Re: [expert] SCSI Errors with 2940U2W gone with Mandrake 7.1
Gavin Clark wrote: > > on 6/18/00 7:43 PM, John J. LeMay Jr. wrote: > > > For weeks I have been plagued with errors when trying to install Linux on my > > new machine with it's Adaptec 2940U2W and Seagate LVD drives. Previously I > > would > > receive errors such as: > > > > SCSI bus is being reset for host 0 channel 0 > > > > and > > > > SCSI host 0 ch 0 reset pid 0 timed out - trying harder > > > > and > > > > aborting command due to timeout: pid 0 scsi 0 channel 0 id 0 lun 0 0x00 00 00 > > 00 00 00 > > > > and > > > > host 0 abort (pid 0) timed out - resetting > > > > This would appear to loop indefinitely (I did not wait "indefinitely" to find > > out!). Unfortunately, no one seemed able to determine the actual problem. > > Besides installing 7.1, I had also: > > > > * Installed an active terminator on the end of the SCSI chain, LVD side. > > > > * Set terminiation to "auto" on the adapter, both Ultra and Ultra2 sides. > > > > * Enabled "term power to SCSI chain" on BOTH of the LVD drives I had > > installed. > > > > * Enabled termination on the CDROM residing on the Narrow/Ultra side. > > > > I hope this message makes it to anyone else having this same problem! > > > > John LeMay Jr. > > Senior Enterprise Consultant > > NJMC, LLC. > > > > Mandrake Linux 7.0 (2.2.14) / Polarbar Mailer 1.16c > > JDK 1.1.8 IBM build l118-2515 > > > > just as an addendum; there are two things I can think of that aren't on your > list: > > 1. make sure the jumpers are set to different settings on the drives > > 2. check that the BIOS is set to detect SCSI > > I have Mandrake Linux 7.0 (2.2.14) installed with the Adaptec 2940U2W with 2 > IBM U2W drives. I installed it on an third IDE drive. the installer hung on > trying to detect the card or load the driver the first couple of times but I > did get it to go after I changed the jumpers and the BIOS settings. > > also > the 2940U2W has it's own BIOS that you can drop into, it has utilities to > check the bus and drives. > > Gavin I fear you will find Adaptec support WORSE, not better in kernel 2.4. Seems some folks purporting to be Adaptec officials and with credentials suggesting the same made an appointment to work with one of the kernel authors... And then they no-showed. The kernel traffic articles on linuxcare recounted the circumstance and described it as yet another example of Adaptec going out of its way to be uncoooperative. THe 2940U2W controller has how many different firmware versions? Adaptec knows but it isn't telling, as usual. This particular brand is a nightmare to keep up with. I recall something like 17 or 19 versions of the 2940. I no longer politely express my concern to Adaptec, I just avoid their products. Civileme
Re: [expert] SCSI Errors with 2940U2W gone with Mandrake 7.1
on 6/18/00 7:43 PM, John J. LeMay Jr. wrote: > For weeks I have been plagued with errors when trying to install Linux on my > new machine with it's Adaptec 2940U2W and Seagate LVD drives. Previously I > would > receive errors such as: > > SCSI bus is being reset for host 0 channel 0 > > and > > SCSI host 0 ch 0 reset pid 0 timed out - trying harder > > and > > aborting command due to timeout: pid 0 scsi 0 channel 0 id 0 lun 0 0x00 00 00 > 00 00 00 > > and > > host 0 abort (pid 0) timed out - resetting > > This would appear to loop indefinitely (I did not wait "indefinitely" to find > out!). Unfortunately, no one seemed able to determine the actual problem. > Besides installing 7.1, I had also: > > * Installed an active terminator on the end of the SCSI chain, LVD side. > > * Set terminiation to "auto" on the adapter, both Ultra and Ultra2 sides. > > * Enabled "term power to SCSI chain" on BOTH of the LVD drives I had > installed. > > * Enabled termination on the CDROM residing on the Narrow/Ultra side. > > I hope this message makes it to anyone else having this same problem! > > John LeMay Jr. > Senior Enterprise Consultant > NJMC, LLC. > > Mandrake Linux 7.0 (2.2.14) / Polarbar Mailer 1.16c > JDK 1.1.8 IBM build l118-2515 > just as an addendum; there are two things I can think of that aren't on your list: 1. make sure the jumpers are set to different settings on the drives 2. check that the BIOS is set to detect SCSI I have Mandrake Linux 7.0 (2.2.14) installed with the Adaptec 2940U2W with 2 IBM U2W drives. I installed it on an third IDE drive. the installer hung on trying to detect the card or load the driver the first couple of times but I did get it to go after I changed the jumpers and the BIOS settings. also the 2940U2W has it's own BIOS that you can drop into, it has utilities to check the bus and drives. Gavin
[expert] SCSI Errors with 2940U2W gone with Mandrake 7.1
For weeks I have been plagued with errors when trying to install Linux on my new machine with it's Adaptec 2940U2W and Seagate LVD drives. Previously I would receive errors such as: SCSI bus is being reset for host 0 channel 0 and SCSI host 0 ch 0 reset pid 0 timed out - trying harder and aborting command due to timeout: pid 0 scsi 0 channel 0 id 0 lun 0 0x00 00 00 00 00 00 and host 0 abort (pid 0) timed out - resetting This would appear to loop indefinitely (I did not wait "indefinitely" to find out!). Unfortunately, no one seemed able to determine the actual problem. Besides installing 7.1, I had also: * Installed an active terminator on the end of the SCSI chain, LVD side. * Set terminiation to "auto" on the adapter, both Ultra and Ultra2 sides. * Enabled "term power to SCSI chain" on BOTH of the LVD drives I had installed. * Enabled termination on the CDROM residing on the Narrow/Ultra side. I hope this message makes it to anyone else having this same problem! John LeMay Jr. Senior Enterprise Consultant NJMC, LLC. Mandrake Linux 7.0 (2.2.14) / Polarbar Mailer 1.16c JDK 1.1.8 IBM build l118-2515