RE: Tape size problem

[Lloyd Weehuizen]

Yes, heres /proc/scsi/devices:

Host: scsi2 Channel: 00 Id: 04 Lun: 00
  Vendor: HP   Model: Ultrium 2-SCSI   Rev: F5AH
  Type:   Sequential-AccessANSI SCSI revision: 03

And the tapes I'm using are Imation Black Watch 400GB/200GB Ultrium LTO
2.

Thanks,
Lloyd

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Alexander Jolk
Sent: Tuesday, 25 October 2005 3:29 a.m.
To: Lloyd Weehuizen
Cc: amanda-users@amanda.org
Subject: Re: Tape size problem


Lloyd Weehuizen wrote:
> I have been using Amanda to automate backups to a Ultrium LTO 2 device

> for about a year now. Up until now there have been no issues and the 
> backups were easily fitting on the tapes. However lately the datasize 
> is going above 100Gig and for some reason Amanda is reporting it has 
> reached the end of the device even though it is a 200G native tape.

Are you sure your drive and tapes are LTO-2?  I'm using LTO-2 with 
hardware compression off, and I routinely hit EOT around 206 million KB.

Alex





-- 
Alexander Jolk / BUF Compagnie
tel +33-1 42 68 18 28 /  fax +33-1 42 68 18 29

Re: Tape size problem

[Alexander Jolk]

Lloyd Weehuizen wrote:

I have been using Amanda to automate backups to a Ultrium LTO 2 device
for about a year now. Up until now there have been no issues and the
backups were easily fitting on the tapes. However lately the datasize is
going above 100Gig and for some reason Amanda is reporting it has
reached the end of the device even though it is a 200G native tape.


Are you sure your drive and tapes are LTO-2?  I'm using LTO-2 with 
hardware compression off, and I routinely hit EOT around 206 million KB.


Alex





--
Alexander Jolk / BUF Compagnie
tel +33-1 42 68 18 28 /  fax +33-1 42 68 18 29

Tape size problem

[Lloyd Weehuizen]

I have been using Amanda to automate backups to a Ultrium LTO 2 device
for about a year now. Up until now there have been no issues and the
backups were easily fitting on the tapes. However lately the datasize is
going above 100Gig and for some reason Amanda is reporting it has
reached the end of the device even though it is a 200G native tape.

I've ensure'd hardware compression is off and even running an amtapetype
says the tape is only 100Gig.

amtapetype output:

[EMAIL PROTECTED]:~# amtapetype -e 200G -f /dev/nst0
Writing 512 Mbyte   compresseable data:  42 sec
Writing 512 Mbyte uncompresseable data:  45 sec
Estimated time to write 2 * 204800 Mbyte: 36000 sec = 10 h 0 min
wrote 3080192 32Kb blocks in 47 files in 7603 seconds (short write)
wrote 3178496 32Kb blocks in 97 files in 7613 seconds (short write)
define tapetype unknown-tapetype {
comment "just produced by tapetype prog (hardware compression off)"
length 97792 mbytes
filemark 0 kbytes
speed 13162 kps
}

Is the operating system ( Debian Linux - kernel 2.6.13 ) somehow
limiting the tape device size? Has anybody encountered this before I
have no idea how this is happening.

Thanks for your help.
Lloyd