Joshua Baker-LePain wrote:
> On Tue, 7 Nov 2006 at 12:39pm, Plant, Dean wrote
>
>> I am currently testing an Overland Tape storage unit with a LTO-3
>> drive on CentOS 4.4. After a random amount of time but usually when
>> we have backed up about 0.5-1TB we get scsi errors which cause the
>> backup to fail. I have rebuilt the box with Solaris 10 x86 and
>> Windoze to prove the hardware and have successfully backed up over
>> 3TB on each OS without error.
>>
>> Can anyone offer advice on how to find out what is causing the error
>> in CentOS.
>
> Your best bet to track down exactly what those errors mean would be to
> head over to the linux-scsi list. But I can tell you that I've been
> using an Overland LTO3 library on centos-4 for over a year now with
> very good results. The 2 main differences are that I'm using an
> x86_64 server (I doubt that makes much difference) and an LSI 21320
> HBA. I have had nothing but good luck with LSI adapters, and I think
> it'd be worth it for you to give one a shot.
>
> I will say this, though. If you plan on ever using 2 drives in the
> library, get the 22320, which has 2 external channels. I've been
> tearing my hair out trying to get both drives in my library to write
> at full speed at the same time, and no matter what driver tweaks I
> make, I just can't get it to go. My 22320 arrives today, and I'm
> rather hoping that'll fix the problem.
I thought I would give your suggestion a go and bought in a LSI 21320R
scsi card and installed a fresh copy of CentOS 4.4. Now on boot I get
the following error and the Overland Library is not detected. Did you
change any options in the LSI scsi bios?
SCSI subsystem initialized
Fusion MPT base driver 3.02.62.01rh
Copyright (c) 1999-2005 LSI Logic Corporation
Fusion MPT FC Host driver 3.02.62.01rh
Fusion MPT SPI Host driver 3.02.62.01rh
mptbase: Initiating ioc0 bringup
ioc0: 53C1030: Capabilities={Initiator}
scsi0 : ioc0: LSI53C1030, FwRev=01033010h, Ports=1, MaxQ=222, IRQ=169
Vendor: HP Model: Ultrium 3-SCSI Rev: G33H
Type: Sequential-Access ANSI SCSI revision: 03
mptbase: ioc0: IOCStatus(0x0002): Busy
mptscsi: ioc0: attempting task abort! (sc=f7d01c80)
scsi0 : destination target 1, lun 1
command = Inquiry 00 00 00 3a 00
mptbase: ioc0: IOCStatus(0x0048): SCSI Task Terminated
mptscsi: ioc0: task abort: SUCCESS (sc=f7d01c80)
mptscsi: ioc0: attempting bus reset! (sc=f7d01c80)
scsi0 : destination target 1, lun 1
command = Inquiry 00 00 00 3a 00
mptscsi: ioc0: bus reset: SUCCESS (sc=f7d01c80)
mptscsi: ioc0: attempting task abort! (sc=f7d01c80)
scsi0 : destination target 1, lun 1
command = Test Unit Ready 00 00 00 00 00
mptbase: ioc0: IOCStatus(0x0048): SCSI Task Terminated
mptscsi: ioc0: task abort: SUCCESS (sc=f7d01c80)
mptscsi: ioc0: Attempting host reset! (sc=f7d01c80)
mptbase: Initiating ioc0 recovery
mptscsi: ioc0: attempting task abort! (sc=f7d01c80)
scsi0 : destination target 1, lun 1
command = Test Unit Ready 00 00 00 00 00
mptscsi: ioc0: task abort: SUCCESS (sc=f7d01c80)
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 1 lun 1
scsi scan: 58 byte inquiry failed with code 524288. Consider
BLIST_INQUIRY_36 for this device
scsi0 (1:1): rejecting I/O to offline device
mptbase: ioc0: IOCStatus(0x0048): SCSI Task Terminated
scsi: Unexpected response from host 0 channel 0 id 1 lun 1 while
scanning, scan aborted
mptbase: Initiating ioc1 bringup
ioc1: 53C1030: Capabilities={Initiator}
scsi1 : ioc1: LSI53C1030, FwRev=01033010h, Ports=1, MaxQ=222, IRQ=177
Fusion MPT SAS Host driver 3.02.62.01rh