I have Centos 5.2 and am trying to set up my first tape loader, a Quantum SuperLoader 3. My "cat /proc/scsi/scsi" outputs the following: Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: transtec Model: PV610F16R1C Rev: 373I Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 01 Lun: 00 Vendor: HP Model: Ultrium 3-SCSI Rev: D22D Type: Sequential-Access ANSI SCSI revision: 03 Host: scsi1 Channel: 00 Id: 05 Lun: 00 Vendor: HP Model: Ultrium 4-SCSI Rev: B54Z Type: Sequential-Access ANSI SCSI revision: 05 It is my understanding that there should be TWO devices for the loader, one for the tape drive and one for itself. From reading around, it seems that it's lacking Multiple LUM support. My question is, are more recent versions of CentOS enabling that by default? Either compiling kernel modules or doing a full upgrade of the system are "big" jobs in my case, but I'd prefer the upgrade if 5.5 works out of the box. Or do I really need to recompile kernel, enable max_lums in modprobe.conf, etc? Thank you Abe ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by Clearswift for the presence of computer viruses. www.clearswift.com **********************************************************************
At Wed, 05 Jan 2011 17:53:16 +0100 CentOS mailing list <centos at centos.org> wrote:> > I have Centos 5.2 and am trying to set up my first tape loader, a > Quantum SuperLoader 3. My "cat /proc/scsi/scsi" outputs the following: > > Attached devices: > Host: scsi0 Channel: 00 Id: 00 Lun: 00 > Vendor: transtec Model: PV610F16R1C Rev: 373I > Type: Direct-Access ANSI SCSI revision: 05 > Host: scsi1 Channel: 00 Id: 01 Lun: 00 > Vendor: HP Model: Ultrium 3-SCSI Rev: D22D > Type: Sequential-Access ANSI SCSI revision: 03 > Host: scsi1 Channel: 00 Id: 05 Lun: 00 > Vendor: HP Model: Ultrium 4-SCSI Rev: B54Z > Type: Sequential-Access ANSI SCSI revision: 05 > > > It is my understanding that there should be TWO devices for the loader, > one for the tape drive and one for itself. From reading around, it seems > that it's lacking Multiple LUM support. My question is, are more recent > versions of CentOS enabling that by default? Either compiling kernel > modules or doing a full upgrade of the system are "big" jobs in my case, > but I'd prefer the upgrade if 5.5 works out of the box. Or do I really > need to recompile kernel, enable max_lums in modprobe.conf, etc?The current CentOS 5 kernel (CentOS 5.5: 2.6.18-194.26.1.el5) has multiple LUN support enabled (this is the stock kernel): sauron.deepsoft.com% grep LUN /boot/config-2.6.18-194.26.1.el5 CONFIG_PREEMPT_VOLUNTARY=y # Some SCSI devices (e.g. CD jukebox) support multiple LUNs CONFIG_SCSI_MULTI_LUN=y Upgrading to 5.5 is probably a good idea anyway.> > Thank you > > Abe > > ********************************************************************** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please notify > the system manager. > > This footnote also confirms that this email message has been swept by > Clearswift for the presence of computer viruses. > > www.clearswift.com > ********************************************************************** > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > >-- Robert Heller -- 978-544-6933 / heller at deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments
On January 5, 2011 08:53:16 am Abilio Carvalho wrote:> I have Centos 5.2 and am trying to set up my first tape loader, a > Quantum SuperLoader 3. My "cat /proc/scsi/scsi" outputs the following: > > Attached devices: > Host: scsi0 Channel: 00 Id: 00 Lun: 00 > Vendor: transtec Model: PV610F16R1C Rev: 373I > Type: Direct-Access ANSI SCSI revision: 05 > Host: scsi1 Channel: 00 Id: 01 Lun: 00 > Vendor: HP Model: Ultrium 3-SCSI Rev: D22D > Type: Sequential-Access ANSI SCSI revision: 03 > Host: scsi1 Channel: 00 Id: 05 Lun: 00 > Vendor: HP Model: Ultrium 4-SCSI Rev: B54Z > Type: Sequential-Access ANSI SCSI revision: 05Multiple LUN support has worked fine in Linux since, well, since there has been Linux on SCSI afaik. If your SCSI controller sees it CentOS should see it. Unless the driver sucks.
From: Abilio Carvalho <abilio.carvalho at bbp.ch>> I have Centos 5.2 and am trying to set up my first tape loader, a > Quantum SuperLoader 3. My "cat /proc/scsi/scsi" outputs the following: > Attached devices: > Host: scsi0 Channel: 00 Id: 00 Lun: 00 > Vendor: transtec Model: PV610F16R1C Rev: 373I > Type: Direct-Access ANSI SCSI revision: 05 > Host: scsi1 Channel: 00 Id: 01 Lun: 00 > Vendor: HP Model: Ultrium 3-SCSI Rev: D22D > Type: Sequential-Access ANSI SCSI revision: 03 > Host: scsi1 Channel: 00 Id: 05 Lun: 00 > Vendor: HP Model: Ultrium 4-SCSI Rev: B54Z > Type: Sequential-Access ANSI SCSI revision: 05 > It is my understanding that there should be TWO devices for the loader, > one for the tape drive and one for itself. From reading around, it seems > that it's lacking Multiple LUM support. My question is, are more recent > versions of CentOS enabling that by default? Either compiling kernel > modules or doing a full upgrade of the system are "big" jobs in my case, > but I'd prefer the upgrade if 5.5 works out of the box. Or do I really > need to recompile kernel, enable max_lums in modprobe.conf, etc?Hum... Last time I used an autoloader, around 1999, it was working out of the box... I see 3 devices: the loader, and 2 drives... Do you mean there is really only 1 drive? JD