problems to expect with >2TB volumes
Hi,
we have not bought the device yet, but presently in the process to do so. Before we buy it, I want to know about problems in advance...
I'm somewhat worried about this problem report
http://lists.freebsd.org/pipermail/aic7xxx/2006-January/thread.html#4280
Especially as I don't see a final solution...
We also want to buy the very same raid device and also connect it to an already existing aic79xx controller.
Thanks in advance,
Bernd
Quoted 4 lines · Bernd Schubert
Hi,
we have not bought the device yet, but presently in the process to do so. Before we buy it, I want to know about problems in advance...
None that I'm aware of from the point of view of the Linux SCSI subsystem (starting at about half way through the lk 2.4 series or 4 years ago).
Quoted 5 lines
I'm somewhat worried about this problem report
http://lists.freebsd.org/pipermail/aic7xxx/2006-January/thread.html#4280
Especially as I don't see a final solution...
We also want to buy the very same raid device and also connect it to an already existing aic79xx controller.
On reviewing that thread, the original poster was jumping to premature conclusions. Justin Gibbs told him there was no such problem (and Justin is well placed to know). Then the final post shows a trace with READ(10) commands failing. They are 32 bit lba read operations that have been the default for about 10 years in the SCSI subsystem. If those fail on that transport it is probably a termination problem. When Justin saw that he probably didn't bother responding again.
Doug Gilbert
Hello Douglas,
thanks for your help, I was just a bit worried when I read the thread.
Quoted 10 lines
On reviewing that thread, the original poster was jumping to premature conclusions. Justin Gibbs told him there was no such problem (and Justin is well placed to know). Then the final post shows a trace with READ(10) commands failing. They are 32 bit lba read operations that have been the default for about 10 years in the SCSI subsystem. If those fail on that transport it is probably a termination problem. When Justin saw that he probably didn't bother responding again.
For a non-scsi protocol expert those scsi card dumps really don't say anything :(
Thanks again,
Bernd
Signature · 9 lines
Bernd Schubert Physikalisch Chemisches Institut / Theoretische Chemie Universität Heidelberg INF 229 69120 Heidelberg - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html