On 13/12/05, Bryan J. Smith <thebs413@earthlink.net> wrote:
Marc Peiser <marcpeiser@gmail.com> wrote:
> I'm trying to get a scsi tape device (Sony SDX-D500V)
> working on my dell 2450 running centos 4.2. I can see the
> device (ch1, id2) using the dell bois raid utility, but
> once booted into linux I can't see any mention of it in
> the logs or dmesg.

Is it the same SCSI controller as the SCSI disks?
Are the SCSI disks in a hardware RAID configuration?

Yes, you're right. I'm using the onboard scsi controller. Channel/scsi 0 has 5 disks (id 0-4) in RAID 5 configuration, the tape drive is connected to the channel 1, id 2.


Just FYI, some Linux drivers for SCSI cards with RAID only
have disk/block support, and not more advanced support for
rich peripherals like optical/tape on the same controller.

[ I don't know if that is your case, I haven't researched
your Dell model/configuration. ]

Just had another look at the output from dmesg and see the following:

SCSI subsystem initialized
ACPI: PCI interrupt 0000:05:04.0[A] -> GSI 31 (level, low) -> IRQ 217
ACPI: PCI interrupt 0000:05:04.1[B] -> GSI 30 (level, low) -> IRQ 225
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
        <Adaptec aic7899 Ultra160 SCSI adapter>
        aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
        <Adaptec aic7899 Ultra160 SCSI adapter>
        aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
megaraid cmm: 2.20.2.6 (Release Date: Mon Mar 7 00:01:03 EST 2005)
megaraid: 2.20.4.6 (Release Date: Mon Mar 07 12:27:22 EST 2005)
megaraid: probe new device 0x101e:0x1960:0x1028:0x0493: bus 2:slot 0:func 0
ACPI: PCI interrupt 0000:02:00.0[A] -> GSI 18 (level, low) -> IRQ 193
megaraid: fw version:[1.57] bios version:[3.13]
scsi2 : LSI Logic MegaRAID driver
scsi[2]: scanning scsi channel 0 [Phy 0] for non-raid devices
  Vendor: DELL      Model: 1x5 U2W SCSI BP   Rev: 1.30
  Type:   Processor                          ANSI SCSI revision: 02
scsi[2]: scanning scsi channel 1 [Phy 1] for non-raid devices
scsi[2]: scanning scsi channel 2 [virtual] for logical drives
  Vendor: MegaRAID  Model: LD0 RAID5 38712R  Rev: 1.57
  Type:   Direct-Access                      ANSI SCSI revision: 02
SCSI device sda: 284082176 512-byte hdwr sectors (145450 MB)
sda: asking for cache data failed
sda: assuming drive cache: write through
 sda: sda1 sda2
Attached scsi disk sda at scsi2, channel 2, id 0, lun 0
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Attached scsi generic sg0 at scsi2, channel 0, id 6, lun 0,  type 3
Attached scsi generic sg1 at scsi2, channel 2, id 0, lun 0,  type 0

I'm not sure what this means, but looks to me like LSI Logic MegaRAID driver should find my tape device. Is that correct?

> Do you know if the generic kernel (2.6.9-22.0.1.ELsmp)
> supports this tape device?

Yes.  But I think you're issue is something else (as above).

> Can anyone give me any pointers in getting this
> device working.

If you do an "lsmod", we can find out more about your SCSI
controller.

 
[root@vindaloo ~]# lsmod
Module                  Size  Used by
md5                     8001  1
ipv6                  240097  28
autofs4                22085  0
i2c_dev                14273  0
i2c_core               25921  1 i2c_dev
sunrpc                139173  1
microcode              11873  0
dm_mod                 58949  0
button                 10449  0
battery                12869  0
ac                      8773  0
ohci_hcd               23889  0
tg3                    85061  0
e100                   38209  0
mii                     8641  1 e100
floppy                 58065  0
sg                     38113  0
ext3                  118729  1
jbd                    59481  1 ext3
megaraid_mbox          37073  2
megaraid_mm            17905  1 megaraid_mbox
aic7xxx               146425  0
sd_mod                 20545  3
scsi_mod              116429  4 sg,megaraid_mbox,aic7xxx,sd_mod
[root@vindaloo ~]#

 

Now if your tape is attached to a different controller (not
just a different channel on the same controller) than your
disks, then it's probably just the fact the SCSI driver isn't
loaded.

In either case, I need to know what disk controller.

Yes, same controller, different channel. I've included the output of dmesg for you to look at.

Thanks for your help.
 

--
Bryan J. Smith                | Sent from Yahoo Mail
mailto:b.j.smith@ieee.org     |  (please excuse any
http://thebs413.blogspot.com/ |   missing headers)
_______________________________________________
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos