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тАО06-15-2009 02:39 PM
тАО06-15-2009 02:39 PM
Re: OVMS 7.2.1 cluster with RA3000
So I guess I could just connect Node 1 and 2 of the cluster to the controller host 0 and 1 in, as outlined on page 8. With the Adpaters terminating the ends of the scsi chain.
I am a bit confused why our current cluster uses a Scsi Y-cable to interconnect each node. Apart from moving the nodes in the middle of the SCSI chain, what is the advantage?
What is the difference on page 9?
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тАО06-15-2009 10:46 PM
тАО06-15-2009 10:46 PM
Re: OVMS 7.2.1 cluster with RA3000
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тАО06-18-2009 01:52 AM
тАО06-18-2009 01:52 AM
Re: OVMS 7.2.1 cluster with RA3000
The KZPBA adapters are listed as Qlogic ISP pka0 in "sho config" and I set pka0_host_id on node 1 to 7 and node 2 to 6, in order to avoid a scsi conflict. On each of the alpha's SRM console I can see the devices listed as dka0, dka1 and dka2.
Problem: At the beginning of the OVMS installation it asks for target disk and entering ? shows available disks. It shows dka0 status online. But, when I choose dka0 it reports "medium is offline" when trying to mount. I works fine on node 1, but fails on node 2. What am I missing here?
Another issue: I would like to enter the KZPBA bios to verify its settings. I enter "run bios pka0" and it starts the bios Utility, but the keyboard does not work to select an option or to move the cursor. Any ideas?
Thanks in advance,
Markus
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тАО06-19-2009 05:49 AM
тАО06-19-2009 05:49 AM
Re: OVMS 7.2.1 cluster with RA3000
While removing the termination resistors on the KZPBA cards I noticed that one of them had 1 of the 8 resistors missing. Could this be the reason for the failing of the HD mounting on that node when using the RA3000 in mid-bus configuration?
Anyone there? Thanks,
Markus
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тАО06-19-2009 07:37 AM
тАО06-19-2009 07:37 AM
Re: OVMS 7.2.1 cluster with RA3000
Do you have the KZPBA-CB User Guide?
http://vt100.net/mirror/mds-199909/cd3/storage/kzpbcugc.pdf
It should answer most of your termination and adapter questions.
You'll need to run eeromcfg to check/set the adapter's settings and starting the utility depends upon your console set-up configuration.
hth,
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тАО06-19-2009 09:13 AM
тАО06-19-2009 09:13 AM
Re: OVMS 7.2.1 cluster with RA3000
I was hoping to find another card which has all termination resistors, but I found only KZPBA-CY, which does not use them. From what I can gather the KZPBA-CY is differential scsi too, but obviously different. Can the KZPBA-CY be used to replace a KZPBA-CB. How is termination controlled on the CY?
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тАО06-19-2009 10:42 AM
тАО06-19-2009 10:42 AM
Re: OVMS 7.2.1 cluster with RA3000
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тАО06-19-2009 10:45 AM
тАО06-19-2009 10:45 AM
Re: OVMS 7.2.1 cluster with RA3000
As long as the termination is configured and cabled correctly, you should be able to use these controllers in the middle of the chain. I've always seen these with the Y cables in this configuration though.
Correct cabling and termination are paramount!
ftp://ftp.compaq.com/pub/products/storageworks/techdoc/raidstorage/EK-SMCPO-UG-C01.pdf
FYI:
According to an old Cybrary disk I found, there appears to be several KZPBA controller versions:
KZPBA-CA PCI to UltraSCSI SE
KZPBA-CB/CC PCI to UltraSCSI Differential
(the -CC was reworked for 3.3v).
PCI TO SCSI (FAST20 DIFFERENTIAL) Adapter KZPBA-CY 401922-001
PCI TO ULTRASCSI Adapter, Single Chnl, FWSE KZPBA-CX
PCI to UltraSCSI Adapter, Dual Channel,UWD KZPBA-DY
PCI to SCSI Adapter, FWSE KZPBA-BA
PCI to SCSI Adapter,FWD KZPBA-BB
FWIW:
The CA/CX and CB/CY get mixed up all the time so make sure you have the correct KZPBA controller for your configuration and termination.
The -CX and -CY are part of the -CA and -CB *kits* respectively.
If I remember correctly, the CB/CY have the terminator sockets whereas the CA/CX do not.
hth,
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тАО06-19-2009 10:50 AM
тАО06-19-2009 10:50 AM
Re: OVMS 7.2.1 cluster with RA3000
It is on the Alpha Firmware CD.
or here:
ftp://ftp.hp.com/pub/alphaserver/firmware/other/utility/
hth,
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тАО06-19-2009 11:08 AM
тАО06-19-2009 11:08 AM
Re: OVMS 7.2.1 cluster with RA3000
Looking closer at the card I see now that the one I found is indeed KZPBA-CX (not CY). I'm afraid now that this card could not be used, or?