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Operating System - Tru64 Unix
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ES40 Rebuild Raid 5

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ahaack
Occasional Visitor

ES40 Rebuild Raid 5

Hi,
I inherited a ES40 which ran in autopilot for quite some years.
Lately I noticed a yellow light (failed disk) on the BA356.

I confirmed this from the srm console

show device
dra0.0.0.0.3.0 dra0 1 member jbod
dra1.0.0.0.3.0 dra1 5 member raid 5 degraded

A little more info with
show config
...
slot 3 mylex dac940
dra.0.0.0.3.0
dra0.0.0.0.3.0 dra0 1 member jbod
dra1.0.0.0.3.0 dra1 5 member raid 5

I replaced the broken disk.
Apparently I have to rebuild the degraded raid.
Can anybody tell me how to archive this?

My last contact with alpha days is quite 5 year back.

Thanks in advance
Andreas
4 REPLIES
Rob Leadbeater
Honored Contributor
Solution

Re: ES40 Rebuild Raid 5

Hi,

If the rebuild hasn't kicked in automatically, you will need to use the Raid Configuration Utility to start it.

See the user guide here:

ftp://ftp.hp.com/pub/alphaserver/storage/controllers/kzpac/rcu_ug.pdf

Cheers,

Rob
ahaack
Occasional Visitor

Re: ES40 Rebuild Raid 5

Thanks a lot Rob.

I could successfully recover the Raid 5.

* From the srm console I started the Alpha console:
arc
* I put the raid configuration floppy in the drive
* Then I went to the Run Utility menu and started the raid configuration utility:

a:arccf.exe

* The drive in question was labeled accordingly and I hit the rebuild button.
I chose to format the disk.
Disk formation took approx. 2.5 hours and rebuild about 1 hour.

*Now every thing was fine:
no yellow light show device and
/var/adm/messages showed that the disk group was ok/online.

Thanks again
Andreas

Rob Leadbeater
Honored Contributor

Re: ES40 Rebuild Raid 5

Hi,

Glad that it worked out. Remember to say thanks by assigning points.

Regards,
Rob
ahaack
Occasional Visitor

Re: ES40 Rebuild Raid 5

Solution is described above