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L&TT Hangs

MRaj
Occasional Visitor

L&TT Hangs

Hi ,

When I try to SCAN hardware using L&TT it hangs.(/opt/ltt/hp_ltt)
OS - Centos 4.4
Tape Drive -HP Ultrium 232
10:4:4:40:3:3:42:1:1:SystemTime:Friday April 20 2007 - 13\:23\:13:1252:0
10:1:4:10:0:0:0x20000140:1177089793:1177089793:0:4:8:0:0
10:2:4:40:1:3:120:50:0:0
10:3:4:40:2:3:41:1:1:s_system:4.2.1.0:enu
10:4:4:40:3:3:42:1:1:PlainText:Deleting perl log file failed; errno is 2:1252:0
10:1:3:11:0:2:0x20000210:1177089800:1177089800:0:1:8:0:0
10:2:3:40:1:2:110:1:0:0
10:3:3:40:2:2:41:1:1:u_cmdsh:4.2.1.0:enu
10:1:3:12:0:2:0x24001001:1177089800:1177089800:0:1:8:0:0
10:2:3:40:1:2:10:200:0:0
10:3:3:40:2:2:41:1:1:s_system:4.2.1.0:enu
10:1:4:13:0:0:0x20000140:1177089800:1177089800:0:1:8:0:0
10:2:4:40:1:3:120:50:0:0
10:3:4:40:2:3:41:1:1:s_system:4.2.1.0:enu
10:4:4:40:3:3:42:1:1:PlainText:DEBUG\: Failed to read a buffer which contains the /proc/scsi/usb-storage entries:1252:0



Can any one help me,

Thanks,

Raj


3 REPLIES
LTT Team
Valued Contributor

Re: L&TT Hangs

Hi Raj,

LTT is not supported on CentOS but there are a couple of things you can try
a) ensure the device is detected (cat /proc/scsi/scsi)
b) stop any application accessing the tape device
c) LTT requires the tape device to be on a separate HBA
d) run hp_ltt under root
e) allow LTT run for a longer period of time.

Can you let us know the adapter (SCSI) model number to which the tape device is connected?

If the tool still hangs, provide us the output of proc/scsi/scsi and the new eventlog.ltt.

Regards,
Satya
LTT Team
MRaj
Occasional Visitor

Re: L&TT Hangs

Hi Satya,


a) ensure the device is detected (cat /proc/scsi/scsi)
cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: HP Model: Ultrium 1-SCSI Rev: P54W
Type: Sequential-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 05 Lun: 01
Vendor: HP Model: 1x8 autoloader Rev: 1.50
Type: Medium Changer ANSI SCSI revision: 03

b) stop any application accessing the tape device
no application accessing the tape device

c) LTT requires the tape device to be on a separate HBA
Tape device connected to separate HBA ( Single Channel Ultra320 SCSI G2 host bus adapter)

d) run hp_ltt under root

I was running under root only

e) allow LTT run for a longer period of time.

I allowed more than 10 hours and still it hangs

Can you let us know the adapter (SCSI) model number to which the tape device is connected?

It is attached to ULTRA320 SCSI HBA G2 SINGLE Part No 24609c.

I am attaching the event log.

As per the evenlog.ltt it hangs at /proc/scsi/usb-storage entries and I could not find any files at /proc/scsi/usb-storgage* .Looks to me it is not finding any usb devices and this server(DL-380 G4) has usb device.

Any thoughts.

Thanks,

Raj








LTT Team
Valued Contributor

Re: L&TT Hangs

Hi Raj,

We installed CentOS 4.4 on one of our test servers and found LTT was unable to complete the hardware scan (on a rare case it did find the storage device but there were other abnormalities).

Hence, it would be better to run LTT on supported platforms.

Regards,
Satya
LTT Team