SCSI LUNS and PowerVault 122

Steve_Boley@Dell.com Steve_Boley at Dell.com
Tue Mar 25 10:18:59 CST 2003


Go to the bios of the controller and turn on multiple lun support for the
scsi id that the tape drive is on.  configure-view host adapter
settings/scsi device configuration/scsi id of tbu and enable multiple lun
support which is off by default.
Steve

-----Original Message-----
From: Karl Zander [mailto:KZander at commpartners.com]
Sent: Tuesday, March 25, 2003 10:13 AM
To: linux-poweredge at exchange.dell.com
Subject: SCSI LUNS and PowerVault 122


We have PowerVault 122T connected to a PowerEdge 1650 running RedHat Linux
7.3.

We have been struggling with the PowerVault.  It is seen and we can backup 
data to it.  But we have not been able to get full functionality.

Using MTX we can load and unload tapes from the autoloader slots.  And then 
using BRU we can run backup.  But the cleaning tape is never recognized.

We tried Tapeware from Yosemite Technologies.   It too does not see the 
autoloader.

When check /proc/scsi/scsi, the file is empty; nothing shows up.

Tech Support at Tapeware said we should try appending

append= "max_scsi_luns=2"

to the grub.conf file used at boot up to force the scanning for LUNS.  Did 
not change anything.

Viewing dmesg shows that the PowerVault 122 is detected at boot as shown in 
this clip (the PV 122 is from BenchMark.)

scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.6
         <Adaptec 3960D Ultra160 SCSI adapter>
         aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs

scsi2 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.6
         <Adaptec 3960D Ultra160 SCSI adapter>
         aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs

   Vendor: BNCHMARK  Model: VS640             Rev: 5032
   Type:   Sequential-Access                  ANSI SCSI revision: 02


It seems that some driver somewhere is missing for the autoloader.  I have 
talked with Dell Sever support; specifically the storage specialists.  They 
seem pretty focused on Veritas  on Windows.

-Karl

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