Bacula-users

Re: [Bacula-users] tape size & speed LTO-1 drive

2009-11-30 08:52:39
Subject: Re: [Bacula-users] tape size & speed LTO-1 drive
From: Jens Froehlich <jens.froehlich AT medav DOT de>
To: bacula-users AT lists.sourceforge DOT net
Date: Mon, 30 Nov 2009 14:49:35 +0100
John Drescher schrieb:
> On Mon, Nov 30, 2009 at 7:21 AM, Jens Froehlich <jens.froehlich AT medav DOT 
> de> wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Hi bacula-users,
>>
>> I has a problem with my Bacula (3.0.2) installation on OpenSuSE 11.1
>> (32Bit). The LTO-1 tapes are described only a half, nevertheless, it
>> should fit 100 GB on it? I already succeed different values of the
>> parametres " minimum block size" and "maximum blocksize" tested,
>> unfortunately. If I the tapes with tar describe I reach 100 GB. I also
>> find the writing speed with 6 MB/S a little bit slow?
>>
>> - ----------------------------------------------------------------------
>> Pool: DailyTAPE
>>
>> DailyTAPE-0001 | Full      |       1 | 54,780,100,608 |        1 |
>> 518,400 |       1 |    1 |         1 | LTO-1
>>
>> DailyTAPE-0002 | Full      |       1 | 53,212,479,488 |        1 |
>> 518,400 |       1 |    2 |         1 | LTO-1
>>
>> .....
>>
>> DailyTAPE-0010 | Append    |       1 |        131,072 |        0 |
>> 518,400 |       1 |    10 |         1 | LTO-1
>> - ----------------------------------------------------------------------
>>
>> What must I do, the Bacula the tapes with at least 90 - 95 GB describes?
>> Can somebody help me here?
>>
> 
> Check for scsi errors in your dmesg.
> 
> John
> 
I can find here no mistakes

bacula:~ # dmesg  | grep scsi
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0
scsi 0:0:4:0: Sequential-Access HP Ultrium 1-SCSI E32U PQ: 0 ANSI: 3
scsi target0:0:4: Beginning Domain Validation
scsi target0:0:4: wide asynchronous
scsi target0:0:4: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
scsi target0:0:4: Domain Validation skipping write tests
scsi target0:0:4: Ending Domain Validation
scsi 0:0:6:0: Medium Changer OVERLAND LXB 0101 PQ: 0 ANSI: 2
scsi target0:0:6: Beginning Domain Validation
scsi target0:0:6: wide asynchronous
scsi target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 15)
scsi target0:0:6: Domain Validation skipping write tests
scsi target0:0:6: Ending Domain Validation
scsi target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 15)

Also "warn" and "messages" are negative.

Jens


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