Disk Array

[shaikh_mahaboob]

hi

Yes in sam it is showing caching enabled


Thanks

Shaikh mahaboob

[shaikh_mahaboob]

Hello

Prasentation Utility is showing
Subsystem :FAULT,
Peer SP REMOVED
Statistics logging DISABLED
Request COMPLETED 560

please tell me about this all these settings ok or not

Thanks

Shaikh

[shaikh_mahaboob]

hi

Please find the attached file of disk array

[Bill McNAMARA_1]

From the attached, where are your LUNs?!

Do you see anything on
ioscan -fnkCdisk | grep C2


Cache: 8mb
Systm: 2mb Firmware Rev: HP02
Read: 0mb Disabled Microcode Rev: 9.26.07 Auto Trespass: Off
Write: 6mb Disabled Prom Rev Levl: 8.02.00 Stat Logging: Off


Your cache is disables because you have lost SPB

Go behind and power cycle it.

Or connect directly via RS232 to gridmanager and reset.

You can upgrade your controllers to the Phoenix revision, which will see a 2X perf increase. Ask your CE/RCE.

Later,
Bill

[shaikh_mahaboob]

hi

here is the attachment after issuing the command please find the attachment
and please tell me clearly

Thanks

Shaikh

[shaikh_mahaboob]

hi

here is the attachment after issuing the command please find the attachment
and please tell me clearly

Thanks

Shaikh

[Bill McNAMARA_1]

Unfortunately your LUNs are gone.

The LUN 1 is
NO_HW

The LUN 0 doesn't exist from your earlier attachment.
(But will show up as CLAIMED no matter what, once the server can communicate with the array)

So, you're going to have to recreate your LUNs (Bind) and restore all your data.

There are a few tricks with Gridmanager using Ctrl ][][][][ diagnostic mode to repair disk headers but you'd need to know exactly what was configured earlier... not many people know how to use those diags either..


What I recommend is looking at the
strings /etc/lvmtab
output now and determining what vg is lost and the output of
cat /etc/fstab to determine what file systems are lost
and get out the backups.


The only idea I have of why it's all gone horribly wrong is
1> Firmware/Patch
2> Somebody deleted the LUNs
via GridManager Connecting to the RS232.

3> ?


I suggest powering off, waiting 1 minute, and then powering on the array first.

Then when the array is back up:

ioscan -f


top
(wait for the ioscan to finish)

ioscan -fnkC disk | grep C2

hopefully your LUNs will come back although I doubt it.

Call HP Support and get a qualified CE on site to see what he can do.


Later,
Bill

[Bill McNAMARA_1]

By the way, disabled Write cache does not necessarily meant that the DIMM is failed.

You have an option to configure Write cache from Gridmanager.

Heres a Nike links:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x417edfe5920fd5118fef0090279cd0f9,00.html

[Bill McNAMARA_1]

Correcting the above link:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x5b7750011d20d6118ff40090279cd0f9,00.html

[shaikh_mahaboob]

hi

just now i build the LUN with 12 disk raid 5

here i am sending attachment pls checkout and help me

thanks


Shaikh mahaboob