mm tape drive

Please advise if this tape drive can not be used with Netbackup Datacenter.
which is the cheapest model from Sun that can be used.

how about DLT drives ?

Please advise.

-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of
Unix_Nt_Consultant AT verizon DOT net
Sent: Saturday, March 13, 2004 10:02 PM
To: 'Darren Dunham'
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Netbackup Datacenter using 8mm tape drive


OK, so in short are you saying I can use  0hbn in veritas
drive configuration ? I tried 0hbn .. here are the same results.

Please advise which device I can use in Veritas.. none seem to work.

# mt -f /dev/rmt/0n status
Exabyte EXB-8500 8mm Helical Scan tape drive:
   sense key(0x0)= No Additional Sense   residual= 0   retries= 0
   file no= 0   block no= 0
# mt -f /dev/rmt/0hbn status
/dev/rmt/0hbn: no tape loaded or drive offline

-----Original Message-----
From: Darren Dunham [mailto:ddunham AT taos DOT com]
Sent: Friday, March 12, 2004 5:01 PM
To: Unix_Nt_Consultant AT verizon DOT net
Subject: Re: [Veritas-bu] Netbackup Datacenter using 8mm tape drive


> 
> what do you mean hbn .. here are the devices i have 
> 
> # ls
> 0     0bn   0cb   0cn   0hb   0hn   0lb   0ln   0mb   0mn   0u    0ubn
> 0b    0c    0cbn  0h    0hbn  0l    0lbn  0m    0mbn  0n    0ub   0un
                          ^^^^

Right there is the hbn device.

cbn is normally for compression (and would be on an 8500c), so the the
8500 is complaining about it.  'hbn' should be the same density setting,
but without compression.

The Solaris 'st' device has 4 different density settings available to
it.  In order they are 'l', 'm', 'h', and 'c' or 'u' ('c' and 'u' are
identical).

For most exabyte devices, 'h' is the highest density setting supported
by the device, with the 'c/u' device the same density but with
compression.  The 'l' device is usually one density level behind
(probably compatible with the EXB-8200) and the 'm' device would be the
same but with compression enabled.

Besides that setting, the 'b' may or may not be present and defines
some characteristics of how the drive behaves to the driver, and the 'n'
is whether or not the tape will rewind when it is closed.  


-- 
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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