Hello Folks,

I'm wondering if there's a bug with 'Amtapetype' (version 3.5.1).

We're migrating from LTO5 to LTO7 and I'm getting strange results when I run 'amtapetype'.

Here's what I get after roughly 35 hours:

define tapetype LTO7 {
    comment "Created by amtapetype; compression enabled"
    length 5874932832 kbytes
    filemark 1813 kbytes
    speed 118310 kps
    blocksize 32 kbytes
}

Why is it saying that it can write roughly 6Tb if it's supposedly hardware compressed?  LTO7 is supposed to give a compression ration of 2.5 to 1.

I've disabled compression... Here's the ouptut of 'tapeinfo:

[root@ulysses ~]# tapeinfo -f /dev/sg12
Product Type: Tape Drive
Vendor ID: 'IBM     '
Product ID: 'ULTRIUM-HH7     '
Revision: 'G9Q1'
Attached Changer API: No
SerialNumber: '123456789A'
MinBlock: 1
MaxBlock: 8388608
SCSI ID: 4
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: 0x78
Density Code: 0x5c
BlockSize: 32768
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0xff
DeCompType: 0xff
Block Position: 2
Partition 0 Remaining Kbytes: -1
Partition 0 Size in Kbytes: -1
ActivePartition: 0
EarlyWarningSize: 0
NumPartitions: 0
MaxPartitions: 3

Am I missing something?

Thanks!|

--
Luc Lalonde, analyste
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Département de génie informatique:
École polytechnique de MTL
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