the simplest way of doing it is Only if u r scsi card is detected is compile a kernel and make it * in the kernel so it will come up with every boot in SCSI Tape drive option. This is a 15-25 Min Job depending on ur config and will tell you where u stand and also is it possible or not. for any further help u can mail me on my ID aswell regards
----- Original Message ----- From: "C. Linus Hicks" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, September 20, 2002 10:35 PM Subject: Re: Compact 20/40 Dat External not detected by Redhat > On Fri, 2002-09-20 at 06:17, Amanda Galligan wrote: > > Red hat 7.1 kernel-smp-2.4.2-2 no reference to tape drive in /var/log/dmesg > > or in /proc/scsi/scsi > > Tape is found on system boot as "scsi port 1 scsi id 6" > > Do you mean during the BIOS scan or while booting Linux? > > > System is Compact DL380 G2 running Compaq CISS driver v 2.4.2 > > I am not familiar with the Compaq drivers, so I looked on their web site > to check out what this thing is. > > > We had previously a hot swap internal which also wasnt found and were > > assured by Compaq that external would be detected on boot ? > > Silly question but is there any further tweaking that needs to be done to > > kernel etc to get this drive picked by by red hat ?? > > First make sure you have SCSI tape support in your kernel. Look in > /lib/modules/<your kernel name here>/kernel/drivers/scsi and you should > see st.o, or you can try doing "modprobe st". If that returns "Can't > locate module st", then you need to make a new kernel with SCSI tape > support. The only caveat here is that it's also possible to "compile-in" > support for SCSI tape, but that's not very common. > > I also noticed this interesting tidbit on Compaq's web site in the > changelog which I believe is the right one, but I suggest you make your > own investigation as you know better than I do what hardware you have. > I'm aware you say you have version 2.4.2 of the CISS driver, but > according to the changelog, support for SCSI tape drives wasn't added > until 2.4.21: > > ftp://ftp.compaq.com/pub/products/drivers/linux/released/cciss/cciss_history .htm > > Revision History for cciss Driver > > Version 2.4.23 > > Changed back to indexing using a sequential series due to issues with an external storage box. This means if you add a disk online, > the disks MAY reorder on when you reboot the system. Added a new IOCTL to register disks that where reserved when the driver > initialized (When the disk has been reserved, the scsi command to find out the disk geometry and other information fails). Also added > an IOCTL to return the Lun ID that you can then use as the logical volume address if a program does a CISS passthrough commands > to that logical volume. > > Version 2.4.21 > > Added support for SCSI tape drives. Added support for dynamically adding and removing logical volumes, This implies that the disk > index ("x" in /dev/cciss/c*b*dx*) is no longer a contiguous sequential series (e.g. 0,1,2,3) as it now maps to logical volume numbers > directly and thus there may be gaps. > > (Note, due to bug in sd driver, tape support will not work with 2.4.10 kernel, 2.4.11-pre3 or better is required) > > Version 2.4.6 > > Version 2.4.6 allocates command buffers with pci_dev=NULL, so we get back 24bit DMA about buffers. This allows us to set out DMA > bit mast to 64bit dma. Giving us the ability to handle 64bit addresses on IA64 machines avoiding the swiotlb limits. > > Version 2.4.5 > > Version 2.4.5 uses the new 2.4 kernel DMA APIs to support IA64 machines with over 3G of memory. This driver is only capable of > doing 32 bit DMA so in a 64 bit system they will be using bounce buffers, so set your "swiotlb=" appropriately. It also uses the new 2.4 > PCI APIs, so controllers will be ordered by their position in PCI bus scan order. Note: This means your controller order may change > when you upgrade to this version of the driver. PCI Hot plug has not been tested with this version of the driver yet. > > Version 2.4.3 > > Version 2.4.3 fixes a bug with revalidating the volume after the partition table had been changed. With older version updating the > partition table of d15 would make d0 have a disk size of 0. Fixes a minor bug that kept the cciss directory in /proc/driver from being > removed when the driver unloaded. There is also a fix to try to improve performance in the 2.4 tree. Also a couple of messages from > the driver have been changed. Corrected a byte swap problem in SCSI-3 address structure for ioctls. > > > Good luck. > > Linus > > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
