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05-18-2010 12:15 AM
05-18-2010 12:15 AM
DS20 problem , booting not possible
i have an alphaserver DS20, which is not capable of booting after a problem occured with Power System. Now , the server is starting until the P0>>, and when i run the test command , i get the message :
Hard Error – Error #5
Error in read of 0 Bytes at location 00002A00 from device dra0.0.0.8.1
Diagnostic Name = exer_kid
ID = 000002c1
Device = dra0.0.0.8.1
Pass = 0
Test = 0
Hard / Soft = 1/0
What does this mean ?
how can i solve it ?
Regards
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05-18-2010 05:10 AM
05-18-2010 05:10 AM
Re: DS20 problem , booting not possible
> What does this mean ?
Sounds like a read error on dra0. From the
device name, I'd guess that this is a disk on
some RAID adapter about which I know nothing.
> [...] when i run the test command [...]
Why not the "boot" command?
While you're waiting for a response from
someone who knows something, you might
provide the output from
>>>show config
>>>show device
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05-18-2010 12:58 PM
05-18-2010 12:58 PM
Re: DS20 problem , booting not possible
dra0 is a RAID disk device provided by a KZPAC card, sometimes known as a SWXCR.
What happens when you try to boot ?
Do any of the hard drives show a yellow light ?
As Steven suggests, a "show dev" will probably yield some useful information.
You will probably want to hunt out the floppy that contains the RCU (RAID Configuration Utility) for the KZPAC.
Cheers,
Rob
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05-22-2010 09:55 PM
05-22-2010 09:55 PM
Re: DS20 problem , booting not possible
+++++++++++++++++++++++++++++++
1) When trying the command show Bios I noticed the system hangs for 2-3 minutes and then gives a 3-lines output :
Dra.0.0.8.1 â Mylex DAC960
Vga0.0.0.7.0 â ELSA
Pka0.7.0.6.0 â Adaptec AIC â 7895
2) When trying to boot normally either to single mode or multi user mode, I get the following error message:
Hard Error â Error #5
Error in read of 0 Bytes at location 00002A00 from device dra0.0.0.8.1
Diagnostic Name = exer_kid
ID = 000002c1
Device = dra0.0.0.8.1
Pass = 0
Test = 0
Hard / Soft = 1/0
3) When typing the command (show bootdef_dev) I get:
Dra0.0.0.8.1
4) When trying the command (show d) I get :
Dra0.0.0.8.1 DRA0 1 member JBOD
Dra1.0.0.8.1 DRA1 3 member RAID 5
Dra2.0.0.8.1 DRA2 3 member RAID 5
Dra3.0.0.8.1 DRA3 3 member RAID 5
Dra4.0.0.8.1 DRA4 3 member RAID 5
5) Version of alpha Bios is (ALPHABios 5.71-R1)
6) When checking system configuration and HDD configuration using the command alphabios â g I get :
⠦⠦.. Initializing Adaptec Storage #0
⠦⠦.. Initializing Adaptec Storage #1
⠦⠦.. Initializing Mylex Storage #0
No disks found under Adaptec Storage #0 and #1
Following disk are found under Mylex Storage #0:
Disk 0 Mylex Storage #0 SCSI ID 383 Size 0 MB ***off-line***
Disk 1 Mylex Storage #0 SCSI ID 384 Size â ¦.. MB
Disk 2 Mylex Storage #0 SCSI ID 385 Size â ¦.. MB
Disk 3 Mylex Storage #0 SCSI ID 386 Size ⠦⠦ MB
Disk 4 Mylex Storage #0 SCSI ID 387 Size â ¦.. MB
++++++++++++++++++++++++++++++++++++++++
REGARDS
DERAR
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05-22-2010 10:38 PM
05-22-2010 10:38 PM
Re: DS20 problem , booting not possible
> When typing the command (show bootdef_dev) I get:
> Dra0.0.0.8.1
> When trying the command (show d) I get :
> Dra0.0.0.8.1 DRA0 1 member JBOD
OK, your boot device is DRA0 which is Just a Bunch Of Disks (JBOD) and it looks to have failed. JBODs provide no resilience, so using one as a boot device is not a good idea.
Disk 0 Mylex Storage #0 SCSI ID 383 Size 0 MB ***off-line***
Having said that the SCSI ID above looks wrong, so this could be an issue with the disk, the Mylex controller or both.
Cheers,
Rob
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05-23-2010 12:00 AM
05-23-2010 12:00 AM
Re: DS20 problem , booting not possible
what does it mean when saying (disk is off-line) ???
and why is the SCSI ID wrong ?
i have 7 disks inside the DS20 enclosure ? the 3rd from left is blinking red-orange .
i wonder that i can see only 5 disks :
1 is JBOD
4 are members of RAID 5,
and the other 2 are not showing here.
How can i interpret this ?
Thanks alot
DERAR
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05-23-2010 01:19 AM
05-23-2010 01:19 AM
Re: DS20 problem , booting not possible
> what does it mean when saying (disk is off-line) ???
Offline means that the RAID controller can't see the disk - either it has failed or there's something else wrong.
If you do only 7 physical disks, then this looks more likely to be an issue with the RAID controller itself. That seems to think that there are 13 physical disks (the JBOD and 4 x 3 Disk RAID 5s).
Either way, I hope you have good backups of this system.
Cheers,
Rob