Bacula-users

Re: [Bacula-users] LTO3 performance

2009-01-07 14:59:58
Subject: Re: [Bacula-users] LTO3 performance
From: Ralf Gross <Ralf-Lists AT ralfgross DOT de>
To: bacula-users AT lists.sourceforge DOT net
Date: Wed, 7 Jan 2009 20:57:02 +0100
Sergio Belkin schrieb:
> The output test was:
> 
> dd if=/dev/zero of=/dev/nst0 bs=1M count=1000
> 1000+0 records in
> 1000+0 records out
> 1048576000 bytes (1.0 GB) copied, 7.80926 seconds, 134 MB/s

This looks ok.
 
> Below is output of tapeinfo -f /dev/sg0
> 
> Product Type: Disk Drive

But sg0 is not the tape drive, it's a disk..

> Vendor ID: 'ServeRA '
> Product ID: 'raid 1          '
> Revision: 'V1.0'
> Attached Changer: No
> SerialNumber: '7E08591F'
> SCSI ID: 0
> SCSI LUN: 0
> Ready: yes
> BufferedMode: yes
> Medium Type: Not Loaded
> Density Code: 0x37
> BlockSize: 3748166
> DataCompEnabled: no
> DataCompCapable: no
> DataDeCompEnabled: no
> CompType: 0x35393146
> DeCompType: 0x300000
> 
> 
> Should I change something?

Show us the tapeinfo output of /dev/nst0 (while it's not in use) and
the complete output (messages) of a bacula job that is too slow.

Ralf

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